Galvanised steel sub-frame creates the ideal maintenance-free base on which to build a deck.
WHY WE RECOMMEND STEEL OVER TIMBER
Many decks are built on a timber sub-frame, as this has always been the traditional material of choice – however there are a number of reasons galvanised steel sub-frame are superior to Wood.
BUILT TO LAST
Unlike timber, galvanised steel doesn’t rot, ensuring that your deck is built to last. Even treated timber, sitting in wet conditions, will soak up moisture from the ground beneath it, as well as from the deck itself.
NO ROTTING TIMBER
Because they’re hidden underneath uPVC deckboards, timber sub-frames are unable to dry out naturally and will instead ‘sweat’ – a process that will increase the rate at which the timber rots. As galvanised steel doesn’t absorb moisture and is treated so it won’t rust, you can rest assured your deck will be safe and secure for many years to come.
A further safety consideration is fire. Unlike timber, galvanised steel sub-frames comply with fire safety regulations, as any fire simply won’t be able to take hold and spread – keeping your family and belongings safe.
EASY TO FIT AND MOVE
Our sub-frame consists of just two components – a galvanised steel ‘I’ beam and its connector. The sub-frame is connected into a grid pattern and the deckboards are fitted directly to the joists.
This means that any deck built on our steel sub-frame may be extended, moved or repositioned with minimal risk of damage or disruption – unlike timber foundations, which are much more difficult to move.
And we’ve now made our sub-frames even easier to assemble. The steel is pre-slotted so no pre-drilling is required, and our recently launched PVCu sub-frame Nogging is a quick and cost effective way to connect all sub-frame joists with the minimum of preparation work.
The Nogging is pre-cut to suit the maximum 600mm centre between joists and has two screw ports to accept PVC screws through the slotted steel. The new Nogging is now standard on all decking kits. On an average wrap-round deck, these improvements could mean an installation time saving of more than 3 hours!
STRONG AND STURDY
When fitted onto the galvanised steel sub-frame, Our decking can withstand a load in excess of 500kg/m2, as verified by independent testing. In addition, ramps are built using the same strong and sturdy sub-frame and deckboards, so they will easily take the weight of a mobility scooter.