Cullen Technical Guide 2025

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PFS Pre Formed Strap

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Applications can be found on pages 129, 131, 132 and 133

The PFS is an engineered strap that has been designed to provide enhanced performance and greater flexibility while laterally restraining floors and roofs. Part of the Cullen Gable Restraint System – Pg134 - 135 Features & Benefits — Typically used for lateral restraint in floor and roof applications — Exceeds performance of traditional 30 x 5mm strap — Restraint applications can be found on pages 131 - 133 Material Specification — 35 x 1.5mm Galvanised mild steel – Z600 or Z275 (with edge protection)

Engineered bend for increased performance

Approvals — CE/UKCA marked in accordance with EN845-1 — Meets NHBC Technical requirements — Meets Homebond technical requirements

Available Sizes

FLAT STRAP

Fixings — Dependant on application

F

Code

Description

Box Qty

547389 141185

3.4 x 35mm Square Twist Nails – LOOSE 3.4 x 35mm Square Twist Nails – COLLATED*

500

F

2,500

*For use with Paslode PPNXi

Dimensions (mm)

BENT STRAP

B

4mm Ø and 6mm Ø holes

35

1.5

Product Code F (mm) PFS–1000–F 1000 PFS–1200–F 1200 PFS–1600–F 1600 PFS–2000–F 2000

Product Code

F (mm)

B (mm)

50

PFS–900–100–B PFS–1100–100–B PFS–1500–100–B PFS–1900–100–B

900

100 100 100 100

1100 1500 1900

50

Load Data

Fixings

Performance

Characteristic Tensile Capacity (kN)

(3.4 x 35mm)

Built into 3.5N/mm 2 block work & nailed to min C16 grade timber**

8No

8.80

Flat Strap

n/a

10.80

**Tested in accordance with the requirements of EN846-4 (with a vertical precompression of 0.4N/mm2 to the top of the masonry specimen – equivalent to storey height of blockwork)

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140

Technical support 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk

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