VRS Vertical Restraint Strap Applications can be found on pages 11 and 13
RST Restraint Strap Twist
The VRS is an engineered strap that has been designed to provide a convenient and secure method of fixing wall plates to timber and masonry walls.
The RST is a high performance strap which can be used to resist uplift.
Applications can be found on pages 11 and 13
Part of the Cullen Gable Restraint System – Pg13
Part of the Cullen Gable Restraint System – Pg13
Features & Benefits — Unique geometry allows a fixing on two planes without the clash issues of standard twist straps — Suitable for timber frame and masonry walls — Can be used independently or in addition to truss clips/framing anchors/hangers — Also a suitable strap for providing lateral restraint to timber gables (see page 13) — Lighter than traditional twist straps reducing manual handling risk — Achieves greater tensile capacity before reducing centres enabling us to outperform competitors’ solutions — Installation videos available for all detailed applications
Features & Benefits — Engineered to achieve the same performance as a traditional 30 x 2.5mm strap — Thinner profile compared to traditional tie down straps - reducing manual handling risk — Installation videos available for all detailed applications
RST–1
Material Specification — 30 x 1.2mm Galvanised mild steel – Z600 Approvals — CE/UKCA marked in accordance with EN845-1 — Meets NHBC Technical requirements
Engineered bend for increased performance
Material Specification — 30 x 1.2mm Galvanised mild steel – Z275
Available Sizes
Fixings Dependant on application.
RST–2
Fixings To be specified by building designer
B
Dimensions (mm)
70
4mm Ø and 6mm Ø holes
Dimensions (mm)
RST–3
150
Available Sizes
Y
35
F
Dimensions (mm)
35
Product Code
RST-1
4mm dia fixing holes
X
Y
Z
70
75
RST–1 RST–2 RST–3
405 848
205 275 275
200 573
RST-2
1350
1075
75
30
1.2
Fixing Hole Qty
6mm dia fixing holes
RST-3
Product Code
4mm Ø
6mm Ø
Y 6 8 8
Z 3 8
RST–1 RST–2 RST–3
X
Product Code VRS–900–100
F (mm)
B (mm)
15
900
100
Z
Load Data
Load Data
Fixings (3.4 x 35mm)
Performance
Tensile Capacity (kN)
Characteristic Tensile Capacity (kN)
Characteristic Tensile Capacity (kN)
Performance
Wall Plate (3.4 x 35mm)
Timber Stud (3.4 x 35mm)
Strap only
7.50
11.80
Fixed to 3.5N/mm 2 block work & nailed to min C16 grade timber wall plate*
2
n/a
4.80
Performance
Fixings (3.4x35mm)
Characteristic Capacity (kN)
3 4 5
5.69 6.23 6.76
Nailed to timber stud & wall plate (min C16 grade)
2
8
4.80
Strap attached to truss/solid timber (Min. C16)
*Fixings into masonry wall to be specified by building designer
The latest version of the technical guide will always be the digital format on our website.
The latest version of the technical guide will always be the digital format on our website.
6
Technical support: 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk 7
Technical support: 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk
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