What Are Purlin Cleats?
Purlin cleats are small steel brackets that connect timber purlins and side rails to the steel frame of a portal frame building. Purlins run horizontally across the roof between frames, supporting the roof sheeting. Side rails do the same job on the walls. Without cleats, there’s no way to fix the timber to the steel.
Cleats are shop-welded to the rafter or column before the steelwork goes to site (except bolt-on types, which are fixed on site). On site, the timber purlin is bolted through the cleat using coach bolts.
Single vs Double Cleats — Which Do I Need?
Single cleats (LH or RH) support the purlin from one side only. They’re used at intermediate frames where purlins lap over the top of the rafter. The left-hand and right-hand versions are mirror images of each other, you need both to support purlins lapping from alternating directions. Check your purlin layout drawing to confirm which hand goes where.
Double cleats support the purlin from both sides of the rafter web. They’re used where two purlins butt together at a frame (rather than lapping), or at positions where higher wind or snow loads require a stronger connection.
Purlin Cleat Fixings
Timber purlins are bolted to cleats on site using M12 coach bolts. You’ll need one coach bolt per cleat. We sell M12 coach bolts individually, order them alongside your cleats to keep everything in one delivery.
Why Buy Cleats From Us?
- From £0.86 each — trade prices with no minimum order
- Laser-cut steel — accurate profiles, clean edges, consistent quality
- CE-marked — compliant with UK construction product regulations
- Next-day dispatch — order before 12pm for same-day dispatch
- Buy exactly what you need — single cleats, doubles, side rails, all sold individually
Not sure which cleats you need or how many? Send us your purlin layout drawing on WhatsApp and we’ll give you a full count.
Delivery Information
Next-Day Dispatch
Orders placed before 12pm (Mon–Fri) are dispatched the same day for next working day delivery (subject to courier availability).
Standard Delivery Cost
Shipping is calculated at checkout based on weight. Depending on weight or order we will send components in boxes or pallet delivery.
Packaging
All components are securely pallet-wrapped and labelled, ensuring safe and tidy arrival on-site.
Order Tracking
You’ll receive an email with tracking info once your order leaves our workshop.
Returns
We supply components made to spec, if you’ve ordered the wrong item or something’s arrived damaged, just let us know within 5 working days and we’ll sort it.
For full details, see our Returns Policy.
