Use Polystyrene Sheet As Drywall Shim

You may need a skim coat if you are repairing a crack filling a joint or leveling an area with an existing flat surface.

Use polystyrene sheet as drywall shim.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. In either sense shims are cut perfectly to size for working with full sheets of drywall. I usually have lotsa scrap 1 4 stuff around. Less than that i use construction adhesives which will take out the slop for a 1 16 easy.

Place it horizontally along the wall at various elevations to determine the thickness of the shim i just rip plywood. I have a partial sheet of polystyrene insulation that i plan to cut into a shape to insulate a square hole without permanently filling the hole. You may need a skim coat if you are repairing a crack filling a joint or leveling an area with an existing flat surface. At 1 1 2 inches wide drywall shims are the width of a stud reducing width waste and the need for long cuts.

At 45 inches long drywall shims are the perfect length because they are the width of a sheet of drywall or half of an 8 foot length. Get an 8 level. Due to factors beyond the control of the drywall doctor we cannot guarantee against improper use or unauthorized modifications of this informati.