3/4-inch tongue & groove (TNG) plywood sub-flooring is a different proposition from 7/16" OSB, so we rented a lifting device.

Malinda got plenty of arm exercise cranking 5 sheets of plywood at a time up to the loft level.

Joe cuts the plywood while Malinda an Julia get the latest power drill organized.

Joe lays a liberal application of contstruction adhesive on top of the joists, and Julia finishes the job with the electric drill.