First we made 3 box shelters - covered the boxes in the Styrofoam wrap (for insulation,

then covered that in heavy duty plastic (to keep them from getting wet),

and then with the space blanket to keep their body heat in.

We put carpet squares (bought a box of them at the local recycling centre for a buck) on the floor for comfort. My friend made the most expensive purchases which were self-heating blankets which were put on top of the carpet squares. She also bought a microwave disc which can be put under a blanket in the box and will give heat for up to 10 hours. This will be used when the temperature really drops far below zero.
Then we made the enclosure. There is a shed in the yard with an overhanging roof which made a natural place to set up the boxes. A very kind lady at the dog groomers gave us 2 bales of straw for insulation of our shelter. Thank you Lisa. We made a platform to set 2 boxes on and put the straw bales at the ends of the platform.



After that we put hooks in the side of the shed and hooked a heavy duty tarp over the whole thing.

Its not a pretty site, and until the first big snowstorm hits we won't really know how well it will hold up. But its already being used, so the cats know its there and we hope it will afford them enough protection when the worst of winter hits.
We enclosed one other area. On the back steps landing there is bench area with just enough space for one box. We put a sheet of wood over the benches, a tarp over the wood, and plastic all around the railing.

