- Lumber cut for Vertical Use:
- Lumber cut for Diagonal Use:
Planks, as shown in Figure 5, are generally 2 inches thick, but could also be 3 or 4 inches thick. Planks are used as flooring, roofing and decking, directly over and supported by rafters, joists, beams and girders.
Figure 5 - Planks
Posts, as shown in Figure 6, are vertical supports, usually short.
Columns, as shown in Figure 6, are vertical supports, longer than posts and are used to transfer horizontal loads down to the foundations.
Studs, as shown in Figure 6, are actually mini-columns. Studs are a series of slender structural members placed at small, regular intervals, as the supporting elements in load-bearing wood walls and partitions.
Figure 6 - Post, column & stud
Additional information on working with studs.
Bracing, as shown in Figure 7, is a piece of lumber applied to the frame on the diagonal to stiffen the structure. In modern construction this bracing is often replaced by use of plywood sheathing.
Figure 7 - Brasing
Bridging, as shown in Figure 8, is used in an “X” pattern between the joists to stiffen the floor. It can also be a solid piece of lumber the same dimensions as the floor joists.
Figure 8 - Floor joist cross bridging
Additional information on floor joist bridging.