Eased edges
A deck is only as strong as its foundation. For a patio built from Ipe decking boards, these 40 x 60mm Ipe subframe joists are the only correct choice. Why? Because they share the exact same contraction and expansion rates as the Ipe decking boards themselves. This prevents mechanical stress on the screws and guarantees a perfectly straight deck for the next 25+ years.
Boasting durability class 1, these joist beams are fully rated for direct contact with the ground and moisture, which is absolutely vital for the subframe construction of any outdoor patio deck.
The 40 x 60mm dimension is the industry standard for a stable decking subframe. For the finest results, we recommend following these trade guidelines:
For a high-end patio deck finished with premium Ipe decking boards, choosing the right subframe joist is critical. Our hardwood Ipe beams fall into durability class 1, matching the decking boards themselves. This ensures that the entire structural frame shares an identical lifespan of 25+ years. The recommended, solid size configuration is 40 x 60mm.
Utilising matching Ipe subframe joists beneath Ipe decking boards prevents the sub-structure from rotting away before the patio surface does, which is essential to secure the structural integrity of your build.
A stable deck starts with the correct spacing margins between the joists. When working with 21mm thick Ipe decking boards, we recommend a center-to-center (c-to-c) layout span of no more than 40 to 45cm.

Ipe contains natural organic compounds that can corrode standard hardware screws. Therefore, we advise exclusively using our tested stainless steel (SS) decking screws in combination with your Ipe subframe joists and boards.
The estimation tool computes your needed subframe bills of materials automatically. Use our online decking calculator to instantly compute the correct volume of Ipe subframe joists, screws, and matching Ipe decking boards required for your footprint, automatically accounting for cutting waste.
All garden wood products Free delivery on orders over £4,300.
Steel doors are all made to measure, with a delivery time of approximately 8 weeks. Oak or Douglas barns, verandas or shelters are all made to measure, for which the delivery time is approximately 8 weeks. We deliver all products with a large truck. All products are well packed in plastic so that they are weather resistant. Read the warranty terms and conditions before placing your order. It is important to know what you can make with our products and it is equally important what not to do. As a result, you will enjoy your home-made project for longer. We only provide warranty if you have fulfilled all the warranty conditions. Do not use floor boards near a swimming pool that contains chlorine or salt water. Fixing materials are made of stainless steel (clips and screws) the chlorine and salt attack the stainless steel, causing corrosion. There is a greatly increased risk that the mounting clips and screws will corrode and break as a result. As a result, the wood is no longer clamped and will spontaneously start to work and deform. Read the warranty conditions carefully before purchasing. Our dealer in Hartlepool has a showroom where you can see our decking and fencing.