Hi I live in a 150 log house which been rebuilted.The flooring is 2 BY !0s laid on their sides with splines.Floor been down for about 30 years.The 2By 10s are laid over logs so the floor sags.I would liked to put new hardwood flooring over this on a level surface.I am concern
about expansion and contraction due to winter and summer.Any Idea how to do this?THANKS

Hello, Would you like to run the flooring in the same direction as your existing floor? . . . I'm going to
assume this is why you're concerned with wood movement.
My suggestion would be . . . .rim the room with 1/2" x 3" plywood, if your pleased with the perimeter
elevation. Then, use a chalk line perpendicular to your existing flooring . . . .hook it to your plywood

strips. Use a 2 x 4 on edge beside the chalk line . . . . .snap your line. Repeat this every 12" across
the floor. (THESE ARE YOUR SCRIBED SLEEPERS). . . . . and you have a level plain to install your

new flooring on. Just a few spot of urethane adhesive & a few finish nails will hold these in place.
dan @ pro

OOps . . .hope you're using 3/4" solid flooring over these sleepers on 12" centers?