Open Web Roof Joist Span Table

For the proper handling of concentrated and or varying loads see section 2 3 in the code of standard practice for steel joist and joist girders.

Open web roof joist span table.

The maximum span is measured o c. Open web steel joists k series. Do not install them upside down. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel.

Important notes on span tables. Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. No more custom made floor trusses. Additional dead loads are due to various combinations of construction materials.

Loads for span increments not explicitly given in the load table may be determined using linear interpolation between the load values given in adjacent span columns. Each load table was accompanied by notes and instructions covering assumptions and other important information. Span calculator for wood joists and rafters also available for the android os. Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.

Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Spans are based on uniformly loaded joists and include allowances for repetitive use members. All trimjoist products are cambered to compensate for dead load deflections. Of bearings and is based on uniformly loaded joists.

These tables originally appeared in the steel joist institute specifications and load tables commonly referred to as a catalog beginning with the first edition published in 1932. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. For an in depth review of all of this information the sji suggests the current compilation of all years specifications and load tables 90 years of open web steel joist construction. Live loads of 40 psf assumed.

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Trimjoist is the marriage of an open web floor truss and a trimmable wooden i joist bringing the best features of each to the relationship. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. Find span carts for open joist products.

Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs. The spans are based on simple span joists.