Cullen Technical Guide 2024

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SB Support Bracket

The SB support bracket is used to form a connection between timber bracing shelves and the adjacent trussed rafters. Features & Benefits — Unique design allows one part to accommodate any rafter width — Can be connected to timber shelf at ground floor level to ease with installation

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

Dimensions (mm)

Available Sizes

Product Code

Min Truss Width (mm)

Max Truss Width (mm)

80

SB

35

188

47

Installation Instructions

110

— PD 6693–1:2019 states that standard bracing details, suitable for fulfilling the functions of both roof and wall stability for spans up to 17m should conform to Annex E. — PD 6693–1:2019 Annex E states that a 1mm thick steel bracket should be fixed to both rafter and timber shelf using 10No fixings to conform with detail C3.

200

Stage 1

Stage 2

Nail support bracket to timber bracing shelf (min C16 grade) with 10No fixings per bracket (3.4 x 35mm square twist nails).

Single Rafter

Multiple Rafters

Position timber bracing shelf in–between rafters and nail to underside with 5No fixings per bracket (3.4 x 35mm square twist nails).

Position timber bracing shelf in– between rafters and nail to underside with 10No fixings per bracket (3.4 x 35mm square twist nails).

Wipe the support bracket round the rafter and nail into the side of the rafter with 5No fixings per bracket (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.

119

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

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