A3 Picture Mount for A4 Artwork

A conservation-grade acid-free picture mount board designed to display A4 (210 × 297mm) artwork inside a standard A3 (297 × 420mm) frame. The mount creates a balanced border around the artwork, helping the image stand out while protecting it from direct contact with the glazing.

Choose from over 30 mount board colours, ranging from classic framing tones like Snow White, Off White, and Obsidian Black, through to softer neutrals and contemporary colours including sage green, sky blue, blush pink, and rust.

Each mount is precision cut with a slight overlap so the artwork sits securely behind the mount board.

Ideal for framing A4 prints, posters, illustrations and photographs in a larger A3 frame.