Truss heel dimension – GreenBuildingAdvisor

I’m getting ready to order some roof trusses. and I noticed that the dimension they show for the heel of the trusses is 1-3-9. I’m guessing from context clues that’s feet-inches-16ths. I hate the imperial measurement system, but that’s another story. My drawings specify a heel of 1’6″. I then noticed that on the truss drawing, it looks like the heel of the truss is sitting on two 2x4s. I don’t know whether that’s supposed to represent the wall double top plate, or additional pieces above the top plate, or what. Is this a standard way of building up the heel height?

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Start free trial