Originally Posted by Nonsequiteur
I priced out glass for the sides and door at one place and they were asking $73 so not too bad, I'll have to find out what they want for the back panel as well. Part of why I was looking at pvc panel or this was to save on weight and to make a background slightly easier. I figure attachment with the pvc panel would be pretty cake if you screw wood to the panel or glue cork to it. I don't know, I'm still considering what route I want to take. I built an 18x18x36 and regret not going taller because it looks awesome, but I'd like some more vertical room for growth. Definitely don't want to tear it apart though.
One thing to keep in mind is that the taller you go the less light reaches the bottom if you have plants in the substrate, that will matter. Light follows the inverse square law which is a real pain to deal with. If you say increase the height to 3 feet tall (arbitrary number on my part) you are going to need to pay a lot more for good lighting. I would be hesitant to go over 30 inches tall if you are trying to save money.. or just give up on planting in substrate and then it doesn't matter, epiphytes can be planted closer to the light on background/rocks/wood.