This is safety glass, but it's very old glass <1994. So probably not the kind that will smash, but kite mark should tell you if it does.
I want to make a new door for my greenhouse out of it if I can, but that of course means cutting it down.
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2I would enlarge the door opening or I see a big mess in your future.– Ed BealMay 7, 2020 at 14:42
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No can do - the glass is far too big for that. But to be fair I was expecting an answer along the lines of "you can't"– Ne MoMay 7, 2020 at 15:01
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1Why does <1994 mean it won't smash? Toughened glass smashes - that's what it does. I love the fact that 1994 is considered "very old", as well!– SiHaMay 7, 2020 at 15:04
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Ha, well, it is 26 years ago! :) I mean it has been dumped at the allotment since at least that year according to people who have been there that long - it could be decades older, I thought the maker's mark would give a clue there. I guess I thought that the safety feature of smashing was more recent than 1994, too.– Ne MoMay 7, 2020 at 15:26
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1 Answer
Safety glass is either tempered, laminated (with plastic layers for shard retention), wired with mesh, or a combination. Rarely can any of them be cut without detonation. I would not attempt it without substantial safety gear.
answered May 7, 2020 at 15:29
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2One more thought. If you ever have to replace a piece of tempered glass (fireplace door, car window, patio table), they need to measure and cut the glass first, then run it through the tempering process.– SteveShMay 7, 2020 at 18:14
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+1 for "Detonation". I had a car windscreen shatter as I walked past it once - it made a hell of a bang.– SiHaMay 7, 2020 at 18:30