How to Build a Dog House
Building a shelter for your dog is very important for them to have a space to sleep and be protected from the elements. Following are two very useful websites with plans and instructions on how to construct your own dog house.
Please note that these plans do not include insulation. Consult with your local building centre for advice on ways to insulate your dog house. Although blankets may seem like a good choice for bedding, they aren't. Blankets absorb moisture and become frozen blocks. Always use staw as bedding in your dog's shelter. As well, ensure that the insulated floor of your dog house is a few inches off the ground to ensure its stays dry.
http://www.buildeazy.com/doghouse_imp.html
http://www.instructables.com/id/E0U0EJ77DYEV2Z5BWG/?ALLSTEPS