Tag: square

First Floor Framing

It’s Fall now, and we really want to get spray foam insulation installed before winter hits. That means we need all the framing done, as well as rough plumbing and electrical. Fortunately on the first floor we have an open floor plan, so there isn’t all that much framing to do. In addition to a few walls we need to finish the fire blocking and add nailing edges to the corners.

Blocking added to wall

Blocking added to wall

A few months ago, Dean came over and we got most of the fire blocking installed. The fire blocking consists of short pieces of 2×4 fit between the exterior wall studs at the floor, halfway up the wall, and behind the ribbon at the ceiling. They help prevent fire from spreading up the wall cavities, improve structural rigidity, add drywall nailing edges, and they’re required by code. Since we changed our plans, the only framing we need to do is the bathroom walls, the half-wall that divides the kitchen from the living room, and a small triangle of wall along the second run of stairs.

Last week I got the two bathroom walls up. As usual there was random shimming and allowances for our out-of-square house, but I must be learning because everything went pretty smoothly (except when one of the wall sections I had stood up fell over, broke the light, and almost crushed my camera). The walls are nice and straight despite the house and I didn’t have to take it apart to cut mis-measured boards.

Sarah’s dad, Mike, was over on Saturday and together we built the kitchen walls. There’s a short section under the beam connected to a half-wall that divides the kitchen from the living room, with a walkway near the wall. That went fairly smoothly, though we did run into one section by the wall we had to redo to compensate for the non-trueness of the outside wall.

Fire blocking with plugs

Fire blocking with holes and plugs

Sunday Sarah and I spent pretty much the whole day finishing the fire blocking. At the front and back of the house the floor joists run parallel to the wall, so if we’d put solid blocking in it would have closed off a pocket in the wall that couldn’t be spray foamed from below. To get around that I drilled 2″ holes in each piece of blocking so the spray foam installer can fill the pocket, put the little wood plug into the hole, then fill the rest of the wall.

Angled framing

Angled framing

Tuesday evening we framed the triangle of wall by the stairs and installed nailing edges at the corners. Wednesday evening our friend Mike came by with his truck and picked up most of our scrap metal pile in the basement, cutting down the big stuff with his torch. We need to clear all that out so the spray foam installers can get between the joists in the basement. We still have to get the tub and old boiler out, as well as some wiring, but it’s a huge improvement.

Truck loaded with scrap (also Derek)

Mike’s truck loaded with scrap (also Derek)

Yesterday I took care of some furring by the front door to even out the wall. We’ve got calls out to our plumber and electrician to get them lined up and see how soon they can do the work. Local code requires we use licensed contractors for the work, and it will certainly take them a lot less time than it would us. That’s not to say we won’t have anything to do ourselves. We still need to add furring to the ceiling, even up some of the outside walls, install the security system wiring, speaker wiring, and cabling conduit, plus clean out the rest of the basement, not to mention finish up a bunch of odds and ends we haven’t gotten around to. The exciting thing is that once all that’s done and Lester does some prep for the radiant floor heating, not only can we get our spray foam insulation, we can start drywalling. It’s been so long coming that it’s exciting just to think about.

Stair Stringer Struggles

Our stair stringers were delivered and I set to work building the first run up to the landing. We’re using 14″ LSL stringers up to the landing because it has to span ten feet above the basement stairs. The stairs will be 42″ wide so there are three stringers, all notch cut. I considered doing an enclosed stringer, but I wanted the treads exposed on the side so we can have a wooden railing with iron balisters, plus the center stringer has to be notch cut anyway, so for consistency I notched all three. I also reinforced with a 2×4 glued and screwed to each one, per manufacturer recommendations.

Stringers installed

Stringers installed

 

I used stair gauges on a carpenters square to mark the cuts. All of my cuts were exactly accurate the first time, the stringers fit in place precisely the way they were supposed to, and they were perfectly level and aligned with one another. The only reason it took me three weeks is because I was admiring how flawless it all was. Eh heh, heh, ugh. No. As I continue to discover, I am not a very good carpenter. I made systemic mistakes, had flaws in my original plan, and spent most of the last few weeks trimming and shimming until the stringers approached a semblance of what I originally had in mind.

Let me run down the, uh, opportunities for improvement I encountered. Firstly, my original model had a flaw that in retrospect to everything else wound up being fairly minor. I made several important measurements that accidentally included the thickness of the risers and treads. In the end I had to make some field adjustments. I also had to slope the back of one of the stringers because the landing is slightly crooked at one end. I almost managed to cut one of the stringers nearly two feet shorter than the others, but fortunately realized my mistake before I had caused catastrophic damage.

The more major issue I didn’t actually figure out until I had been scratching my head at the stringers for a week, trying to figure out why the backs of each step weren’t in line. It turned out I had made the same mistake I’ve now made on multiple other occasions, which is forgetting that the house is totally wonky. The opening to the basement stairs is bordered by a doubled floor joist on one end. I used that edge as the basis for building the landing, and the landing as the basis for the stairs. As it turns out, that floor joist is not quite perpendicular to the outside wall, something I should have realized after all my subfloor frustrations.

Shim shimmery

Shim shimmery

As a result, the landing is not square (like, at all). I have built yet another parallelogram. When I carefully and exactly laid out the stairs to the landing so that the stringers fit, they were skewed to one another. I wound up cutting two of the stringers a bit shorter to compensate, barely fitting them against the landing without sticking down (one may be protruding by a sixteenth, but it’s close enough).

Even after that correction I wound up going back and forth, trimming and shimming an eighth here and there until my levels and measurements started to coalesce around the goal. I’m pretty sure upwards of eighty percent of the edges have had some form of adjustment. As it stands I still have a couple of steps that need some tweaking before they’re acceptable. It’s been a bit of a slog, to the point that I’ve re-written this post multiple times over the last few weeks as the situation evolved. The good news is that I didn’t ruin my expensive engineered lumber, the stairs will be as close to perfect as I know how to make them, and hopefully I’ve learned enough lessons that the remaining stair framing will go more smoothly.