Unequal Pitch Hip Roof Calculator

To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides.

Unequal pitch hip roof calculator.

Hipdrop tan backingangle 1 2 hip thickness hip drop minor side if the hip is not backed this is the amount to lower the seatcut of the hip to have the corner edge of the hip plane in with the sheathing. The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. Pitch common unit runs at 12 rise pitch common unit lengths at 12 rise 1 12 pitch common unit run 144 00000 1 12 pitch common unit length 144 49913 2 12 pitch common unit run 72 00000 2 12 pitch common unit length 72 99315 3 12 pitch common unit run 48 00000 3 12 pitch common unit length 49 47727 4 12 pitch common unit run 36 00000 4 12 pitch common unit length 37 94733 5.

Determining the slope and skew angles related to hip and valley beams can be a challenge made even more difficult when the roof slopes on each side if the hip or valley are different. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. This slope and skew calculator makes it easy by performing all of the necessary trigonometry for each hanger condition in the roof. All formulae are below the calculator.

Select the following information by using the drop downs to enter values in feet and inches. There are lots of things to think about and consider when taking on a hip roof style so having a reliable all in one hip roof calculator is going to be very useful for this job. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same.