Start with a basic wooden box. You can build one
from plywood (as I did), or adapt from a crate or shipping container.
I settled on dimensions of roughly 25"x25"x25". I arrived at
this scientific calculation by measuring the heated pad (that would
lay on the floor) and the top of Minnie's tail. I wanted her to
have room to walk in the box and turn around without zapping her tail
on the metal light bulb shield, but... I didn't want the box to be so
large that the light bulb heater would be ineffective. Note the
cutout which was made to facilitate the coffee can light shield.
To make access to the interior of the house convenient, we used
inexpensive hinges, which served to anchor the house to the base
while providing access to clean the inside of the house.
Access to the house is provided by an angled ramp (1 x 6"
board) and fastened to the legs using a board or angle iron.
The ramp also provides exercise and a scratching area.
