Would a toughened glass table top make a good round window?

People sell or give away glass topped tables pretty often, and on some of them the glass just sits in a metal frame and can be easily removed.

Any reason this wouldn't work for window glass? It wouldn't be double-glazed, obviously, but I was thinking if you had two you could put one at each end of a wide windowsill (such as in an earthbag or cob house, with thick walls), have both the indoor and outdoor part operable, and use the space in the middle to grow pot plants or whatever.

Thoughts?

Yes I have done it many times.
Also great on a roof as a sky light

John C Daley wrote:Yes I have done it many times.
Also great on a roof as a sky light

   John have you ever tried to use the tables with an 'umbrella hole' in it's center?

...If so, what is the best way you have found to seal the umbrella hole?

yes.
I have used a stainless steel patch that is available to use on fibreglass shower booths when the taps are moved.
They are domed slightly, have a threaded stub bolt welded to the inside and a bar wide enough to go across the hole each dome is intended for.
With a washer made by myself they work great when used as a skylight or a window.
In the shower recess you dont use a washer.

Aha! I know someone must have thought of it before I did. :p Good to know - thanks! I kind of like the idea of using the top of a cable spool, cut in half, as shutters.

  That sounds like a great fit for shutters, Sarah!

Those spools come in pretty handy that's for sure!