This is an extension pen for the Jonart whelping box. It comes without a floor.

• Won’t bend, shake, lift or breakdown

• Framework is so sturdy you can lean on it and even sit on the wall panels. 

• Made of a heavy duty plastic frame and FRP Plastic panels (like wall paneling, only plastic)

  • Not the corrugated stuff, it’s safe, hard, strong and durable. 

• Door inserts that allow different heights to let mamma out, keep puppies in

  
  

Jonart Whelping Box Sizing Chart

All outside dimensions are nominal.  Extension pen fits inside the dimensions noted below.