I just have to say, construction is a real-life expression of logic:
If a is true and b is true, then c must be true as well.
If this board is square and level, and this board was measured correctly, then this should fit perfectly!
I calculated the dimensions of the first common rafter for my tiny house on graph paper yesterday. Then today I set up the ridge beam and measured out the dimensions for the rafters.
I was pretty excited that it fit so nicely!
Gotta like that fit!
Marking off where the beam should meet the posts.
Setting up the beam with only one person. Screwed some braces to hold once side until I climbed up and lifted the other side.