Cutting Trusses For Attic Stairs

Don t modify cut wood trusses.

Cutting trusses for attic stairs.

If you really want to modify the framing of your attic and roof then consult with a licensed professional structural engineer. Cutting roof trusses is possible but a structural engineer must design the plan for the truss modification to prevent roof collapse. I wouldn t cut any trusses especially the bottom chord under tension holding the outside walls from spreading and the truss together. Head off the truss to the others with double 2x10 as normally done for the floor load and sheeth the floor.

Replacement of these furnaces can be difficult and sometimes cannot be done without cutting or modifying a truss. I have never built a staircase to attic trusses only drop down stairs but i am planning on leaving one truss out and doubling the ones to ether side to create a 4 opening. 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. 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.

Home owners sometimes will cut trusses to make more storage space in the attic or to do other modifications or remodeling. Without the continuous bottom chord you will have two 1 2 trusses though they wouldn t be trusses just triangles. If you live in a house with engineered manufactured trusses then don t mess with them. This is done to hold the bottom chord from pushing the wall out.

Furnaces are often located in attic areas. My recommendation is really simple. Looking to take advantage of some open space in our attic and want to install an attic ladder. 2 how much weight could the ceiling joist hold.

Never cut any structural member of a truss. Before i do can anyone help me answer the following questions. Trusses span out to out not out to an inside wall unless engineered that way. The building code irc r802 10 4.