Hi there,
here are the specs for my pen.
1.What kind of mesh is recommended?
I originally used regular cloth mesh, but the neighborhood cats continually walked on the pen, and jumped on it, while every so often, dogs would put their paws where they din't belong, and rip! there goes the screen. I had to upgrade. I now use 1/4" wire screen mesh. Much sturdier.
2.Wood used.
I just went to Home depot, bought 3 12'x12" pine planks. I treated the wood with a weather seal, and let it sit for almost two weeks. These are the base boards, which form a rectangle. We also bought another 12x12" and a 6'x12" plank, and treated these to prevent warping as well. We cut the 6 footer at an angle to make two slopes. Drilled these to the 12 foot top plank and you have the top of my pen. The lid is comprised of three sections. so 3 4'x6' sections. we stapled the wire mesh under weather sealed 2"x2" pine planks. Use sheers to cut the mesh. Put handles on the two end pieces, and the middle piece mainly stays immovable.
Other things to consider:
-The bottom of the slope had a gap between the lid and the pen itself, so this was remedied with with weather-stripping nailed to the base of the pen.
-The idea of putting a bottom of the pen was briefly toyed with, however it was too much work at the time. I kinda wish I had now, because then my Torts wouldn't have been able to dig out releasing my lizards. We sank the pen 2 inches, to prevent such escapes, but with Tortoises in the picture this was to no avail.
-four Spring-locks were screwed into the pen with the lock portion screwed into the lid. They were placed on each of the four corners. It provided for a very nice hold.
-I had one WC Collared Lizard live in this pen for six years. His health was exemplory, and he fathered a clutch of four eggs. The lizards in general showed a vast improvement in health, eating habits, and personality over indoor housing.
I think that about covers it. I planted wildflowers, and low bushes on one side, made a nice rock pile in the middle (it has over 40 rocks) and sand with old Joshua tree wood on the remaing third.
Hope this helps,
-Phil