Max Span For 2x6 Roof

Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.

Max span for 2x6 roof.

1 quality 2 6 floor joist made from southern pine with a maximum load of 40 psf at standard 16 inch spacing is 10 feet 9 inches according to the international residential code. The type of wood that is being used often effects what length is available. The typical length found in u s. Yes a 2x6 is too small for that span 2x6 will span about 11 you would need 2x10 s for that span with the low pitch if you get a wet snow you might be in trouble.

Surveyors span tables for designing roof rafters. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Also available for the android os. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

Span calculator for wood joists and rafters also available for the android os. Surveyors and structural engineers utilise data from tables below to help calculate the correct size strength and centres of roof timbers for the required spans and loadings. Joist breadth 47mm. The maximum span for a no.

For pitched roofs flat roofs and ceiling joists. The length or span of a 2x6 framing stud ranges from 84 inches to 120 inches. There are six lengths that 2x6 studs are typically cut to during processing at a lumber yard. This table agrees that 10 12ft is the max span for typical grade lumber at typical spacings for a 5psf dead load.

When we break this down the variables determining floor joist span are joist spacing load wood species and lumber quality. Span is clear span between supports. If this calculator from the american wood council is to be believed and if my assumptions about your materials and load are correct the max span is about 10ft for a pine 2x6. Flat roof joists assumptions at 400mm centers supporting permanent load excluding self weight of joists up to 50kg m2.

Supporting imposed load for access and repair only.