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Allura™ 1/4" x 3' x 5' Fiber Cement Underlayment

SKU allurabacker1/4


This Fiber Cement underlayment is installed over the subfloor to provide a smooth, water-resistant, durable surface in which porcelain or ceramic tile may be installed. It may also be installed for countertops in conjunction with tile. These products feature a dense, non-porous surface making them excellent choices for kitchen and bathroom applications where moisture is a fact of life. The surface and edges are also smoother than those of competing products for easier installation and neater finished jobs.


Installation Instructions


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Dimensions: 1/4" 3' x 5'

Shipping Dimensions: 60.0 H x 36.0 W x 0.25 D

Shipping Weight: 32.1 lbs

Brand Name: Allura


  • Lightweight for easy handling
  • Easy to cut, using the "score and snap" method
  • Water resistant fiber cement underlayment
  • Easy to nail
  • 20 year warranty


Product Type
Fiber Cement
Nominal Dimensions
3 x 5
Nominal Thickness
1/4 inch
Actual Width
36 inch
Nominal Width
3 foot
Actual Length
60 inch
Nominal Length
5 foot
Coverage Area
15 square foot
Listing Agency Standards
ASTM C1288, ASTM C1325, ANSI A108.11, ANSI A118.9
Resistance Features
Moisture Resistant, Mold Resistant