It is recommended that trusses are spaced 12" or 16" on center to be structurally sound. To install a roof vent or AC you will need a least a 14"x 14" opening in the roof.
Dimensions: 1 1/2"D x 4 1/2"H x 94 1/2"W
4 1/2" Rise in the middle. Weighs 5 lb
Article number: | 2x3R |
Availability: | In stock (140) |
2x3x8 Construction lumber.