Overhang – This is the part of the roof that extends beyond the exterior wall of the home.Span – This is based on the total footprint of the house and the distance between two exterior walls.If you think back to your early geometry classes, you might remember that the pitch of a triangle is the rise over the run. Pitch – This is the incline of the roof.Our handy roof truss design calculator calculates the rake length of your roof by using the span, overhang, and pitch measurements. It’s vital that you use your exact measurement rather than estimates from other projects or homeowners. Take a look below to find a starting point for your roof truss budget.Īn important note: Every truss calculation will be completely unique based on your roof’s specific size and dimensions. Our roof truss design calculator will help you determine some of the details, including dimensions and basic principles of construction. Wondering how to achieve that perfect roof truss design in your home - and how much it will cost?
