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This is a six-pack of expanded polystyrene (EPS) foam board panels, each 3/4 inch thick, 14-1/2 inches wide and 48 inches long, rated R-3. The narrow 14-1/2-inch width is sized to slip between stud cavities and to fur out basement walls, and the closed-cell foam keeps its R-value over the panel's life. It cuts and shapes easily with a utility knife or hot wire, so it also works for crafts, packing and protecting fragile items. Against rigid XPS or polyiso boards, EPS is the lighter, cheaper insulator per inch but has the lowest R-value per inch, so it suits thin fill and craft work more than whole-wall insulating.
Availability unknown
Lowest price we've seen: $235.62 on Nov 4 at Menards. Tracked across 1 store since Nov 4.
These expanded polystyrene foam board panels are closed cell insulation. The panels do not lose R-value over their life.
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. They can also be used for arts and craft projects, and for packing and protecting fragile items.
