How To Build Roof Rafters For A Garage

The first step of the project is to install the bottom rafters to the frame of the garage.

How to build roof rafters for a garage.

Cut it to the length you require and add the plumb cut to its ends. The roof rafters provide integral structural support to the roof. Place the rafters every 24 on center if you want to get a professional result. The first thing to determine is the pitch your roof will have and the span your roof needs to cover.

As you can see in the image you need to cut them at the right size and secure them to the top plates with galvanized screws after drilling pilot holes. This plumb cut should be a 45 degree angle cut. Add the total square footage of wall area less the garage door opening and roof area including the overhangs and divide that by 32 to give you the total number of sheets of sheathing you ll need. The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut which itself comprises 2 different cuts where the rafter meets the building s wall and the tail cut at the base of the rafter.

Insert construction screws every 2 3 inches 5 1 7 6 cm through the holes in the face of the plate and use an electric drill drive the screws deep into the wood. Building installing roof rafters. So know the number of the roof trusses you ll need then double the number for you to acquire the number of the rafters you ll need when building the roof trusses. Then flip it over and press it firmly into place over a joint between two truss beams.

For example if your roof is 24 feet long you can have a 4 12 roof pitch. Cut the rafters from 2x4 piece of wood. How to build a shed roof step by step. When you cut the rafters you ll need to make 3 separate cuts.