How far apart should joists be for 5 4 deck boards?

16 inches
Decking Board Considerations Decking boards span from joist to joist. If you use 5/4 decking, joists must be no farther apart than 16 inches.

How far apart should joist be for composite decking?

Most composite decking materials, like Trex, AZEK, TimberTech and Fiberon composite decking, require minimum joist spacing for composite decking at 16″ on-center spacing for straight decking and 12″ on-center joist spacing for 45-degree angle diagonal decking.

How far apart should joists be for composite decking UK?

IMPORTANT: Spacing between the joists should be no greater than 300mm between each joist. Place the first piece of composite decking on the timber frame with the decking running perpendicular to the joists. The first piece of composite deck may be secured with end clips.

Should I Space 5 4 decking?

Conclusion of 5/4 decking spacing All decking needs to be spaced to allow for drainage. Ideally, the finish gap between deck boards will be between 1/8″ (3mm) and 5/16″ (8mm) but should not be installed at this spacing as 5/4 boards will shrink, increasing the gap.

How far apart should joists be on a deck Australia?

Decking joists are spaced 16″ apart from one another. Deck joist hangers should provide them with the needed stability to withstand heavy loads placed on top of them. Deck blocks are often used with deck boards to prevent expansion, but they are most effective when pressure-treated lumber is being used for flooring.

Can you lay composite decking on timber joists?

If you want to install a composite decking, you can put the composite decking on wooden joists. Wooden joists can provide reliable support for composite deckings if it is properly placed. When building a joist for your composite decking, it is vital to use quality wood material.

How wide is a 5 4 deck board?

Decking Planks

Nominal Size Actual Size
5/4 × 6 1″ × 5-1/2″
6/4 × 6 1-5/16″ × 5-1/2″

How far can deck joists span?

Depending on the size of the deck itself, whether your joists are spaced either 12 inches or 16 inches from the center, and the framing materials and size of deck boards used, deck joist spans may vary. With this in mind, the joist span can range between 6 ft, 10 inches, to 18 ft.