Cementitious Backing Boards (FinPan)

FinPan, Inc.

Specification Details

8.5" x 11"
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Cementitious Backing Boards

Use this free downloadable 3-part specification template to specify cementitious backing boards for use behind the tile by FinPan, Inc.

What are cementitious backing boards?

Cementitious backing boards are construction material made of cement, sand, and reinforcing fibers to form a dense, durable panel. These boards serve as a stable surface for the application of tiles, natural stone, or other finishes used in wet areas like bathrooms, kitchens, and showers.

One of the key advantages of cementitious backing boards is their resistance to water and moisture damage. Unlike traditional plywood or drywall, which can warp or degrade when exposed to moisture, cementitious boards remain stable.

Additionally, the boards offer fire resistance, making them suitable for areas where fire safety is a concern. Also, used in commercial and residential construction projects to ensure a long-lasting and reliable substrate for tile or stone installations in areas prone to water exposure.

Quick facts
  • Composition: These boards are made from a mixture of cement, sand, and fibers. This combination gives them a sturdy and durable nature.
  • Purpose: They are primarily used as a substrate or base for tile or stone installations, especially in wet areas like bathrooms, kitchens, and exteriors.
  • Water Resistance: Cementitious backing boards are highly water-resistant and are designed to withstand moisture exposure without degrading.
  • Strength and Durability: They are known for their high structural integrity, making them suitable for heavy-duty applications.
  • Fire Resistance: They offer excellent fire resistance due to the cement content.
  • Installation: They can be a bit heavier and harder to cut compared to gypsum boards, requiring specific tools for installation.
  • Cost: Cementitious boards tend to be more expensive than gypsum boards.

Most building codes require boards in showers and other wet locations where long-term exposure to moisture may occur.


For assistance, contact FinPan, Inc. by calling 800-833-8444 or visit their website at www.finpan.com.


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Related specification templates: 

06 16 63 – Cementitious Sheathing

07 22 00 – Cementitious Roof Insulation


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cementitious backing boards

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