Dog Shelter Dilema

There once was a man named Fred,
For his dogs he needed a shed.
The lumber was free,
but as you can see,
it only caused pain in his head.

Can you help Fred build a dog shelter using the donated lumber provided (SketchUp model)?

Come on, it's for a good cause! Comment here or in the Sketchucation Forums thread if you think you have a solution.  Fred, and the dogs, would certainly be grateful.