Multiple Window Collage Mats
A5 - 20x10 Mat Board

A5 - 20x10 Mat Board


Our standard multiple openings mats come in our very popular economy White Core matting in Smooth White and are sold in units of 1, 5, 10 and 25 for volume discount. For larger quantities please contact us for pricing. Item A5 is 20x10 on the outside with 4 windows to fit 4x6 photos. This layout works well for both portrait and landscaped orientations. This collage mat board design is also available in our most popular matte black wood picture frames complete and ready to hang and display your artwork.

Besides our large select of standard photo mat board sizes with single openings, Redimat is pleased to offer our selection of photo mats with multiple window openings. If you like item A5's design but would like it cut from one of the other color we offer in White Core all you have to do is let us know by email or phone. The pricing is the same as long as all of your selected mat design is of the same color.

The selection of specialty and custom mat boards found here covers some of the most popular designs including "K2 School Years", "Name Plates", panoramic collages for a theme of images, collectible trading cards and are a fabulous way to pull together groups of family or vacation photos.

Picture mat board with more than one window is sometimes referred to as collage photo mats and all of the standard designs may be cut from any of the matting materials and colors we carry from economy grade up to the finest museum 8ply cotton rag boards. If you have your own layout we can custom cut that for a virtually unlimited number of custom options with multiple window openings.

To complete your mat board project we also carry a wide select of backing or mounting boards that can be added to your order. For options please see the main menu under Mounting and Backing. If you need Clear Bags for protecting and selling your matted prints please see Clear Bags from the menu.

Purchase the pre-cut, multiple opening picture mats you are looking for at Redimat. Please contact us for custom pricing or more information to order these in other colors and mat board materials.

All of our mat board is precision cut for perfect craftsmanship with our computerized mat cutters and skilled operators in the USA.


  • Suitable for the everyday non-conservation framing of posters, art prints, photographs, school & craft projects
  • Bright stay-white core
  • Smooth White surface paper
  • Buffered acid-free surface, core, and backing papers
  • 4 PLY (1/16" thick)
  • Window mats are precision cut at a 45 Degree Bevel
  • Clean straight outside edges
  • Brand Name: Crescent
  • Made in the USA