Old Roof Rafter Size

Just enter the dimensions of the roof rise and run to get started.

Old roof rafter size.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. For instance 2 grade 2x4s at 16 on center will span just over 9. Lumber size width 2x8 2x10 or 2x12 boards will be used to estimate cost of each rafter as well as total cost excluding local sales tax. For standard shed roof rafter spacing see rafter span chart.

If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more. If you get premium kiln dried lumber then you could span 10 5 with the same size of lumber and rafter spacing. Click the button to calculate the stock size needed for this job. This calculator is to be used as an estimating tool only.

There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. Rafter spacing and roof length will be used to determine quantity of rafters needed for your project.