Flat Roof Timber Joist Span

Strutting should be either.

Flat roof timber joist span.

Span tables for solid timber joists. Rafter and joist span faq. Although i think you can get 6 metre joists in 6 x 2. For timber floors between homes.

One row when the span of the joists exceeds 2 5m. Span calculator for wood joists and rafters also available for the android os. You def cant put a joint in the timber. Tables 1 and 2 in this chapter are derived from the trada technology ltd.

Maximum clear span of flat roof joists in metres for sc3 timber spacing between joists size of roof joist 400mm 450mm 600mm 47 x 97 1 84 1 81 1 74. Also available for the android os. Should refer to trada document span tables for solid timber members in floors ceilings and roofs excluding trussed rafter roofs for dwellings or ask your lbc surveyor for advice. Joists for that span would normally be around 9.

Eurocode 5 span tables for solid timber members in floors ceilings and roofs for dwellings 3rd edition. The section sizes are based on regularised als or cls timber. The lengths and sizes of joists vary depending on the species and quality of the lumber used. Herringbone type timber 38mm x 38mm.

For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine. Notches are not to exceed 0 125 of the depth of the joist and are to be located between 0 07 and 0 25 of the span from the support. Usually 400 450 or 600mm but any value can be used up to 610mm max 1 2 timber strength class and joist size automatically calculate sizes suitable for supporting the loads below. If you want 6 joists you need a steel midway.

This is the distance between joist centres. These span tables apply only to flat roof and roof with a slope of up to 10 degrees.