All floor joist tables start with 2X6 lumber. If you use awc calculator 2x4 can span 6'2 with L360 deflection for decks 40lb LL. Span For 2 X 4's?
Check maximum deck joist span first before lumber prices are rising and therefore it is more common to see 5/4”x6 deck boards that should not span more that
The dimensions of the framing, the type of wood the framing is made from, Gillespie, Evan. Recommended Beam Joist Spans for Deck Framing.
Build a strong deck floor. Learn the correct decking span for your deck to eliminate bounce.
Table 3 Recommended Spans for spaced deck boards Spans in Inches Laid Flat Laid on Edge 5/4x4 5/4x6 2x4 2x6 2x4 16 16/24** 16 16/24** 48 **Although 24 inches is a safe span, undesirable deflection or springiness may occurr.
The 2015 IRC includes a new table R507.5 Deck Joist Spans for Common Lumber Species. The table makes it easier for deck builders to accurately size deck joists and for inspectors to check decks for adequate framing.
My current deck flooring is done with 2x6x10' boards, Which is better for deck flooring: Knee brace alternative to support 12' 2x4 span for single tree
Can I get away with 5/4“ cedar decking across a 24” span in a The 2x4 or 2x6 decking is likely based on the Suggest that you use tongue groove deck boards .