The pen described below was originally designed to fit a corner in my kitchen where puppies are exposed to most household noises. The original dimensions were 5 feet long by 2 feet 6 inches wide by 2 feet 7 inches high including the casters. However, measurements can be adjusted to suit your breed and your available space.

Benefits:

1. A whelping box will fit inside this pen, allowing the new mother jump in and out of the box, while still containing her near the pups.
2. When pups outgrow the whelping box, the box is removed and the entire pen becomes a play area.
3. Housebreaking is initiated when pups tend to mess on papers at one end and sleep on the blanket at the other end.
4. When not in use, it comes apart for easy storage.
5. Many puppy buyers borrow these plans to build a pen that keeps the pup (and the house) safe when they are at work.

Construction Is Simple:

1. Base:Build the base support using 2inx4in boards. Cut notches large enough to accept a 2inx2in neatly.
   
2. Floor:Use 1/2in plywood or particle board. Cut to same shape as the 2inx4in base, and fasten on top of base with screws and nails.
   
3. Sides and Ends:The framework is made of 2inx2in boards.
4. Finish with 1/2inx1 1/2in wooden strip as edging around the base to close the "post holes". Use screws on each side of a post location. Sides will drop into these holes.
5. Varathane all wooden parts with several coats to "pee" proof it, and to make it easy to clean. Also your clothes won't snag on the wood.
6. Staple 1/4in wire mesh to inside faces of the side and end panels. The wire is stronger than door screen and cannot be ripped, the 1/4in spaces are small enough not to catch paws, and with the wire on the inside, the wood and varnish cannot be chewed.
7. You will need 4 hooks at each end. Measure the location of the gate hooks and make them the same at each end. That way all pieces are interchangeable.
8. Fasten casters to base.