2X12 Stair Tread Span. I feel fairly confident 3' would be ok, but not sure about any wider. The load supporting requirements for stair treads are more severe than for the rest of the deck because always check the maximum span for your decking material as it applies to stair treads. Look up stair tread depth code in your specific state.
Can i safely span 33.5″ with 2×10 doug fir treads?
A wide variety of structural stair treads options are available to you, such as project solution capability, usage, and warranty. Can i safely span 33.5″ with 2×10 doug fir treads? 8068 2 1/2 thick stair treads are available in several different wood species types and finishes. Shop through a wide selection of stair treads at amazon.com. The tread can be composed of wood, metal, plastic, or other materials. The building code (irc, r311.7 stairways) is strict regarding stair layout and includes the most open stringers are cut from 2x12 stock, either dimension lumber or the lvl equivalent. I will post a photo tonight to help with reference. 2x12 stair treads cracking inevitable?
