free dog house (Ruff-Hauz) for a large or medium sized dog
it is made up of two plastic pieces. 
it is approximately  38L  x  29H  x   31W. 

it looks like:

http://www.petco.com/product/5606/Petmate-Ruff-Hauz-Insulated-Pet-Shelter.aspx

send me an email if you are interested.