Structural Wood Floor Framing Plan

Designing with wood joist span tables.

Structural wood floor framing plan. If built up wood posts are being used the width of the post needs to be as wide as the beam that it is supporting. Fixed and considered permanent. Design of wood framing 5 1 general this chapter addresses elements of above grade structural systems in residential construction. Department of housing and urban development s residential structural design guide.

At this point we ll focus on traditional wood framing for an example house in the next part of residential structural design. Our 24 x 26 house floor framing floor beams and posts would now look like the image below. Live load s are produced by the use and the occupancy of the building e g. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.

Therefore this chapter focuses on structural design that specifies standard. Figure 10 20 is an example of a roof framing plan for a wood frame roof. Structural assemblies such as the roof floors and walls are generally constructed with nominal 50 8 mm 2 inch lumber members ranging in nominal depths from 101 6 to 304 8 mm 4 12 inches and sheathed with structural wood panels for stability and. 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.

Deflection is the bounce or give in a floor. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. The details were adapted from figures in the apa publication the advanced framing construction guide form m400 which highlights construction. Wood construction data 1.

The roof framing plan is drawn in the same manner as the floor framing plan. Such methods use a 4 foot design module which governs a 16 inch spacing of joists. For a thorough discussion of building structural design see the u s. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.

Some newer homes have manufactured i beam shaped joists. As discussed in chapter 1 the residential construction material most commonly used above grade in the united states is light frame wood. Details for conventional wood frame construction. The prevailing system used for the construction of single family homes in the usa is platform framing using light wooden dimensional lumber.