Roof Deck Span Load Table

Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

Roof deck span load table.

View joist rafter tables. The species of lumber size of lumber and the load it carries. For more information regarding canam steel deck please refer to the steel deck or contact our experts by phone at 1 866 466 8769 or online. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

Our new interactive deck tools provide the fastest way to generate your load tables and diaphragm designs for roof composite and form deck. Load tables are calculated using section properties based on the steel design. Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans. Two inch nominal thickness allowable roof load limited by deflection.

Building codes for residential decks only require 40 psf. Table 9 1 in span tables for joists and rafters figure 5 gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1 5 inches. The tables permit a bearing length of up to 3 5 inches but since 1 5 is probably the worst case that you. Not in excess of l 240 of the span.

Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. All information and. Roof deck maximum loads. Three and four inch nominal thickness.

The following load span tables apply to apa trademarked structural use panels qualified and manufactured in accordance with apa prp 108 performance standards and qualification policy for structural use panels form e445 voluntary product standard ps 2 04. Roof deck maximum spans. A dead load of 10 psf has been included. Beam span maximums are based on a maximum anticipated live load.

Check out our newest deck tools. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Roof load limited by bending. Thickness shown in the steel deck institute sdi design manual.

Loads shown in the shaded areas are governed by the live load deflection. Simply input your project data and our tool will customize your load tables or diaphragm designs from among more than 73 000 permutations.