Mat margin ratios, optical bottom weighting, standard frame dimensions, and custom framing math.
Calculate outer frame dimensions, mat border widths, optical bottom-weighted borders, glass sizes, and window cutouts with accurate bevel diagrams.
Calculate layout dimensions and spacing between apertures for multi-opening picture mats. Structural margins, border ratios, and layout formulas.
Master US standard picture frame sizes. Compare retail frame openings, pre-cut mat dimensions, and learn when sizing up saves hundreds over custom framing.
Why museum curators use optical bottom-weighted picture mats. Mathematical formulas for calculating mat border widths, optical centers, and bevel window cuts.