Standard Wood Roof Stud Dimension

1 1 2 inches by 3 1 2 inches for example dimensional lumber and modern building the term dimensional lumber came into popular use around the beginning of the 20th century to distinguish lumber cut to pre determined sizes from other types of wood such as corded wood for fireplaces.

Standard wood roof stud dimension.

I e 2x4 2x6 etc for simplicity. Although the standard spacing of roof trusses may be the same as that of rafters with 24 inch spacing being a common option the design of a truss may allow for the use of a lower grade of lumber than would be required for rafters with comparable spacing and span. Utility grade studs shall not be spaced more than 16 inches 406 mm on center shall not support more than a roof and ceiling and shall not exceed 8 feet 2438 mm in height for exterior walls and load bearing walls or 10 feet 3048 mm for interior nonload bearing walls. Actual sur faced dimensions conform with those in product standard ps 20 published by the american lumber standards com mittee appendix item 2.

Actual dimension is the size. The size height and spacing of studs shall be in accordance with table r602 3 5. In this case we butt two 54 inch wide sheets of drywall against the ceiling which gives us the same clearance at the bottom. The tables below provide both the nominal and actual sizes so many common north american lumber sizes.

A summary of these dimensions is set forth in. In my experience the precut studs for 9 foot ceilings always seem to come a hair long for some reason. However there is a difference between the nominal size what the lumber is referred to and the actual size. Metal roofs and pole buildings.