The designer has chosen to add a 3" mat border on all four sides, so the outside mat dimensions will be 13 3/4" x 17 3/4". The mat for an 8" x 12" photograph will have an opening of 7 3/4" x 11 3/4" (allowing the mat to cover 1/8" of the photo on every side). It is often helpful to "round up" when dealing with fractions, to create whole numbers which are easier to work with measurement. Add the amount of both the top and the bottom borders to the vertical opening Add the amount of both side borders (left side and right side) to the horizontal opening measurement.Ģ. When measuring art for matting, choose an opening that shows what you want, and covers what you don't want.Īfter the size of the opening is established, add the amount of matting desired.ġ. The mat can cover a hole or smudge on one side of a print, or center the people in a photograph.
The mat must overlap each edge of the artwork by at least 1/8" in order to prevent those edges from peeking through (or actually falling through) the mat opening.īeyond that requirement, the mat opening can improve the presentation of the art. To figure the dimensions of a mat, determine the size of the opening (window) by measuring the artwork to be matted. This allows a comfortable fit, and leaves a bit of space for expansion as the mats and backing boards react to changes in heat and humidity. The mats, backing boards and glass should be cut 8" x 10". A so-called 8" x 10" frame should actually measure 8 1/8" x 10 1/8" when measured tightly from end to end, inside the rabbet. The rabbet size of the frame, whether ready-made or custom-made, should be slightly larger than the mat, glass and backing. Lay the frame face down and use a ruler inside the rabbet to determine the size from end to end for both the width and the height. The rabbet measurement determines the size of the mats and glass. A fraction of error could result in buckled artwork, so do not take chances with the ruler.įor framing purposes, frames are measured from the back side of the frame along the inside edge, called the rabbet. Cloth measuring tapes and yardsticks are not accurate enough. Measuring should be done with a good quality wooden or metal carpenter's rule or artist's rule. If the mat will fit into a frame, the frame must be properly measured. Artwork must be carefully measured to determine the best opening to cut. Adding decorative ink lines to your matsĪccurate measurements are an important first step in mat cutting.Cutting a v groove using a logan V groover (discontinued)Īdding decorative ink lines to rectangular mats.Cutting a v groove with the tape – and –flip method.Cutting a v groove mat with the trim –and-tape method.
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Cutting a single mat with a simplex-detailed.Cutting a Single Mat With a Simplex-Basics.Cutting Single Mat Using a Straight Edge.Trimming Mat Board to Size with Simplex.Trimming Mat Board to Size with Compact.Trimming Mat Board to Size with Straight Edge.
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