How Multi-Opening Mats Work
Multi-opening mats are precision cut with multiple windows in a single board so several photos, prints, or keepsakes can be displayed together in one frame. You control each opening size, position, and spacing for a clean, balanced presentation.
Choose Your Number of Openings
Create anything from a simple two-photo layout to a large collage with dozens of openings. Our designer supports flexible configurations for portrait, landscape, square, and mixed-orientation arrangements.
Mat Board Materials & Colors
Select from archival, acid-free mat boards in classic neutrals and bold accent colors. Single and double mat options let you build contrast and depth while helping protect your artwork over time.
Custom Sizing Options
Set custom outer mat dimensions and define each opening to fit your exact image sizes. This gives you full control for standard prints, panoramic photos, and non-standard artwork dimensions.
Popular Uses: Collages, Wedding, Family, Sports
Multi-opening collage mats are popular for wedding photos, family walls, sports memories, graduation displays, and themed gallery arrangements. They make it easy to tell a visual story in one finished frame.
What is a multi-opening mat board?
A multi-opening mat board (frequently called a collage mat board) is a single piece of premium matting precision-cut with two or more windows. It allows you to showcase a collection of photos, art prints, or sports memorabilia together inside a single collage picture frame without buying separate displays.
How much smaller should my mat opening be than my photo?
To prevent your artwork from falling through the window, your matboard openings should be cut roughly 1/8 inch to 1/4 inch smaller than your actual image size. For example, if you are framing a standard 4x6 print, setting an exact window opening size of 3.75" x 5.75" ensures a perfect, secure fit.
What is the benefit of ordering a custom double mat board?
A double mat board layout places an accent mat layer directly beneath the primary top mat. This design creates a tiny colored border or "reveal" (typically 1/4 inch) around each of your collage picture mat openings. This technique adds deep visual dimension, isolates colors in your prints, and provides a professional gallery-grade aesthetic.
Are your collage picture mats archival and acid-free?
Yes, our online matboard designer lets you select from dozens of premium, acid-free mat colors. Using archival-quality matting protects your photographs and valuable paper artwork from yellowing, fading, or deteriorating over time, making them completely safe for long-term custom display.
Can I configure custom photo sizes in a single collage mat?
Yes! Unlike standard store-bought frames that limit you to matching grids, our builder gives you full control over your picture frame collage. You can freely mix and match vertical, horizontal, square, or custom window dimensions within the same multi-photo mat board layout to fit your specific vision.