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These are six strips of closed-cell expanded polystyrene (EPS) foam board, each 3/4 in. thick, 14-1/2 in. wide and 48 in. long, rated R-3. They are sized to slip between stud cavities and to furr out basement walls, and they cut easily with a utility knife or hot wire. EPS is the cheapest rigid foam type, but at R-3 per 3/4 in. it insulates far less than polyiso or extruded polystyrene (XPS) of the same thickness, so it suits light-duty gap filling, crafts and packing more than serious wall insulation.
Availability unknown
Lowest price we've seen: $235.62 on Nov 4 at Menards. Tracked across 1 store since Nov 4.
This pack contains six expanded polystyrene foam board insulation panels. Each panel measures 3/4 in. x 14-1/2 in. x 48 in. and has an R-value of R-3. The closed-cell foam keeps its R-value over the life of the panel.
The strips fit between stud cavities and can be used when furring out a basement wall. They cut and shape easily with a utility knife or hot wire, and can be molded into various shapes and sizes.
The foam can also be used for arts and craft projects, and for packing and protecting fragile items.
