Laying a tank on its side

I have a 30x12(w)x18(h) tank -- 30 gal, I think -- that I was considering laying down sideways, and using some screen doors for the front (which used to be the top). Since bp's really aren't climbers it doesn't need the extra height, and it would have a 30x18 floor space. However it would be closed up all on all sides except the front. Any thoughts on this?

Just remember, if there's a way, they WILL get out.

I will make sure there is no chance of escape. I am just wondering about whether or not I should have it positioned this way for whatever reason, mostly for any effect on heat distribution, or anything else I haven't thought of.

Well, heat rising and all I would think you'd be retaining moisture and humidity better. Then again I have never tried that (ok well with a 5 gal and for a pinktoe tarantula but apples/oranges). Air exchange would be my biggest concern along with integrity of the glass (you'll have to look and see how the panes are joined) supporting its own weight distribution in a way it wasnt designed to. With the screen/vents up top the rising air can help aid in air exchange (air rising out of the warm side draws air in through openings on the cool side).

I know some folks here have done it before i remember reading a post to that effect - maybe they will chime in here.

Probably a smaller tank would a better choice to lay on its side. A 30 gallon, I would think there would be weight distribution issues considering it was meant to be layed the right way up. Also if for some miraculous reason your glass cracks, the whole thing will cave in on your snake. Just my two cents.