Backing Board

Backing Board

Definition: A Backing Board is a rigid protective sheet placed at the back of a picture frame to provide support and stability to the artwork, mats, and glazing. It also serves as a barrier against dust, pollutants, and environmental changes. Backing boards are typically made from materials such as foam core, gator foam, or corrugated plastic, with archival-quality versions available for preservation framing.

Common Materials

• Foam Core: Lightweight and widely used for general framing.
• Gator Foam: A denser, more durable alternative that resists warping.
• Corrugated Plastic: Provides water resistance and extra rigidity for large frames.
• Archival Boards: Acid-free, lignin-free boards designed for museum and conservation framing.

Functions

• Protects artwork from physical damage and environmental exposure.
• Maintains flatness and prevents bowing of the artwork and mats.
• Acts as a base surface for hinging or attaching artwork and mats.

Applications

• Conservation Framing: Uses acid-free and archival-grade backing boards for long-term preservation.
• Commercial Framing: Uses economical foam core or corrugated options for general art and photography.
• Large Format Framing: Employs rigid boards like gator foam to maintain structural integrity.

Advantages

• Provides crucial structural support for framed artwork.
• Available in a wide range of thicknesses and qualities.
• Customizable to meet both budget-friendly and archival standards.

Related Terms

• Techmount
• Sintra
• Mounting Board
• Diasec