How to figure out rafter length

Each are explained here in plain english. The easiest and most accurate way is to. ROOF RAFTER CALCULATOR - Estimate Rafter Length , Cost and . All you need to know are the span of the building and the slope of the roof.

Determining Roof Rafter Length.

Conversion Factors for Roof Rafters.

To convert Rafter Span to Sloping Distance: 1.

Select slope factor for given slope in table. Multiply Horizontal Span by Slope Factor. Open page with full scale printable birds-mouth cutting template at current rafter angle and dimensions. Our roof rafter calculator tools are handy for calculating the number of rafters neede rafter length calculator, lineal feet of rafter, board feed in ridge and sub- facia,and the total board feet in the roof. Roof pitch calculator - Use this calculator to calculate roof slope, roof pitch, and common rafter length.

If you have any two of those values, the calculator will quickly figure out the rest of the right triangle— which means it will tell you everything else you need to. To get to the top of the ridge, I need to measure the rafters HAP, or “Height Above Plate. Use the calculator below to determine rafter length.

Overhang Feet Inches Sixteenth. Long Material Cart Mobile Rack Cart. Easily move materials across solid or soft surfaces — these carts are constantly in . How to master Trade Skills for Carpentry construction videos. This video explains how to figure your rafter length and lay it out.

Doing this will save time and material. Calculate Roof Rafters - cost, length and quantity. It will also ensure the structural integrity of the roof. This how-to will guide you through the steps of calculating your roof rafter correctly.

As shown in figure 8b, placing the pivot of the square against the outside of the rafter , line up the dash line at 31⁄2on the square with the plumb mark and make the horizontal line. Bottom Plumb cut: Using the tail length.