- Catalog
- Backerboard
- HardieBacker with HydroDefense Technology 3 ft. x 5 ft. x 0.42 in. Waterproof Cement Backer Board
In Stock Hardwarestore Delivery
HardieBacker with HydroDefense Technology 3 ft. x 5 ft. x 0.42 in. Waterproof Cement Backer Board
$21.98
Published price — same for everyone
Gone — not just here.
Substitutes below — from the same aisle.
SKU 311573721
The price on the page is the price.
Find it, price it, order it — without a phone call. Questions on spec, quantity, or freight? Contact us.
Buying more than one thing? Start your list — however you have itFreight and delivery are calculated at checkout — no surprise charges.
Details
James Hardie HardieBacker Cement Board with HydroDefense Technology is a waterproof cement backerboard designed for use on walls, floors and countertops. Use on walls in moisture prone areas, as a tile backerboard and as an underlayment for all tile, vinyl and wood flooring applications. Formulated with MoldBlock Technology to protect the board against damage from mold. Works great in wet areas such as bathrooms, kitchens and laundry rooms. Provides strength, ease of use and excellent tile adhesion creating a solid base for projects. Waterproof composition throughout entire board saves cost by eliminating the need to apply a separate waterproof coating across the surface of the board.
Features
- California residents
- Protect projects with confidence, waterproof cement board provides the ultimate barrier to moisture on walls and flooring
- Contains no fillers or abrasive aggregate, made with 90% Portland cement and sand for strength creating a strong foundation for projects
- Fully waterproof composition throughout the board saves time by eliminating the need to waterproof entire surface
- Skip the step of waterproofing entire board - just waterproof joints and fasteners
- Score and snap - easy, quick and clean cut indoors using a scoring knife or a utility knife
- Strong enough for use in commercial or residential applications
- 3 ft. x 5 ft. board is 0.42 in. deep and works on floor, wall, countertop or backsplash applications
- Strong waterproof cement backerboard passes ANSI A118.10 waterproofness testing
- Additional waterproofing may be required, consult local building codes before beginning

Features
| Item Weight | 44.5 |
| Drywall Features | Environmentally Sustainable,Fire Resistant,Waterproof |
| Product Weight (lb.) | 39 lb |
| Product Width (ft.) | 3 ft |
| Product Thickness (in.) | .42 in |
| Product Length (ft.) | 5 ft |
| Width (ft) x Length (ft) | 3ftx5ft |
| Drywall Product Thickness (in.) | 1/2 in. |
Third-party marks are the property of their respective owners and do not indicate sponsorship or endorsement.