The size of our concrete pad is 26x30...can I use the kits to install the court even though the size is not exact.

Yes, you may install the court on your concrete pad. The 20'x24' court would work perfectly, however you may get the 30'x30' if you need a bigger court. These tiles are easy to cut, so you can use a tile cutter or power saw to cut them to fit your space as needed. Another option would be to build your custom court using the flooring designer on our Outdoor Sports Tiles. This designer will allow you to design a court that would fit your space perfectly.