I have a reader query which I’m embarrassed to admit none of us editors can answer. On a steel framing square, how do you use the information in the tables Side cut of jacks and Side cut hip or valley? I’m thinking that they’re used for bastard hips, but if that’s the case, how? And would the corresponding number be 12 or 17?
Arguing with a Breaktimer is like mud-wrestling a pig — Sooner or later you find out the pig loves it.
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The side cut of jacks is the angle of the cut across the top of the jack rafter and the side cut of the hip/valley is the same cut on a hip/valley rafter. The corresponding number is 12. Of course most (all?) of us use a circular saw to make these cuts but if you were using a hand saw or a chain saw on a large timber, you would need these angles.
I use the number for the jack rafters to figure the angle of my sheathing cuts. This works very well and impresses the guys on the roof when you hand up the first piece after asking for just a single measurement.
I don't know, but I bet I know who would know this.
I guy by the name of John Carroll.
I understand that he has even written about book it.
I think that maybe Lowes published it.