The first thing we needed to do was set up a string line to use as a reference for the long edge of the panels. We set it 2" from the 4' panel width.

The long edge of every panel along the first row will be 2" shy of the string.

We chose to start in the SE corner which is a small-end corner for the first log course. This panel will fit furthest into the wall and will require the least amount of trimming.

Since we're fitting these panels along a log with knots a round surface, and taper from one end to the other, some custom trimming with the jigsaw was necessary.

Jeff and Bob made a template for the cut to be made for the RPSL, then transferred it to the panel where Jeff cut out the round notch.

Looks like it might be a good fit.

One of the joists in one of the doubles had a crown in it, so Bob took his planer to it to level it out.

Bob marks a location on the panel where it hits a knot in the log and will have to be trimmed out.

Trimming out that area with the jigsaw.

The notch is a bit tight so Bob sketches the trim locations on the panel...

...then shaves them out.

Jeff applies construction adhesive to the joists before they screw the next panel down.

It's a rough cut, but for the subfloor panel, it's a pretty good fit.

The last panel needed to be cut short...

...and trimmed to match the taper in the log on the long edge.

Applying more adhesive before laying the last panel for the first row.

They got three panels laid in the second row, which went fairly quickly.

The first row did not go all the way to the west wall because the lifting pole is still in the way, so a shorter scrap piece was laid down over the hole for now.