Not sure which style you are looking for:
New and used play yard pets, Dog Supplies on eBay.ca
I bought this one:
North States Industries Super Yard XT Review and I love it! It is available through Walmart if you have one of those nar you and most any place that sells children's gear will also have this product. Do you have Toys R Us? That is where I got mine. I loved the flexibility of this product. You can take it with you easily if you go to a park, use it out in the yard, in the home, change the configuration, add another set or the extension pieces which are also available. I bought the extension pieces & that made it big enough to cover the area underneath an EZ Up Tent. Then I bought another set and I can make a huge doggy enclosure now! Perfect for family get togethers where I want to take them along but don't want to risk them getting lost in an unfamiliar area. Sometimes you can even find these at children's resale shops for low cost.