Here’s a slap construction technique we used a few years ago on a 22 housing complex. I was working for the general contractor at the time and he wanted each sub-contractor to have at least 11 houses to work on at once. The layout of each house was different, and the exteriors had a combination of stone, brick, EFIS, and siding. Quite a challenge and since we were in charge of layout, footings and prep for the concrete flatwork, we had to be as efficent as possible. After the sites were excavated and leveled a layout sub came in to pin the corners of the houses with 16d nails crossed with orange tape. They used GPS and were accurate to within 1/4 in. Batter-boards were set up outside of the pins and a nail was set on the building line so strings could be stretched, lines painted, then footings dug. Carefull attention was placed to the location of these batter-boards… they could not interfere with the track-hoes and had to be low enough for the concrete trucks to drive over them. If they were bumped we would take a lot of time to make sure the building the lines were still intact. Every crew has a few older men who earned their stripes from years of hard construction, and these were the men who were in charge of the next step. After the footings were poured between two batter boards, the strings were stretched again 1 1/2 in. outside the building line and 1 x 4 stakes were worked into the wet concrete. The next day, set up the laser and set the 2 x 10’s right against the stakes and the forms are up so quick that the plumber is baffled and wondering how he is going to beat the concrete crew who is scheduled for next week. Remember to take into account 1 1/2 in. from outside the building line for the width of the 2 x 10… because this mark for the string is where you must set the stakes. Do not set the stakes on the building line. This technique takes a bit more fuss for the batter-boards, but form set-up is at least 4 times faster.
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Save the lumber
Clean up the 2 x 10s' and have the framers use them to build the headers. Amazingly, this worked out nearly perfectly for every house.