AMERICAN GYPSUM 2 x 4-Foot X 1/2-Inch M-Bloc Drywall Panel

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2 x 4-Foot X 1/2-Inch M-Bloc Drywall Panel

2 x 4 1/2

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* Estimated stock levels as of Tue, Feb 7, 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.

  • Mold and moisture resistant


M-Bloc gypsum panels were developed as an improved mold and moisture resistant wallboard with a fire resistant core encased in a mold and moisture resistant blue face paper and brown back paper manufactured from 100% recycled paper. At an independent laboratory accredited in accordance with ISO 17025-2005, M-Bloc panels have been tested to the industry's most rigorous standard achieving the best possible results per ASTM D 3273 scoring a perfect 10, thus minimizing the risk of mold and mildew growth.

M-Bloc gypsum panels are a lightweight cost efficient interior wall or ceiling panel for use throughout a project as well as the adhesive application of ceramic or plastic tile in limited wet areas, e.g., bathrooms, kitchens, laundry, and utility rooms. M-Bloc gypsum panels are also approved for exterior soffits and/or sidewalls in protected corridors/breezeways with indirect exposure to the weather.

Drywall brands vary by location. Nominal product information shown. Actual product may vary by (and not limited to) dimension, color, etc. See store for details.




Length 4 ft
Size 4 ft x 2 ft x 1/2 in
Thickness 1/2 in
Width 2 ft

Manufacturing Details
The following information is subject to change without notice

Prop 65 Warning Warning WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

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