Home > Shop > Drywall & Insulation > Insulation & Vapour Barrier > Rigid Foam > 2x8x1-1/2" STYROFOAM SM SHIPLAP (R7.5) 2x8x1-1/2" STYROFOAM SM SHIPLAP (R7.5) Item #: 05069550 Mfr #: 112SMT4 $31.08 each Checking Inventory Add to Cart Overview: TYPE 4 - 30PSI