Open Web Roof Joist Span Table

Each load table was accompanied by notes and instructions covering assumptions and other important information.

Open web roof joist span table.

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. All trimjoist products are cambered to compensate for dead load deflections. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. Live loads of 40 psf assumed.

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. The spans are based on simple span joists. 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. Do not install them upside down.

Open joist is a revolutionary open web all wood floor truss engineered with superior strength and load carrying capabilities. Find span carts for open joist products. Dead load deflection is limited to l 360 and total load deflection is limited to l 240. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.

Open web steel joists k series. 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. No more custom made floor trusses. 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.

The maximum span is measured o c. 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. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Spans are based on uniformly loaded joists and include allowances for repetitive use members.

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. Of bearings and is based on uniformly loaded joists. Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.

Also available for the android os. Important notes on span tables.