Maximum Joist Spacing for Decks Southern Pine Deck Joist Maximum Spans Wood- 1 ¼ Thick 16 O 12 O Determine the decking board thickness and direction to determine joist spacing. Table 1:1 2. Decide whether the joists will cantilever over or not. Then using the lumber size of joists and the joist
The below deck span table is from the American Wood Councils prescriptive deck design guide based on the structural studies on decks at Virginia Tech and Washington State.
Find out the minimum size floor joists you need for building decks, sheds, or room additions for different types of wood on both 16" and 24" spacing. Find out the minimum size floor joists you need for building decks, sheds, or room additions for different types of wood on both 16" and 24" spacing. 32 Comments on Floor Joist Spans for
wood decks that are attached to the house to resist lateral forces. R507.2.3 2. Overall deck length shall be equal to or less than spacing. Joist span, L, must be less than or equal to allowable joist span, L J. Overhang length is the lesser of allowable overhang, L O
Deck Board Joist Spacing. Without this spacing, your ipe deck can buckle as the wood expands. Ventilation. Proper ventilation is vital. If water gets underneath the deck, the underside of the boards will stay wet, but the topside will dry and shrink, causing the boards to cup.
Decks How to Buy Deck Lumber. They have a wimpy feel underfoot even with closer joist spacing. Length: When possible, buy decking that can run the full length of your deck. All lumberyards and home centers carry 16-ft. deck boards, but many also stock or can order 20- and 24-ft. boards, though they may cost more. Comparing Wood Deck