You're installing a bathtub, but how do you protect it during the rough days of construction? In this video Matt Risinger, master builder, instructs on how to best protect the bathtub, since it's installed at the pre-drywall phase.Many of us have seen nails dropped into an installed bathtub by those hanging drywall, only to be stepped on and scratch the surface. In time, those scratches can rust. Starting with Kohler's cast iron tub, cut a sheet of Dow Styrofoam for the top, the apron and tape it all together. Then cover it with plywood. When the sheetrock installers are there, they can drop whatever," stand on it and it will still be perfect when construction is done.