How to Frame a Picture/Calculate the sizes


 * Keep a workbook of notes and measurements, so that you can track back specifics
 * Extra space at bottom of frame, unless frame re-use needed.
 * Always measure off the frame



Matt width - 5cm.

The calculations are in centimeters.

Which means that ...

you need this much frame prior to cutting: left + right + top + bottom

2*(-1+(2*)+(2*))+ 2 * (-1+(2*)+1+(2*)) = (2*)-2+(4*)+(4*)+ (2*)+(4*)+(4*)

Measuring for Mounts

 * Someone should merge this section into the above.

Calculating the Mount Size (to be cut from a sheet of mount board).
 * 1) Decide how much of the picture you want to show (add to, or take away from the art size) = WINDOW SIZE.
 * 2) Decide how much mount you want around the window (margins).
 * 3) *Top and both sides are the same.
 * 4) *For bottom margin allow extra 20% to compensate for the optical illusion which makes the bottom border seem narrower than it actually is.
 * 5) *Standard margin sizes:
 * 6) **Top and sides 50mm, bottom 65mm.
 * 7) **Top and sides 65mm, bottom 75mm.
 * 8) **Top and sides 75mm, bottom 90mm.
 * 9) * Allow for width of frame rebate by adding that amount to each margin width = MARGIN WIDTH.
 * 10) Therefore MOUNT HEIGHT = rebate allowance + top margin + window height + bottom margin + rebate allowance.
 * 11) Therefore MOUNT WIDTH = rebate allowance + right margin + window width + left margin + rebate allowance.
 * 12) Therefore MOUNT SIZE = MOUNT HEIGHT * MOUNT WIDTH