12 Foot Shed Roof Truss Design Calculator

Includes result for hip valley factor slope factor and the roof slope in degrees.

12 foot shed roof truss design calculator.

Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Now that you know how steep you want your shed roof the pitch and how much overhang you want you can jump right to this shed roof truss design calculator. Before you input your values be sure to account for the extra 4 on each side for the span of your shed. Our roof truss calculator can be used to aid you in the purchase of your trusses by determining the quantity of trusses and lineal feet required.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Rafter is the beam supporting the building. The exact height of the truss will depend on the height of the roof. Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise.

A roof length in feet. Find its length with our online rafter length calculator. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list.

B on center inches between trusses c width of. In other words if there is a 1 1 2 ridge board nailed into the wall and the width of the lean to is 96 then the run will be 94 1 2 96 1 1 2 94 1 2. This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof. The important point to keep in mind when you use your truss calculator is that every.

If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. To accurately calculate the area of your roof you must first determine its slope or pitch. If you re adding a truss to a flat roof you ll have some control over what slope you want.

It will use the current cost of wooden rafters based on the average price found at home improvement stores. The bottom chord of the truss will need to be the same length as the floor of the shed plus 0 25 inches to ensure a proper fit.