Lots of work accomplished the last few days. Thursday night I got the back wall built (seen above). Friday no work happened. But on Saturday the other three walls were built and all four were tiled up. On Sunday I had enough time to get all the walls plumbed and nailed together.
Using the back wall as a flat "deck" to build the other three walls on.
Here one of the sloped end wall is being assembled. A scrap board was
marked off with the stud spacing and set parallel to the bottom plate as a
way to align all the studs. Then a measurement was taken down the "slope"
to determine the length of the top plate.
Also, while I didn't bother to draw up any framing plans for the back wall
(the one on the bottom), I did draw up framing plans for the sloped end
walls. It was easier to do that and then snap some dimension strings on the
computer to get the length of each stud.
The second end wall is now built and scrap boards nailed at a diagonal for
bracing after getting the wall trued up.
The end walls were picked up and moved to the lawn so that the fourth wall
could be built on the "deck". The braces on the end walls kept them from
racking during the move.
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Left: For the long walls with consistent stud lengths it made sense to clamp
a number of studs together and do one gut. It was a lot more accurate /
consistent to do this than to cut them individually.
Right: When building the last wall I made a header beam out of a pair of
2x8s sandwiching 1/2" plywood as a spacer, this brought the beam to a 3
1/2" total width which fit perfectly in the 2x4 wall (which is actually 3 1/2"
wide). When the header was set in the door opening I used a bottle jack to
press it tight to the supporting studs lining each side of the opening before
nailing it in place. This would ensure that there was good bearing on the
support studs, think of it as pre-loading. This way the stud takes the weight
rather than the nails.
With all the other walls moved off of the "deck" I could then adjust the
squareness of the wall using a ratchet strap to pull it into square. Again,
once square a scrap 2x4 was nailed at a diagonal as a brace.
First wall tilted up and set in place.
All four walls tilted up, set in place, and clamped together. I got so excited
to get the walls up I forgot to nail in the cripple studs above the header.
Once up I went back and added those. Note the blue strips under the base of
the walls. That is a "sill sealer", a foamed plastic strip normally used to seal
the bottom plate to the concrete to prevent air leaks in a house. Here I'm
not worried about that but instead it was a plastic gasket to help minimize
any moisture between the wood wall and the concrete foundation. Even
though I'm using a pressure treated mud plate it's just a smidge of extra
protection. Costs about $0.10 per foot.
The walls were amazingly plumb when they were first tilted up and set in
place and I didn't need to do anything with the long walls. But the short end
walls were both out of plumb by about 1/4" along their entire height. It was
easy to pop off the braces and get the walls plumbed by tightening the
ratchet strap. In this photo the brace was nailed back up on the inside of the
wall. This way the walls remain braced but I can easily nail up the wall
sheathing without impediment on the exterior of the walls. All the other
braces were moved to the inside of the wall, too.