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1 x 48-Inch X 8-Foot R5 25psi Blue Square-Edge Insulation Board


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* Estimated stock levels as of Mon, Dec 4, 2023. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.


STYROFOAM Brand Square Edge Insulation Extruded Polystyrene is a Type IV product with square edges on four sides to help ensure energy efficiency and minimize on-site cutting and waste. It offers superior water resistance, long-term thermal performance.

Nominal product information shown. Actual product may vary by (and not limited to) dimension, color, grain, etc. Contact your local store for details.



Color Blue
Edge Square
NominalSize 4X8
Type Insulation


Length 8 ft
Nominal Size 4X8
Size 1X48X8
Thickness 1 in
Width 48 in

Manufacturing Details
The following information is subject to change without notice

Prop 65 Warning Warning WARNING: This product can expose you to chemicals including wood dust, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

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