Such methods use a 4 foot design module which governs a 16 inch spacing of joists.
Structural wood floor framing plan.
The roof framing plan is drawn in the same manner as the floor framing plan.
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.
Design of wood framing 5 1 general this chapter addresses elements of above grade structural systems in residential construction.
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.
Designing with wood joist span tables.
The image below does not show that the floor beam is also supported on its ends by the basement exterior structural walls.
Therefore this chapter focuses on structural design that specifies standard.
Some newer homes have manufactured i beam shaped joists.
Details for conventional wood frame construction.
Our 24 x 26 house floor framing floor beams and posts would now look like the image below.
A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.
Rafters are shown in the same manner as joists.
As discussed in chapter 1 the residential construction material most commonly used above grade in the united states is light frame wood.
Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.
For a thorough discussion of building structural design see the u s.
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.