How to build a heated, around A4 size, greenhouse? ?

It's a around A4 size at the base and i need to know what materials would be suitable.

chuckr448 years ago
- Take a Rubbermaid container of the right size, remove top, invert. - Now put the top under it. Under the top (between the table and container top) put a heating pad. It's just the right temperature for seedlings. - Add some holes in the top to let hot air escape so your seeds don't get cooked on wam days. - Rubbermaid containers come in a variety of sizes but I haven't seen too many that are that small but deep. You might have to go bigger to get the deeper size, you want one at least 12 inches deep. And the top turns into a waterproof tray to protect the heating pad.