Cutting Trusses For Attic Stairs

Most common attic trusses for homes and garages are made with 2x4 s.

Cutting trusses for attic stairs.

While they look the same you probably didn t notice the subtle differences. Your parents roof rafters were probably made from 2x8 s and could have been 2x10 s or. Lay a 4x8 3 4 sheet of plywood on each end of the truss on the bottom chord spanning to the two trusses on each side of the one to be cut. Your attic floor and roof are probably framed with either trusses or with individual rafters and floor joists.

Do the same at the other end and then cut your ceiling to match the opening. We would like to install a fold down attic stair with a rough opening size of 25 5 in. Furnaces are often located in attic areas. Let s compare common roof trusses with the roof framing materials that were used in your parent s house.

The components cannot be cut or altered or you risk ruining the structural strength. Currently there is limited attic storage on a plywood subfloor on the bottom chords accessed via a small hatch in a closet. Replacement of these furnaces can be difficult and sometimes cannot be done without cutting or modifying a truss. This is done to hold the bottom chord from pushing the wall out.

X 54 in with the long dimension perpendicular to the trusses. Hello i am working on a project which i am using attic trusses to be used for a living space approximately 32 wide 10 12 pitch spaced 2 o c. Home owners sometimes will cut trusses to make more storage space in the attic or to do other modifications or remodeling. Our home has 2x4 roof trusses spanning 25 ft.