Planning to build a small porch on top of an old concrete staircase and I'm wondering what I should use between the concrete and the pressure-treated floor joists. Will those plastic shims used for installing door frames work?
Like this one:
http://www.byggmax.com/se-sv/Prod/PID-13011.aspx
I thought they would be perfect for leveling the floor joists...
Like this one:
http://www.byggmax.com/se-sv/Prod/PID-13011.aspx
I thought they would be perfect for leveling the floor joists...
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