If you are at handy, easy to make from pvc pipe and pvc lattice. You can secure with zip ties.

BestPet® Black 32" Heavy Duty Pet Playpen Dog Exercise Pen Cat Fence B
by BestPet

Sorry, I can't figure out why I can't post the link, but you could do a search and find it.

I just bought this one on Amazon. It was $60 plus $30 shipping. Love it. They also have them in 40" height for about $75, but for puppies the 32" height is great.

Each panel only weighs about 6 lbs, and they are connected by a pin; easy to put together and portable.

Mike

Best Pet. I got a 24 inch high, 8 panel with door for $40.00 on ebay. I love it. It's strong enough that pups can't knock it over, and you can make it smaller if you want to take the pups to a show. I put it at the end of the whelping box so when it's time to potty, pups jump out of box into xpen.

I built my vinyl lattice/pvc pipe pen several years ago and it is still like new and easy to clean. It's also easy to take down for storage. Email me and I will send you pictures.

The BestPet is exactly what I was looking for! Thank you!