Site information
Sitemap
Every page on FramingMath, grouped by what it does. Search engines can use the XML sitemap instead.
Main pages
- Home — Pick what you're framing and jump to the right calculator.
- Framing & matting guides — All the how-to guides, grouped by task.
- About FramingMath — Why the site exists and how the math is checked.
- Contact — Report a wrong number, a bug or an idea.
Calculators
- Multi-opening mat calculator — Even collage grids with a per-opening cut list.
- Mat border calculator — Artwork plus border width → opening and frame size.
- Double mat calculator — Reveal, top opening and under-mat window sizes.
- Bottom-weighted mat calculator — A deeper bottom border so art sits at the optical center.
- Frame size calculator — The exact frame size to order.
- Mat opening calculator — The window cut size from artwork and overlap.
- Glass & acrylic size calculator — Glass, acrylic and backing cuts from the rabbet.
- Will it fit? checker — Check a print against a frame, snug or matted.
- Cross-stitch framing calculator — Mat, frame and a fabric-lacing check for needlework.
Size charts
- Standard picture frame sizes — Common US frame sizes in inches and centimeters.
- Standard mat sizes — Pre-cut mat sizes, their openings and the prints they fit.
- International frame sizes — ISO A-sizes and metric frames next to US sizes.