Calibrate all of your shop's tape measures and scales.

Greg Fremstad

SGF, Supreme Grumble Framer
Joined
Sep 4, 2002
Posts
1,110
Loc
Eugene OR
Measure all of your shop's tape measures against each other and against a good machinists scale. I have done this in many frame shops in my travels and found a lot of poorly calibrated tape measures. Could be why you might have size problems.
 
Plan B: You can do what I have done and ban tape measures from your shop. I probably have around 20-30 metal rulers. A tape measure will never touch a moulding of mine. I have metal rulers from 6" up to 6' including a 12" and 18" center finding rulers for finding the center of a frame when saw tooth hangers are used.
 
I like to use rulers as well.
While I do use the free schwag tape measure from LJ (from many years ago) at the design desk while with customers for general dimensions, I do precise measuring/marking with a steel ruler when needed.
I have 12", 15", 36", and 48"
I also have a wooden yardstick, which is about 1/8" off measure at the end compared to my steel rules.
Plus a couple of general tape measures for non-framing uses around the shop.
 
I won't be getting, storing or using a 16' rule...
Oh, c'mon Dave. Shirley they have a surplus spare at the Bureau of Weights and Measures you could pick up cheap!
 
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