The lid I built wasn't for a beardie (it was for a leo), but it fits snugly and looks good.
When I bought my tank (10gal...much smaller than yours likely), I also bought a rectangular light fixture that fits in the corner (we leo people don't need to deal with multiple fixtures and UV and such...). So I needed a snug fitting lid that could make this shape:
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Light | |
-------- |
| Lid |
| |
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Man...I hope my kickass drawing comes out right! (it's not to scale)
So What I did was buy some aluminum screen (a roll cost $6.99Cdn at Home depot) and some baseboard trim. It's 1/4" trim. I bought some 'reverse round' which has a 2 flat sides, and a curve into it. You can buy simple 1/4" square trim too, or really decorative fancy mouldings. I think an 8 foot length of it costs about $4Cdn.
So what I did was build a lid out of the screen and trim. It cost me a little over $10 and looks great. I spent a little more to get the oak trim (I liked the look of it more). but you can get cheaper pine and paint it up, or whatever.
To fasten it all together, finishing nails will work fine if you predrill the holes, or even screw nails. you can staple the screen to the trim on the bottom and it looks good from the top.
I had a hot glue gun handy, so I used it to attach everything together instead. It was fast, and easy. And if something didn't fit right, I could heat it up and take it apart to try again. I don't know if hot glue would work well for you, or if the higher heat of a beardie enclosure would melt it. I guess that's something to look into.
The lid sits snuggly into the frame of the aquarium,and is nice and light so when I take it off to feed or clean, it's not a major chore. No more moving light fixtures either...
Good luck.
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Blaine
0.0.1 HY/Patternless/Normal Leo (Echo)