You ll also need to know the joist spacing you are planning to use most commonly 12 16 20 or 24.
Composite decking 16 centers.
Composite decking is virtually maintenance free but it carries a higher cost than pressure treated or cedar lumber.
Before building a composite deck always read the installation instructions from the manufacturer paying special attention to the required joist spacing for composite decking.
Most composite and pvc decking brands like trex and azek recommend a minimum joist spacing of 16 inches oc.
4 deck footings not deep enough.
When replacing the existing boards with composite decking on a deck with 24 inch frame spacing you will only need to add joists 12 inches on center between existing joists.
Deck joist spacing should never exceed 16 on center with the exception of max deck boards which allow for maximum 24 on center.
For a more rigid feel 12 or less may be preferred.
Composite decking is a great choice vs.
Most composite decking materials like trex composite decking require minimum joist spacing for composite decking at 16 on center spacing for straight decking and 12.
Remove all unmarked joists and rehang at 12 inches on center.
For decks with 16 inch spacing measure and mark each joist that is at 48 inches.
The good news for homeowners is that unlike most composites duralife hardwood composite decking products can be installed between 20 o c.
12 or 16 lengths.
Another common mistake that should be avoided is improper installation of concrete footings.
People choose wood plastic composite wpc or even plastic lumber pl over wood because they want the finished project to.
If you plan to install your decking at a 45 degree angle your joists may need to be 12 inches apart.
Some brands like weardeck let you get away with more reinforced with a layer of fiberglass on both the top and bottom weardeck boards easily allow for spans of 24 inches oc.
Wood for a variety of reasons.
If you re planning to replace old wood decking with pvc or composite measure the deck joist spacing first.
On center at 90 to 16 o c.
Newtechwood ultrashield naturale magellan 1 in.
Peruvian teak solid with groove composite decking board 49 pack model us01 16 n tk 49 3.