Measure A Simple Gable Roof

Remember it doesn t have to be to scale or look pretty.

Measure a simple gable roof.

Putting it together is relatively straight forward if you have basic carpentry skills and use precise measurements. It does have to contain all the straight lines of your roof and an accurate measurement of. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

Tape measure preferably 100 feet long you can get one at home depot or lowe s for about 17 tax and if you don t. 8 inches and you have an 8 in 12 pitch. Just multiply the length and width dimensions. Roughly draw out your roof on a piece of paper.

1 roof square 100 square feet. The hip style roof is in blue and the gable style roof is in red. Select the style that best matches your project and move on to step 1. To measure a roof you will need the following tools.

L 30 feet h 12 feet 30 12 2 180 square feet. Be sure to find the area of any dormers on your roof as well. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. You will need the level to get the exact roof pitch.

Pitch measurement method 1 1. This sizing guide for roof rafters will help determine what you need for your small project. Weather you re building a shed roof or adding a dormer to your second story it is important to choose the proper size rafter. Outside of the u s a degree angle is typically used.

Each geometric plane is a rectangle so we can use our formula for a rectangle base x height. If this distance measures 4 inches you have a 4 in 12 pitch. Make a note of the square footage of each square or rectangular section on your diagram. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.

To build your gable roof you ll need wooden boards cut into joists rafters supports and a ridge board in addition to sheathing felt paper and shingles. If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2. If you look at a gable roof you can see that it is comprised of two basic geometric planes that meet at the top ridge. A gable roof is a simple symmetrical triangular roof.

The length l times the height h of a triangle is twice its area a2. Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.