Wood Stud Wall Span Tables

A habitable attic assembly supported by 2x4 studs is limited to a roof span of 32 feet.

Wood stud wall span tables.

Where the roof span exceeds 32 feet the wall studs shall be increased to 2x6 or the studs shall be designed in accordance with accepted engineering. Wall 16 and plywood siding 16 o c. Shall be permitted as an alternate to panels with a 24 16 span rating. Span tables use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Consider using woodworks sizer software or forte software. The following span tables are indicative of some of the spans required for domestic floor joists where c16 and c24 strength classes are used. Equally important are height of the wall the frame spacing and the maximum span of the surfacing material. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

For wall systems higher then 10 feet engineering is required. Prostud limiting height charts new clarkdietrich itools structural stud lookup tool interior wall heights w structural framing interior. Table r602 3 5 size height and spacing of wood studs. Selection of steel stud size is usually derived from limiting height tables based on the capacity of the steel and the allowable deflection of finis h surfaces.

Assume you are using wood irc code requirements for wall systems limits on size and spacing. Plywood siding rated 16 o c. The limiting heights tables included in the gypsum construction. Interior framing use iprostud in clarkdietrich itools to quickly lookup the interior framing system you need.

Shall be used with studs spaced not more than 16 inches on center. They refer to a dead load of not more than 0 5kn m 2 excluding the weight of the joist and an imposed load not exceeding 1 5 kn m 2.