Cullen Technical Guide
ROOFS.
WALLS.
FLOORS.
Innovation in Every Connection. Trust in Every Build.
Contents
Information & Services ......................................................... 4-5 Company Profile & Services . ................................................. 4-5 Safety Guidelines & Best Practices..........................................6 General Guidelines................................................................8-9 Fixings for Cullen Connectors...........................................10-12 Eurocode 5.............................................................................13
Floors
Roofs
Timber to Timber Overview . .................................................. 15 UH & HUH: At A Glance..........................................................16 UH. .................................................................................... 17-30 HUH................................................................................... 31-41 MH Range..........................................................................42-43 KM.......................................................................................... 44 FTHI. ...................................................................................... 45 VS...................................................................................... 46-47 45-L/R. ................................................................................... 48 UZ...................................................................................... 49-50 I-CLIP................................................................................. 51-52 OW-CLIP............................................................................ 53-54 SHI. ................................................................................... 55-56 Paslode Structural Timber Screw......................................57-58 Timber to Masonry Overview ................................................. 59 JHI..................................................................................... 60-61 RB-JHI............................................................................... 62-63 FMHI. ................................................................................ 64-66 M-STD/RTN. ........................................................................... 67 VSM................................................................................... 68-69 RA...................................................................................... 70-73 HV-GR................................................................................ 74-75 Timber to Steel Overview ....................................................... 76 Steel Connections.............................................................77-79 Restraint Straps Overview......................................................80 Restraint Straps (Domestic Floors)...................................81-83 PFS......................................................................................... 84 PS Range................................................................................85
Timber To Timber Overview .............................................. 87-88 KM.......................................................................................... 89 TM.......................................................................................... 90 UTS......................................................................................... 91 TS........................................................................................... 92 HMH....................................................................................... 93 HGG........................................................................................ 94 VHGG. .................................................................................... 95 KH. ......................................................................................... 96 KHL. ....................................................................................... 97 MH RANGE........................................................................98-99 FTHI. .................................................................................... 100 LAB....................................................................................... 101 SA......................................................................................... 102 45-L/R. ................................................................................. 103 VS.................................................................................. 104-105 VRC. .............................................................................. 106-107 NP. ....................................................................................... 108 SB......................................................................................... 109 Paslode Structural Timber Screw..................................110-112 Timber to Masonry Overview ............................................... 113 JHI................................................................................. 114-115 RB-JHI........................................................................... 116-117 FMHI. ............................................................................ 118-120 M-STD/RTN. ......................................................................... 121 VSM............................................................................... 122-123 Timber to Steel Overview ..................................................... 124 Steel Connections................................................................125 KHL. ..................................................................................... 126
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Walls
Roofs
Timber to Timber Frame Overview . ..................................... 146 IR-CLIP. ................................................................................ 147 AWS...................................................................................... 148 PWS...................................................................................... 149 UZ......................................................................................... 150 RD-CDCR. ............................................................................. 151 HRS. ..................................................................................... 152 PSTS. ................................................................................... 153 NEW PRODUCT..............................................................154-156 Masonry to Timber Frame Overview ................................... 157 Timber Frame Wall Ties Page...............................................158 FT.................................................................................. 159-162 FT-125-150. ................................................................... 163-164 HMT. ............................................................................. 165-166 Holding Down Overview ...................................................... 167 ST-PFS.................................................................................. 168 SP......................................................................................... 169
Truss To Wall Plate Overview ............................................... 127 TC......................................................................................... 128 TA.................................................................................. 129-130 TA-1...................................................................................... 131 FAS....................................................................................... 132 SS......................................................................................... 133 ACE. ..................................................................................... 134 Restraint Straps Overview . .................................................. 135 Restraint Straps Domestic Roofs..................................136-139 PFS....................................................................................... 140 LDGS. ................................................................................... 141 VRS. ..................................................................................... 142 RST....................................................................................... 143 GRB. ..................................................................................... 144
Brands for the Offsite Industry ........................................... 170 Product Range Index ........................................................... 171
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Company Profile & Services
ITW Construction Offsite Europe ITW Construction Offsite Europe is part of the Illinois Toolworks family, an international corporation with over 100 years in the building and manufacturing industry. We are a trusted partner to leading offsite component manufacturers , allowing our customers to design, manufacture and sell the highest quality floor, roof and wall components. Our collaborative and customer-centric approach ensures we remain a leader in technology, research and development – providing innovative solutions, support and exceptional customer service with our market leading brands Cullen, Gang–Nail, Paslode and SPIT .
Illinois Toolworks Inc. (NYSE: ITW) ITW is a Fortune 500 global multi-industrial manufacturing leader. The company’s seven industry- leading segments leverage the unique ITW Business Model to drive solid growth in markets where highly innovative, customer-focused solutions are required. ITWs products and solutions are at work all over the world , in deep-sea oil rigs, aerospace technology, the spaces in which we live and work, the construction of those spaces, the cars we drive, and the mobile devices we rely on. ITW is committed to operational excellence and systematic new product development that helps our customers create the products and services that make their operations run smoothly.
Cullen Cullen timber engineering connectors have been synonymous with innovation and quality for over 40 years. Becoming part of ITW Construction Products Offsite in 2008, Cullen has benefitted from the expertise and resources of a global corporation allowing them to grow, invent and create more than before.
Designing and manufacturing a complete range of timber engineering connectors, Cullen is at the forefront of market trends, ideas and needs. Chosen for their highest quality and compliance of UKCA, EN845–1 and Eurocode 5, our timber engineering solutions will become a mainstay of your most valued business assets.
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Service Team We recognise that exceptional service is essential in the construction industry, and our dedicated team is committed to delivering a reliable and positive experience from start to finish. With our service team, you are fully supported by our highly qualified technical teams. With decades of experience, our technical experts are ready to offer assistance in timber engineering related matters. Our skilled professionals are not only experts within ITW, but they also play a leading role in the industry’s representative bodies across the globe . What makes us unique is that we have team members who are constantly involved in finding and developing innovative solutions to future challenges with these industry bodies. Assisting and driving the creations and updates for building legislation and standards.
Experience in Innovation We remain a leader in technology, research and
What makes us unique Our products have made a name for themselves by holding positions in niche markets where ITW technology can address customers’ unique needs like higher global standards for safety and energy efficiency as well as the growth of offsite construction projects. We are a fully integrated supply partner for all things related to the offsite and prefabrication industry in the UK and Ireland. With an experienced team, premium fixings and our own metalwork brand, we are the only company that can provide a holistic service for all your truss, panel, joist and metalwork needs. development, regularly collaborating along the value chain. We are constantly working with construction experts to create future-proof and innovative compliant solutions that increase productivity and solve industry problems. Our state of the art research facility in Glenrothes, Scotland includes an Instron test rig and timber conditioning chamber to allow fast track prototyping and testing. With more than 100 years of experience in manufacturing globally, our ITW staff are highly trained and experienced in providing high-quality service to customers.
Our customer service team plays an important role delivering a best in class customer experience.
They can assist you with:
— Processing your orders — Providing pricing and delivery information — Answering questions and queries — Putting you in touch with the correct member of our organization
Available Monday to Friday from 8.30am – 4:30pm.
Should you wish to call Technical Service or Customer Service, our phone lines are available Monday to Friday from 8.30am – 4.30pm +44(0) 1592 771132 Customer Service: orders@itwcp.com www.itwcoe.com Technical requests can be submitted 24/7 by emailing us at technical@itwcp.com
Scan or click to access our Technical Portal
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Safety Guidelines & Best Practices
Overview At Cullen, safety is our highest priority for customers, employees, and everyone on site. This section highlights key safety practices when handling, installing, and maintaining timber engineering connectors. — Always follow site-specific health & safety rules. — Wear the right PPE when working with our products.
Did you know? Wearing gloves can reduce the risk of cuts by over 60% when handling metal products.
General Site Safety — Always comply with national and site-specific health & safety regulations. — Wear appropriate PPE as per site safety rules. — Stay aware of your surroundings and avoid fall hazards at height.
General Site Safety — Store connectors in a dry, secure area to prevent corrosion or damage. — Do not stack products beyond recommended heights. — Use correct lifting techniques for heavy or bulky packs.
Improper lifting causes nearly 1 in 4 workplace injuries.
Installation Safety — Check tools and equipment are in good working order. — Ensure the structure is stable before installing connectors. — Avoid overloading connectors — always follow technical specifications. Training & Competence — Only trained and competent personnel should install or specify our products. — When in doubt, contact Cullen technical support for guidance.
Quick tip: Inspect connectors and fixings before installation — it can save hours of rework later!
Emergency & Support — In case of an incident, follow the site emergency procedures immediately.
These guidelines supplement but do not replace your site’s health & safety rules.
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Technical Information The technical information contained in this brochure is correct at the time of writing.. ITW Construction Offsite Europe reserve the right to amend, change or update the technical information without giving prior notice. For current product updates and technical information, visit our website www.itwcoe.com. The contents of this brochure and the latest product updates posted on the website supersede all previous Cullen publications including all brochures, installation guides, manuals and information sheets. General Guidelines
Design Information — The integrity of the building or structure must be validated by a suitably qualified Building Designer or Engineer (the “Designer”). — The Designer is responsible for determining that the appropriate connector and/or hanger has been selected. — Location and spacing of straps must be specified by the Designer. — When selecting the appropriate connector and/or hanger, consideration must be given to the safe working loads or characteristic capacities required, bearing support and connection details within the building or structure. — NHBC Standards state the following requirements for hangers for timber upper floors (Section 6.4). — Solid timber joists - I-joists - hangers should be the full depth of the joist and restrain the top flange, or be at least 0.6 x the depth of the joist and have stiffeners (full depth) fixed to both sides of the web — Metal web joist - hangers should be full depth of the joist and restrain the top flange , or another suitable means of restraining the top flange should be provided. — Solid timber joists - hangers should be full depth of the hanger. — Any bespoke Cullen product designed by ITW Construction Offsite Europe but manufactured by another (unless directed to by ITW Construction Offsite Europe) will not be covered under ITW Construction Offsite Europe‘s warranty. — ITW Construction Offsite Europe reserve the right to (i) change the design specifications and applications of any connector/hanger, or (ii) withdraw any connector or hanger without giving prior notice.
If you would like to be informed of new Cullen products, please visit our website.
All characteristic capacities are derived from tests and are underwritten by ITW Construction Offsite Europe. All characteristic values are derived from tests carried out by independent accredited test labs (unless otherwise stated). Cullen European Technical Approvals (ETA) have been submitted for approval using British Board of Agrѐment (BBA) as the approved notified body. General Installation Information — Correct product installation and construction practices must be followed at all times. — Timber members and Engineered Wood Products may split when nailed; this may reduce their characteristic capacity. — To achieve the characteristic capacities published all specified nails and fastenings must be used and installed as per the instructions set out in this brochure. — Failure to follow correct nailing procedures and instructions will reduce the characteristic capacities. — Only bend Cullen connectors when directed to by the appropriate Cullen installation guide, and when necessary “only bend once”.
NB . Any modification to any Cullen custom–made or manufactured connector and/or hanger product will void any warranty given by Cullen in relation to that particular connector and/or hanger product.
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Service Classes (BS EN1995–1–1 section 2.3.1.3) — (1)P Structures shall be assigned to one of the service classes given below. NOTE: The service class system is mainly aimed at assigning strength values and for calculating deformations under defined environmental conditions. Galvanised Protection Z275 galvanised coating is the minimum corrosion protection recommended for Service Class 2 applications (BS EN1995–1–1 Table 4.1 Examples of minimum specification for material protection against corrosion for fasteners). Z600 galvanised coating gives a greater corrosion protection for use with masonry applications (BS EN845–1 Annex A1, Table A.1 Materials and corrosion protection systems). NOTE: Information on the assignment of structures to service classes given in (2)P, (3)P and 4(P) may be given in the National Annex. — (2)P Service class 1 is characterised by a moisture content in the materials corresponding to a temperature of 20ºC and the relative humidity of the surrounding air only exceeding 65% for a few weeks per year.
— (3) P Service class 2 is characterised by a moisture content in the materials corresponding to a temperature of 20ºC and the relative humidity of the surrounding air only exceeding 85% for a few weeks per year.
NOTE: In service class 2 the average moisture content in most softwoods will not exceed 20%.
— (4) P Service class 3 is characterised by climatic conditions leading to higher moisture contents than in service class 2.
UK National annex to BS EN1995–1–1 states the following service classes for these applications:
Service Class
Type of Construction
Cold roofs Warm roofs
2 1 1 2 1 2 2 3
Intermediate floors
Ground floors
Timber–frame walls, internal and party walls
Timber–frame walls, external walls
External uses where member is protected from direct wetting
External uses, fully exposed
Environmental Product Declarations Our products come with certified Environmental Product Declarations (EPDs), ensuring standardized, third-party- verified data on their environmental impact. These documents adhere to international standards, providing clear insights into factors like carbon footprint, energy consumption, and resource use. This transparency helps customers seamlessly incorporate our products into their systems while meeting environmental reporting goals and requirements.
NOTE: In service class 1 the average moisture content in most softwoods will not exceed 12%.
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Fixings For Cullen Connectors
Fixings for Cullen
This section sets out the specification of ITW Construction Offsite Europe fasteners and fastening systems for use with Cullen timber engineered connectors. These fasteners have been tested in conjunction with the Cullen connectors, meaning that published design values are underwritten by ITW Construction Offsite Europe if used together.
Large round holes are provided to accommodate M12 or M20 bolts when specified All small round holes are to be filled with the correct qualified fastener
Fastening Cullen Connectors
To achieve the characteristic capacities published in this Cullen Technical Guide and specified by roof truss or floor joist design software, connectors must be installed using the correct number and type of fasteners. The fasteners in this section have been assessed and qualified as suitable for use with Cullen connectors. All published values are underwritten by ITW Construction Offsite Europe. Using an unqualified or alternative fastener could result in a reduced connector capacity and the design values not being underwritten.
Nailing through triangular holes provides additional performance when specified by the designer
Paslode Gas Positive Placement Nailer PPNXi
Paslode PPNXi Li–ion Gas Positive Placement Nailer Drives UKCA/CE compliant hardened twist nails through connectors and hangers into solid wood beams.
Nail Specification
Product Code:
141189
141185
Box Qty:
1,250
2,500
Shank Type:
Square Twist Hardened
Shank Diameter:
3.4mm 35mm 7.0mm 3.7mm
Length:
Head Diameter:
Product Code
Description
Average Profile Diameter:
PPNXi Li–ion Gas Positive Placement Nailer
019790
Finish:
12µm Electro Galv
Paslode Pneumatic Positive Placement Nailer
Paslode F250S PP Pneumatic Positive Placement Nailer Drives UKCA/CE compliant hardened twist nails through connectors and hangers into solid wood beams.
Nail Specification
Product Code:
140588
Box Qty:
3,000
Shank Type:
Square Twist Hardened
Shank Diameter:
3.4mm 35mm 7.0mm 3.7mm
Length:
Head Diameter:
Product Code
Description
Average Profile Diameter:
F250S PP Pneumatic Positive Placement Nailer
500855
Finish:
12µm Electro Galv
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Fixings For Cullen Connectors
Loose Fasteners
3.4 x 35mm Electrogalvanised Square Twist Nails
Paslode Structural Timber Screws
EN 14592
EN 14592
Product Code:
547389
Product Code:
See page 57
See page 57
Box Qty:
500
Box Qty:
100
100
Shank Type:
Square Twist
Outer Thread Shank Diameter:
6.5mm 4.8mm
8.0mm
Shank Diameter:
3.4mm 35mm 8.0mm 3.7mm
Plain Shank Diameter:
5.85mm
Length:
Length:
35 – 250mm
65 – 175mm
Head Diameter:
Head Diameter:
11.5mm
16mm
Average Profile Diameter:
Finish:
5µm Electro Galv
5µm Electro Galv
Finish:
12µm Electro Galv
3.35 x 50mm Stainless Steel Annular Ring Shank Nails
Product Code:
ST–PFS–FIXING PACK
ST–ST–WALLTIE–NAILS–250
Box Qty:
150
250
Shank Type:
Ring Shank
Ring Shank
Shank Diameter:
3.35mm
3.35mm
Length:
50mm
50mm
Head Diameter:
– –
– –
Average Profile Diameter:
Finish:
Stainless Steel
Stainless Steel
SPIT Powder Actuated Tool System
SPIT P370 Cordless Powder Actuated Tool For fixing to steel of thickness 5mm to 10mm.
SC9 Collated Drive Pins
Product Code:
011340
Box Qty:
500
Shank Type:
Drive Pin
Shank Diameter:
4mm
Length:
15mm 9.0mm
Head Diameter:
Product Code
Description
Average Profile Diameter:
–
P370 Powder Actuated Tool with Magazine (includes Single Shot Adaptor)
011071
Finish:
7µm Electro Galv
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Fixings For Cullen Connectors
BOLTS
M12 BOLT
M12 Bolt General Specification
Shank Type:
Threaded
Shank Diameter:
M12
M12 Bolt
Head Diameter A/F:
19.0mm
Head Thickness:
7.5mm
Grade: Finish:
8.8
>5µm Electro Galv
M12 Bolt Lengths
Product Code
Bolt Length (L) (mm)
Description
Round Washer
M12 x 180mm HRH Bolt (full thread to suit 140 – 180mm bolt length) & Nut M12 x 240mm HRH Bolt (full thread to suit 200 – 240mm bolt length) & Nut
M–12–180–HRH–FULL–THREAD
180
L
M–12–240–HRH–FULL–THREAD
240
Form G Washer
M12 Nuts & Washers
Product Code M–12–ROUND M–12–FORM–G
Diameter / Length (mm)
Thickness (mm)
Description
24 36
2.5 3.0
M12 Round Washer M12 Form G Washer
Nut (supplied with bolt)
M–12–NUT
19 A/F
10.0
M12 Nut
M20 BOLT
M20 Bolt General Specification
Shank Type:
Threaded
Shank Diameter:
M20
M20 Bolt
Head Diameter A/F:
30.0mm 12.5mm
Head Thickness:
Grade: Finish:
8.8
>5µm Electro Galv
M20 Bolt Lengths
Product Code
Bolt Length (L) (mm)
Description
Round Washer
M20 x 180mm HRH Bolt (full thread to suit 140 – 180mm bolt length) & Nut M20 x 240mm HRH Bolt (full thread to suit 200 – 240mm bolt length) & Nut
M–20–180–HRH–FULL–THREAD
180
L
M–20–240–HRH–FULL–THREAD
240
Form G Washer
M20 Nuts & Washers
Product Code M–20–ROUND M–20–FORM–G
Diameter / Length (mm)
Thickness (mm)
Description
36 60
2.5 5.0
M20 Round Washer M20 Form G Washer
Nut (supplied with bolt)
M–20–NUT
30 A/F
16.0
M20 Nut
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Eurocode 5
Eurocode 5 (BS EN1995–1–1) With BS 5268 part 2 & 3 being officially withdrawn in 2009 & 2010 the UK Trussed Rafter Association & UK Engineered Wood Products Committee have agreed that all designs will now be carried out to EC5. Eurocode 5 is the harmonised European Standard covering the design of timber structures. The purpose of the Eurocodes is to establish a common set of standards for the design of buildings across all European member states, although each member can have its own National Annex which is used in conjunction with the Eurocodes for design. Technical Approvals UK Timber–to–timber hangers (these are required to be assessed by a UK notified body) With the UK having left the European Union, European Technical Assessments (ETA’s) will no longer be accepted in the UK (from 1st January 2023) with timber–to–timber hangers to meet the requirements of UK Technical Assessment document (UKAD) no.130186–00–0603 Three dimensional nailing plates, which allows the hangers to be submitted for UK Technical Assessment (UKTA) which once issued enables the products to be UKCA marked. Are tested to meet the requirements of the harmonised standard BS EN 845–1 enabling them to be UKCA marked. Fasteners for timber structures (nails, screws and bolts) Are tested to meet the requirements of BS EN14592 enabling them to be UKCA marked. EU Timber–to–timber (these are required to be assessed by a European body notified body) All timber–to–timber hangers are tested to meet the requirements of European Assessment Document (EAD) no.130186–00–0603 Three dimensional nailing plates, which allows the hangers to be submitted for a European Technical Assessment (ETA) which once issued enables the products to be CE marked. Timber–to–masonry products (hangers, straps and wall ties)
Timber–to–masonry products (hangers, straps and wall ties)
Are tested to meet the requirements of the harmonised standard BS EN 845–1 enabling them to be CE marked.
Fasteners for timber structures (nails, screws and bolts) Are tested to meet the requirements of EN14592 enabling them to be CE marked.
Load Tables BS EN1995–1–1:2004+A1:2014 (EC5) is based on limit state design.
The characteristic capacity of the hanger is based on ultimate limit states and is unfactored.
What does this mean for our products? Only characteristic values for each product will be published in this guide and any future guides.
The characteristic value is the lower 5th percentile value obtained from test results.
A series of modification factors must be applied to the characteristic value to determine the Design Value. Timber to Timber Connectors Design Value = (F k x K mod ) / Y m F k = Characteristic value K mod = Modification factor for duration of load and moisture content (EN1995–1–1 table 3.1) Y m = Partial factors for material properties and resistance (1.3 for connections – EN1995–1–1 table 2.3) Timber to Masonry Connectors Design Value = F k / Y m F k = Characteristic value Y m = Partial factors for material properties and resistance (1.5 for masonry in accordance with NA to BS EN 1996-1-1:2022) (2.7 for masonry in accordance with NA to I.S. EN 1996-1-1:2010)
Example Load Data: UH Hanger Standard Installation – I–Joist Header without Backer Block
Fixings (3.4x35mm)
Characteristic Capacity (kN)
Hanger Depth (mm)
Header
I–Joist Header
Incoming
Uplift
(Depth Dependent Only)
Face
Top
Solid Flange
LVL Flange
220 235 300
8 8 8
2 2 2
4 4 4
3.97 3.97 3.97
11.13 11.89 11.89
12.94 11.79 11.79
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Floors
The Cullen floor connector range is engineered for efficient, high‑performance floor construction across timber‑to‑timber, timber‑to‑masonry, timber‑to‑steel, and restraint applications. The range includes standard, high, and very high load hangers, restraint straps, and ancillary connections that help the floor act as a single diaphragm for added structural rigidity. Our metal connectors strengthen common floor joints, improving build quality with reliable, tested connection details.
TIMBER TO TIMBER
TIMBER TO MASONRY
TIMBER TO STEEL
RESTRAINT
Compliance: The information we provide has been compiled using the minimum requirement from Building Regulations 2010 approved document A, Scottish Building regulation domestic, NHBC standards.
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Floors
Timber To Timber Overview
UH Pages 17 – 30
HUH Pages 31 – 41
STANDARD
KM Pages 44
FTHI Pages 45
MH RANGE Page 42 – 43
VERY HIGH LOAD
MINI
VERY HIGH LOAD
VS Pages 46 – 47
SHI Pages 56
45-L/R Page 48
UZ Pages 49 – 51
NOGGIN SUPPORT
SERVICE HOLE PLATE
SLOPED & SKEWED
PASLODE STRUCTURAL TIMBER SCREW Pages 57 – 58
OW-CLIP Pages 54 – 55
I-CLIP Pages 52 – 53
MULTIPLE CONNECTIONS
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Floors
UH & HUH: At A Glance
UH – QUICK REFERENCE GUIDE
Characteristic Capacity (kN) 1 2 3 4 5 6 7 8 9 10111213141516171819202122
23
Hanger Header
UH I–Joist Without Backer / Top Tabs Removed
7.43 – 7.83kN
I–Joist Without Backer I–Joist With Backer
11.13 – 12.94kN 13.09 – 21.02kN
Open Web / Top Tabs Removed
7.43kN
Open Web
13.23 – 14.19kN 16.84 – 22.16kN
Open Web With Plywood Gusset
Glulam (Min GL28)
16.84 – 22.16kN 15.25 – 22.17kN
LVL
HUH – QUICK REFERENCE GUIDE
Characteristic Capacity (kN) 1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526272829 30
Hanger Header
HUH I–Joist Without Backer
15.50 – 18.50kN
I–Joist With Backer
28.50kN
Open Web
13.95 – 18.60kN
Open Web With Blocking
24.00kN 29.50kN
Open Web With Plywood Gusset
Glulam (Min GL28)
29.50kN 29.50kN
LVL
PLEASE REFER TO PRODUCT PAGES FOR EXACT LOAD CAPACITIES
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Floors
Scan or click to view installation videos
UH (I–Joist Applications) Universal Hanger
The UH hanger is designed for any joist to joist, joist to trimmer or joist to steel application. Features & Benefits — Elongated slots and unique snap off feature allows for height adjustment and face fix only option — One hanger solution for backer and backerless I–Joists — Rear location tab to assist with installation — Additional triangular fixing holes for increased performance on solid members — Suitable for connections to steel work – see pages 77 – 79
GB Patent 2497747
UKTA–21/0008 UKTA - 21/0008
ETA–20/0999
Material Specification — Galvanised mild steel – Z275
Fixings Code
Description
Box Qty
547389 141185
3.4 x 35mm Square Twist Nails – LOOSE 3.4 x 35mm Square Twist Nails – COLLATED*
500
2,500
*For use with Paslode PPNXi (or 3.5 x 30mm wood screw for sacrificial stairwell installation only)
Available Sizes
Dimensions (mm)
42
Hanger Width (W) (mm)
W
220
235
300
>300
42
39 50 55 61 65 75 78 92
UH–39–220 UH–50–220 UH–55–220 UH–61–220 UH–65–220 UH–75–220 UH–78–220 UH–92–220
UH–39–235 UH–50–235 UH–55–235 UH–61–235 UH–65–235 UH–75–235 UH–78–235 UH–92–235
UH–39–300 UH–50–300 UH–55–300 UH–61–300 UH–65–300 UH–75–300 UH–78–300 UH–92–300
SEE HUH (PAGES 31-34)
OR
UH–MHE/ UZ–CLIP (PAGES 22 – 24)
100
UH–100–220 UH–100–235 UH–100–300
>100
SEE UH OR MHE PAGES
65
Height Suitability
326
326
326
292
292
292
266
266
266
251
251
251
232
232
232
217
217
217
UH–220 (To suit 220mm deep i–joists)
UH–235 (To suit 235 – 245mm deep i–joists)
UH–300 (To suit 300 – 302mm deep i–joists)
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
Universal Hanger UH (I–Joist Applications)
Standard Installation – I–Joist Header without Backer Block
See Page 21 For Installation Instructions
— Fill all red holes as indicated for this installation — No backer block required — No web stiffeners required* — Top tabs to be wiped over and nailed — Additional triangular holes into face only required for solid headers *Additional triangular holes into incoming joist only required for enhanced uplift. (for details see page 19)
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Depth (mm)
Header
I–Joist Header
Incoming
Uplift
(Depth Dependent Only)
Face
Top
Solid Flange
LVL Flange
220 235 300
8 8 8
2 2 2
4 4 4
3.97 3.97 3.97
11.13 11.89 11.89
12.94 11.79 11.79
Enhanced Installation – I–Joist Header with Backer Block
See Page 21 For Installation Instructions
SNAP OFF OPTION
— Fill all red holes as indicated for this installation — All nail holes filled into backer block (including triangular) — Backer block required to hanger side only (follow I–joist manufacturer’s guidelines) — No web stiffeners required when using same hanger/joist depth* — Top tabs to be wiped over and nailed or snapped off to give face fix only option
*Additional triangular holes into incoming joist only required for enhanced uplift. (for details see page 19)
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Depth (mm)
Header
I–Joist Header
Incoming
Uplift
(Depth Dependent Only)
Face
Top
Solid Flange
LVL Flange
220 235 300
18 18 22
2 (0**) 2 (0**) 2 (0**)
4 4 4
3.97 3.97 3.97
19.66 19.66 21.02
18.81 18.81 20.88
**No fixings required when using snap off option.
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
UH (I–Joist Applications)
Universal Hanger
Enhanced Installation – Solid Header
SNAP OFF OPTION
— Fill all red holes as indicated for this installation — All nail holes filled into solid header (including triangular) — No web stiffeners required when using same hanger/joist depth* — Top tabs to be wiped over and nailed or snapped off to give face fix only option
*Additional triangular holes into incoming joist only required for enhanced uplift. (for details see below)
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Depth (mm)
Header
Solid Header
(Depth Dependent Only)
Incoming
Uplift
GL (Min GL28h)
Face
Top
LVL
220 235 300
18 18 22
2 (0**) 2 (0**) 2 (0**)
4 4 4
3.97 3.97 3.97
19.69 22.16 22.16
18.65 21.58 22.17
**No fixings required when using snap off option.
Enhanced Uplift
— Fill all red holes as indicated for this installation — Fixings into the incoming joist are required to resist uplift — Increased uplift figures can be achieved by nailing the additional triangular nail holes into the incoming member – solid incoming or web stiffeners are required
Load Data
Hanger Depth (mm)
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
(Depth Dependent Only)
Incoming
Uplift
7.97
220 – 300
8
220 – 300MM
Near side
Far side
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
UH (I–Joist Applications) Universal Hanger
Sacrificial Stairwell Installation
— Fill all red holes as indicated for these installations — No backer blocks required — No web stiffeners required
Face Fix Option
Top Fix Option
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Depth (mm)
Header
I–Joist Header
(Depth Dependent Only)
Incoming
Uplift
Face
Top
Solid Flange
LVL Flange
220 235 300
8 8 8
2 (0**) 2 (0**) 2 (0**)
4 4 4
3.97 3.97 3.97
7.43 7.43 7.43
7.83 7.83 7.83
**No fixings required when using snap off option. 3.5 x 30mm multi–purpose wood screws may be used as an alternative fixing for temporary supporting hanger.
Installation Instructions
Face Fix Option
Top Fix Option
Face fix to top and bottom flanges using 8No 3.5 x 30mm multi purpose wood screws or 3.4 x 35mm square twist nails. Bend tabs forward and snap off. Once ready for stairs to be installed the deck can be cut and joists/hangers removed.
Face fix to top and bottom flanges using 8No 3.5 x 30mm multi purpose wood screws or 3.4 x 35mm square twist nails. Bend top tabs over joist top flange and nail using 1No 3.4 x 35mm square twist nail per leg. Once ready for stairs to be installed the deck can be cut and joists/hangers removed. Hanger to be rotated through 90 degrees to snap off at break line.
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
UH (I–Joist Applications) Universal Hanger Standard Installation Instructions – I–Joist Header without Backer Block
Stage 1
Stage 2
Stage 3
Stage 4
Nail top tabs into top flange of joist – 1No 3.4 x 35mm square twist nail per tab.
Wipe over top tabs to give a flush fit to the joist.
Position hanger against face of I–Joist with locating tab tight to underside of joist.
Face nail to top and bottom flanges using 8No 3.4 x 35mm square twist nails in total.
Enhanced Installation Instructions – I–Joist Header with Backer Block
Stage 1
Stage 2
Stage 3
Option 1
Option 2
Wipe over top tabs to give a flush fit to the joist. Nail top tabs into top flange of joist – 1No 3.4 x 35mm square twist nail per tab.
Bend top tab forward and snap off.
Position hanger against face of I–Joist with locating tab tight to underside of joist. Backer block installed as per I–Joist manufacturer’s guidelines.
Fill all round and triangular nail holes to header and backer face with 3.4 x 35mm square twist nails.
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
UH (I–Joist Applications)
UH/MHE With UZ–Clip Installation (to support 350 – 450mm deep I–Joists) Universal Hanger
UH–300 & UZ Clip – For Single Joists
MHE & UZ Clip – For Double Joists
Features & Benefits — Solution to support 350 – 450mm deep I–Joists with shallower UH/MHE hanger and UZ–Clip to prevent rotation and remove the need for installing time consuming web stiffeners
Available Sizes
Joist Depth (mm)
Hanger Width (mm)
39
50
61
65
75
78
92
100
350 400 450
UH–39–300 UH–39–300 UH–39–300
UH–50–300 UH–50–300 UH–50–300
UH–61–300 UH–61–300 UH–61–300
UH–65–300 UH–65–300 UH–65–300
UH–75–300 UH–75–300 UH–75–300
UH–78–300 UH–78–300 UH–78–300
UH–92–300 UH–92–300 UH–92–300
UH–100–300 UH–100–300 UH–100–300
Joist Depth (mm)
Hanger Width (mm)
122
130
138
144
150
183
198
350 MHE620–122–249 MHE620–130–245 MHE620–138–241 MHE620–144–238 MHE620–150–235 MHE620–183–218 MHE620–198–211 400 MHE620–122–249 MHE620–130–245 MHE620–138–241 MHE620–144–238 MHE620–150–235 MHE620–183–218 MHE620–198–211 450 MHE620–122–249 MHE620–130–245 MHE620–138–241 MHE620–144–238 MHE620–150–235 MHE620–183–218 MHE620–198–211
Flange Depth (mm)
UZ–Clip
36 39 45 47
UZ–35 UZ–38 UZ–45 UZ–47
UZ–Clip size dependent on flange size only and not I–Joist width – 1No UZ–Clip required per I–Joist (38 – 97mm wide)
The latest most up to date version will always be online and not in print or in downloaded pdf.
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UH (I–Joist Applications) Floors
Universal Hanger UH (300) & UZ–Clip – I–Joist Header with Backer Block or Solid Header
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Width (mm)
Header
Header
(Width Dependent Only)
Incoming
Uplift
Face
Top
Solid Flange I–Joist, LVL Flange I–Joist
39 – 65 72 – 100
24 24
0 0
2 2
2.00 2.00
12.49 16.90
MHE (620) & UZ–Clip – I–Joist Header with Backer Block or Solid Header
Load Data
Fixings (3.4 x 35mm)
Characteristic Capacity (kN)
Hanger Width (mm)
Header
Header
(Width Dependent Only)
Incoming
Uplift
Solid Flange I–Joist, LVL Flange I–Joist
Face
Top
122 – 198
24
0
2
2.00
30.58
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
UH (I–Joist Applications) Universal Hanger UH–300 & UZ–Clip – Installation
Stage 1
Stage 2
Stage 3
Fix UZ–Clip to top flange of supported member using: 2No 3.4 x 35mm square twist nails. 2No UZ–Clips required for double incoming.
Position hanger against face of I–Joist with locating tab tight to underside of joist. Backer block installed as per I–Joist manufacturer’s guidelines.
Offer incoming member into the UH hanger and fix to joist bottom flange/backer block and UZ–Clip to header member.
MHE & UZ–Clip – Installation
Stage 1
Stage 2
Stage 3
Fix UZ–Clips to top flange of supported member using: 2No 3.4 x 35mm square twist nails per UZ–Clip. 2No UZ–Clips required for double incoming.
Offer incoming member into the MHE hanger and fix to joist bottom flange/backer block and UZ–Clip to header member.
Position hanger against face of I–Joist with locating tab tight to underside of joist. Backer block installed as per I–Joist manufacturer’s guidelines.
The latest most up to date version will always be online and not in print or in downloaded pdf.
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Floors
Scan or click to view installation videos
UH (Open Web Applications)
Universal Hanger GB Patent 2497747
The UH hanger is designed for any joist to joist, joist to trimmer or joist to steel application. Features & Benefits — Elongated slots and unique snap off feature allows for height adjustment and face fix only option — One hanger solution for backer and backerless I–Joists — Rear location tab to assist with installation — Additional triangular fixing holes for increased performance on solid members — Suitable for connections to steel work – see pages 77 – 79
UKTA–21/0008 UKTA - 21/0008
ETA–20/0999
Material Specification — Galvanised mild steel – Z275
Fixings Code
Description
Box Qty
547389 141185
3.4 x 35mm Square Twist Nails – LOOSE 3.4 x 35mm Square Twist Nails – COLLATED*
500
2,500
*For use with Paslode PPNXi (or 3.5 x 30mm wood screw for sacrificial stairwell installation only)
Available Sizes
Dimensions (mm)
42
Hanger Width (W) (mm)
W
220
235
300
>300
42
39 UH–39–220 UH–39–235 UH–39–300 50 UH–50–220 UH–50–235 UH–50–300 75 UH–75–220 UH–75–235 UH–75–300 78 UH–78–220 UH–78–235 UH–78–300 92 UH–92–220 UH–92–235 UH–92–300 100 UH–100– 220 UH–100– 235 UH–100– 300 >100 SEE UH OR MHE PAGES
SEE UH (PAGES 35 – 41)
65
Height Suitability
326
326
326
292
292
292
266
266
266
251
251
251
232
232
232
217
217
217
UH–220 (To suit 219 & 225mm deep open web joists)
UH–235 (To suit 253 – 254mm deep open web joists)
UH–300 (To suit 304mm deep open web joists)
The latest most up to date version will always be online and not in print or in downloaded pdf.
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