Shed Roof Dimensions

To calculate a shed roof select shed from the roof type dropdown list or click on the corresponding button on the toolbar to calculate a shed roof.

Shed roof dimensions.

Rafter is the beam supporting the building. That gives us rise over run of 2 4. The preview window displays a dimensioned side view of the shed roof. 8 8 8 12 8 16 and 8 20 sizes available.

This means that for every 12 horizontal run you must have at least 3 of rise. If you re planning on building a gable roof with a pitch of 4 12 for a shed that s 200 inches 510 cm wide your rafter boards would need to be 105 3 inches 267 cm long on each side. Find its length with our online rafter length calculator. A useful shed roof rafter calculator to calculate the rafter length for the given dimensions of the roof of the building or a structure.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. The advantages to sourcing this product through tuff shed include quicker turnaround time delivery of the units fully assembled and the ability to purchase in single unit quantities. Anything less than this will ultimately result in a roof that leaks if you plan on putting shingles on it. You want the ridge of the gable to be 2 feet.

Now let s say you want to build an 8 10 shed with a gable roof. Since the ridge of our gambrel roof will run the length of the shed down the center that leaves us with about 4 horizontal feet from the ridge to the outside edge of the shed.