How To Make Hip Roof Rafters

The roof rafters provide integral structural support to the roof.

How to make hip roof rafters.

Includes result for hip valley factor slope factor and the roof slope in degrees. Common rafters in a hip roof that meet at right angles on either side of the hip rafter. Pitched roof rafter lengths for gable hip lean to roof construction how to calculate the length of common roof rafters you are ready to set out and cut the common rafter lengths as soon as the wall plates have been squared levelled and fixed strapped down onto the brickwork. Depending on the size of the roof most hip roofs will have 4 6 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters.

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. If the wall plates are all square of equal lengths then the hipped rafters would form a pyramid shape like the picture above normally a roof is rectangle and there are more yellow common rafters. Measure the distance between the angled hip rafter and the top of the wall at 20 in 51 cm increments and cut jack rafters to fit. You ll use a king rafter anytime you construct a hip style shed roof.

Hip jack rafters are the shorter rafters that connect to the hip rafters. Hip rafters are the diagonal rafters that span from the ridge at the top down to the corners of the roof. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement.

Since the hips connect diagonally to the ridge board the rafters close the edges of walls on either side of the hip rafters will be shorter. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.