Cutting Trusses For Attic Access

Our home has 2x4 roof trusses spanning 25 ft.

Cutting trusses for attic access.

In some cases the ladder may fit into an existing attic access hatch. One use of trusses is for the support of a roof. Homeowners should avoid cutting or modifying their roof trusses. I asked him if any of the joists were actually part of a truss and the answer was oh yeah.

Unfortunately it is common to see trusses which have had webs and chords cut to accommodate attic access skylights or hvac ductwork. Do the same at the other end and then cut your ceiling to match the opening. You can easily cut your ceiling joists and use the off cut if big enough to but end where the cut was and fix appropriately on the two adjoining joists trusses whatever. These trusses are usually engineered by a structural engineering company in order to carry a specific roof load.

Attic trusses have a rectangular shape inside each truss. Where possible choose a size and location for your attic ladder that allows it to fit between existing ceiling joists or trusses. Attic ladder kits are made to fit between existing framing in the ceiling that is the floor of the attic. X 54 in with the long dimension perpendicular to the trusses.

I remember on one house he told me that you never ever ever ever cut a truss. Just last night i was talking with an associate who picked up a small job cutting in an attic access pull down door and placing a bunch of sheets of plywood on the ceiling joists. While they look the same you probably didn t notice the subtle differences. We would like to install a fold down attic stair with a rough opening size of 25 5 in.

Currently there is limited attic storage on a plywood subfloor on the bottom chords accessed via a small hatch in a closet. A few cut trusses spaced two foot on center don t necessarily lead to catastrophic roof failure because the roof acts like a large diaphragm and because partition walls if any below usually pick up some. When a truss becomes damaged cut or modified there is a. Your parents roof rafters were probably made from 2x8 s and could have been 2x10 s or.

Trusses are similar to roof rafters. If the roof slope is steeper than 9 inches in 12 inches of run it doesn t take much width to end up with a nice room 12 feet wide with an 8 foot. Let s compare common roof trusses with the roof framing materials that were used in your parent s house. The sad fact is your builder could have installed attic trusses over this garage for just slightly more than what the existing trusses cost.