How far can a 2×10 ceiling joist span without support

How far can a 2×8 ceiling joist span without support

How far can a 2×6 ceiling joist span without support

How far can a 2×4 ceiling joist span without support

What is the maximum span of a 2×8 floor joist?

What is the maximum span of a 2×12 floor joist?

What is the maximum span of a 2×10 floor joist?

How many floor joists for 10′, 12′, 14′, 16′, 18′, 20′, & 24 foot deck