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From: Russell Perry
Remote Name: 184.108.40.206
Date: 11 Jan 2008
Time: 22:25:31 -0500
Great Question! Thank you for asking because it shows me that I haven't included it in the Facts & Info page or the Glass Brick Calculator Page. (I'll fix that!) The answer Alice is this: Yes the frames are thicker because they are actually 2 frames (1 inside the other) and you need to add 100mm to the normal mortar frame size measurements (ie: if normally the measurements were 890 wide x 1090 high for a fixed mortar panel then the measurements for an opening mortar panel would be 990 wide x 1190 high. I hope this helps and thank you for waiting for the xmas break to finish before requiring an answer. All the best for 2008!