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James Hardie Hardie Backer 1/4-in x 4-ft x 8-ft Fiber cement Backer Board Sheet

Name: James Hardie Hardie Backer 1/4-in x 4-ft x 8-ft Fiber cement Backer Board Sheet
Brand: James Hardie
SKU: 3449860
Rating: 4.6 (1546 reviews)

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4.6

1546

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Common Measurement (W x L): 4-ft x 8-ft

3-ft x 5-ft

4-ft x 8-ft

Common Thickness in Inches: 1/4-in

1/2-in

1/4-in

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Hardie® Backer cement board is a tile underlayment made to use with floors and countertops. Works in kitchens, bathrooms or other areas within the home. 0.25" cement board is made of 90% Portland cement and sand, resists damage from moisture and provides excellent tile adhesion. Product formulation results in a combination of strength, uniform composition and performance. Hardie® Backer cement board is easier to use, cuts with tight seam lines and less debris. Hardie® Backer contains superior strength and durability delivering a solid foundation in projects involving tile, flooring and stone countertops.

Cement backerboard provides a solid foundation for floors and countertops in bathrooms, kitchens, laundry rooms and more
Moisture resistant cement board engineered for use in wet areas
MoldBlock® Technology protects the board against damage from mold
Score and Snap - easily cuts indoors using a scoring knife for less dust and mess
Use under a variety of flooring or countertop surfaces including tile, vinyl, wood, granite and other stones
0.25-in thick x 48-in W x 96-in L
Limited lifetime product warranty
Consult local building codes for waterproofing requirements before beginning any project

General
Material	Fiber cement	Series Name	Hardie Backer

Dimensions
Actual Thickness (Inches)	0.25	Actual Length (Inches)	96
Common Measurement (W x L)	4-ft x 8-ft	Weight (lbs.)	63.2
Actual Width (Inches)	48	Common Thickness in Inches	1/4-in
Coverage Area (Sq. Feet)	32

Features
Sold As	Sheet	Number of Sheets	1
Water Resistant	Yes	Waterproof	Yes

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	ANSI A118.9 Compliant	Yes
ASTM C1288 Compliant	Yes

Compatibility
For Use with Fireplace Exteriors	No	For Use with Vinyl Floors	Yes
For Use with Garage Floors	No	For Use with Kitchen Counters	Yes
For Use with Garage Walls	No	For Use with Bathroom Floors	Yes
For Use with Patios	No	For Use with Shower Walls	No
For Use with Pools	No	For Use with Shower Floors	No
For Use with Kitchen Backsplashes	No	For Use with Bathroom Walls	No

Miscellaneous
UNSPSC	30161500

Check out the Best Selling Backer Board on Lowes.com

Review

4.6 out of 5

1546 Reviews

94% Recommend this product

Ratings may include incentivized customer reviews.

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+ 63

What Customers Are Saying

The product is durable, waterproof, and easy to work with, making it a suitable choice for tile backers and shower walls. While cutting the material can be challenging, most customers found it manageable with the proper techniques. The product is versatile and can be used for various applications beyond tile. Overall, the product is considered high-quality and provides a stable, waterproof surface, with the majority of customers satisfied with its performance.

Customer review summary generated by AI, including incentivized reviews.

1546 Customer Reviews

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best product ever

bruceAugust 31, 2026
From Hardie Backer 1_SLASH_4-in x 3-ft x 5-ft Fiber cement Backer Board Sheet Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item James HardieHardie Backer 1/4-in x 4-ft x 8-ft Fiber cement Backer Board Sheet
		Ratings	1540
		Material	Fiber cement
		Weight (lbs.)	63.2
		Actual Thickness (Inches)	0.25
Johns ManvilleGoBoard 1/2-in x 4-ft x 8-ft Polyisocyanurate Backer Board Sheet	Johns ManvilleGoBoard 1/2-in x 3-ft x 5-ft Polyisocyanurate Backer Board Sheet	DUROCK Brand1/2-in x 4-ft x 8-ft Cement Backer Board Sheet	PermaBASE1/2-in x 4-ft x 8-ft Cement Backer Board Sheet	Schluter SystemsKerdi-Board 1/2-in x 48-in x 32-in Polystyrene foam Backer Board Sheet	DUROCK Brand1/2-in x 4-ft x 8-ft Cement Backer Board Sheet	DUROCK Brand5/8-in x 4-ft x 8-ft Cement Backer Board Sheet	Schluter SystemsKerdi-Board 2-in x 2-ft x 8-ft Polystyrene foam Backer Board Sheet
615	615	823	34	141		11
Polyisocyanurate	Polyisocyanurate	Cement	Cement	Polystyrene foam	Cement	Cement	Polystyrene foam
16	7.5	0.5	95.94	2.18	96	97.28	9.34
.47	0.47	0.5	0.5	0.5	.5	.625	2

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James Hardie Hardie Backer 1/4-in x 4-ft x 8-ft Fiber cement Backer Board Sheet

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