Rafter Layout For Hip Roof

Hip roofs are constructed with four rafters that usually meet on a ridge board that is situated at the middle portion of the roof.

Rafter layout for hip roof.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. Whereas in the case of square buildings hip roofs are more commonly.

Half building width minus 1 2 ridge thickness. Roof battens lath hip end side roof battens lath main roof side wall plate or inferior purlin cut corner connection roof. S1 s4 s13 s16 s17 s20 s25 28 hip rafters layout. The hip end jacks tab displays a dimensioned side view and top view of the hip roof jack rafters for the hip end side of the hip rafter on an irregular hip roof.

Hip roof framing plan truss layout jack rafters layout left side. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Allow for ridge thickness when determining rafter run to outer wall. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.

The roof rafters provide integral structural support to the roof. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. If we consider the rectangular shape of most buildings then hip roofs will be constructed with two triangular sides and two trapezoidal sides. See rafter run to outer wall calculator below.

As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. The drawings are representative of all of the hip end side jack rafters and do not include the overall lengths which are available on the layout tab. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.