Framing Floor Details

Conventional wall stud framing wall studs are spaced either 16 or 24 from center to center.

Framing floor details.

Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. Chapter 5 floor framing 19 factors in design 19 recommended nailing practices 19 posts and girders 20 girder joist installation 23 wood sill construction 23 floor joists 23 bridging 29 built up subfloor other29 floor framing at wall projections 31 page chapter 6 wall framing 31 requirements 31 platform construction 31. Details for conventional wood frame construction. Key differences in fire ratings for construction types iiia iiib va exterior wall framing frt frt non frt exterior wall fire rating 2 hr 2 hr 1 hr floor assembly fire rating 1hr 0 hr 1 hr fire wall rating 3 hr 3 hr 2 hr.

All framing sections should include enlarged views that detail roof and floor connections as well as lumber and footing sizes. To frame a floor that s 12 feet 3 7 m x 18 feet 5 5 m you would need 4 12 ft 3 7 m sill plate boards 4 18 ft 5 5 m rim joist boards and 9 18 ft 5 5 m main floor joists. At most home improvement centers you can also have your lumber cut to the desired specifications when you order it. Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters.

Wood construction data 1. The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members. There are many materials you can use for framing a floor. Roof and floor framing span tables.

A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. More details will be uploaded periodically as we finish upgrading to our new website please note that any reinforcing shown is for illustrative purposes only. These standardized layouts result in the least cutting and waste of floor ceiling and wall materials. Building plans using the floor foundation and or roof framing plans see figure 2.

Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. The details were adapted from figures in the apa publication the advanced framing construction guide form m400 which highlights construction. With both platform and balloon framing wall studs and ceiling and floor joists occur every 16 or 24 inches measured from center to center. For information on size and spacing of rafters ceiling joists or floor joists refer to handout.