When installing blocking that is staggered, you can end-nail it. But what about when it's important for the blocking to be in a straight line?
For example, when you want to support butted-edges of sheet goods.
How should the blocking be fastened?
How to install blocking in a straight line
carpentryframing
Related Solutions
You don't need to interrupt the foam insulation with fireblocking, but if there's a gap between the foam insulation and your framed wall, then you'll need fireblocking across the gap every 10 feet.
IBC 2015, 718.2:
In combustible construction, fireblocking shall be installed to cut off concealed draft openings (both vertical and horizontal) and shall form an effective barrier between floors, between a top story and a roof or attic space. Fireblocking shall be installed in the locations specified in Sections 718.2.2 through 718.2.7.
While 718.2.2 designates a "concealed wall space" as requiring fireblocking, 718.2 (quoted above) prescribes the nature of this fireblocking: It interrupts "concealed draft openings." Building your framed wall tight to the foam will avoid any draft openings, but if you've got a gap between the framed wall and your foam, then that's a draft opening that will need a fireblock every 10 feet.
Beams typically rest on their posts or trimmer studs. This case is no different, really, and there's no rule that says you have to have a chunk of post running up the height of the beams. I'd miter the beams at a 45 degree angle so that each rests on half the post. Screw them together well and toenail them into the post. It'll look something like this:
8 feet is a typical room height (92-5/8" precut studs with 3 two-by plates), and that's what's normally used for porches as well. Your situation may call for something else, though. It depends on may things.
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Best Answer
Toe nailing is usually the easiest (provided you're using an nail gun).
If you want to get fancy, you could end-nail every other one, then use L-brackets for the ones in between (nail the bracket to the blocking so that and then nail the bracket into the studs):
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