Overlap

Overlap

Definition: Overlap refers to the portion of a mat or frame lip that extends over the edges of artwork. This coverage helps secure the artwork in place and ensures a clean, finished presentation by preventing the edges from being exposed.

Overview

Overlap is an essential consideration in framing because it affects both the appearance and stability of the mounted artwork. The amount of overlap is typically small-often between 1/8" and 1/4"-to hold the piece securely without obscuring significant portions of the image or print.

Materials and Application

• Matboard: The edge of the mat window overlaps the artwork to hold it in position.
• Frame Rabbet: The inner lip of a frame overlaps the edges of the art or mat, keeping it snug against the backing board.
• Archival Considerations: Acid-free or conservation-grade mats and backing boards are preferred to prevent chemical reactions where overlap touches the artwork.

Uses

• Secures artwork in place within a frame or behind a mat.
• Provides a visual boundary for the artwork, enhancing the presentation.
• Protects the edges of artwork from fraying, dust, or handling damage.

Considerations

• Excessive overlap can obscure important portions of the artwork.
• Insufficient overlap may cause the artwork to shift or become unsecured.
• Proper overlap balances aesthetics with functional stability.

Related Terms

• Mat Opening
• Mat Window Size
• Mat Window
• Acid Free Mat