Floor Joists – Part III: subfloor

In the last post, I finished the joist installation. Before installing the 4×8 3/4″ OSB panels for the subfloor, I wanted to get everything as near as possible to level. The set up The 2×12 double beams are made out of 20 foot long boards. They are not perfectly straight over that distance. When I installed them, I checked carefully for any crown in the boards, and placed it up. But you don’t want your joists following the crown of the beam. I used a water level to level the joists, and followed that line when installing them. The idea … Continue reading Floor Joists – Part III: subfloor

Floor joists – Part II: beams and joists

The setup With the rim joists installed, it was time to install the two double beams. They are 20 foot 2×12’s sandwiched together with 1/2″ bolts and nuts, there are 4 boards in each of them, and they span 40 feet across the house, supported by 5 piers each. There are two of these beams. I decided to install one, then attach all the floor joists to it, then install the second one later. Space is at a premium inside my cabin with all the lumber and osb stacked inside.   When I set the forms for the inner piers … Continue reading Floor joists – Part II: beams and joists

Floor joists – Part I: Rim Joists

Note: This happened before the chinking post, but I got too excited about chinking! So here you go…. The setup Staining is done. Gutters are done. Logs are dry. But the ground inside was staying moist – like, all the time. I thought after I got the roof on things would eventually dry out inside the cabin. Weirdly, they didn’t. Our water table is somewhat high, but not overly high- I dug down 4 feet and didn’t find any water. It must just be “the humid South”. I researched and found that installing a vapor barrier – basically 6 mil … Continue reading Floor joists – Part I: Rim Joists