Max. Live Load 30 lbs/ft2 (1436 N/m2) Maximum Span (ft – in) Nominal Size (inches) Joist Spacing Center to Center (inches) Lumber Grade 2 x 6 16 11′ – 4″ 24 9′ – 11″ 2 x 8 12 16′ – 6″ Click to see full answer. Similarly, how far can a 2×6 span?In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists.Likewise, what is the max span of a 2×4? With a 20 pound dead load, max span for a 2×4 is 5 feet. Also question is, how far can a triple 2×6 beam span? A triple 2×6 beam over a span of 10′ feet should be more than sufficient for normal deck loads.How far can a 2×6 Rafter span without support?The table states that 2 X 6 rafters spaced 16 inches on center (o.c) can span a maximum distance of 13 feet 5 inches. Another option are 2 X 8 rafters spaced 24 inches o.c.
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