Flat Roof Truss Dimensions

Input the rafter span on the flat eave overhang and pitch of the roof.

Flat roof truss dimensions.

Conventional slope roof range between 4 in 12 and 8 in 12. The truss is a framework consisting of rafters posts and struts which supports your roof. Roof truss span chart. Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6.

This sizing guide for roof rafters will help determine what you need for your small project. Gable room in attic trusses provide an economical way to add extra living space to your home or garage. This calculator is to be used as an estimating tool only. Click the button to calculate the stock size needed for this job.

Rafter stock size calculator. Widely known for producing a quality product for over 20 years barlow truss provide any type of wooden roof truss you need. The room size will vary depending on the width and slope of the truss. Compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list.

Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. Perfect for use in lieu of bar joist or can be an excellent non combustible option when compared to wood floor trusses. Add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list. A flat roof has a slope of 2 in 12 or less.

If you want to build a flat roof then you will need to build a flat roof truss these are designed to span the space between two load bearing walls and take the weight from the roof onto these walls. There are several variables to consider when determining the proper rafter size. Fully engineered fabricated to exact dimensions. The run always remains constant at 12 inches.

Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. A gambrel room in attic truss also provides extra living space while giving your roof a barn like appearance. Weather you re building a shed roof or adding a dormer to your second story it is important to choose the proper size rafter. A low slope roof is anywhere from 2 in 12 to 4 in 12.

A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof.