Single Scratch-N-Perch. Available either flat (pictured) or cradle type perches. This single pole and perch design is very sturdy (these are Burt's cats) and will stand up to the wear and tear of your active furballs.
Ramps. These are popular with people who have Dachshunds and who wish to stop their dogs from jumping onto couches and beds. This helps to minimize the risk of back problems. They can be used by people with cats that are older or who have arthritis. I have standard size ramps ranging from 12" H x 24" L to 25" H x 48" L, or they can be ordered in virtually any height and length. I just did one that was 31" tall and 51" long for someone in suburban Minneapolis, MN. They are made of wood with a plywood ramp deck covered with carpet and are $75 and under. Call for pricing for the size you need.
Multi Level Tower. The version pictured has 48", 36", and 24" posts and a tunnel. Most of the ones he makes have 4 standard size cradle perches. It is also available in a 3 level version and ones that are taller.
Corner Perch. This is unique. As pictured, there are 3 levels - 2 extra large cradle perches and a triangular top deck measuring 24" along the edges and 31" across the front, and can accommodate 4 cats. The posts are 39" and the base is 25" square. It is also available with either 2 levels, (1 cradle and a top level), 4 levels, (3 cradle and a top), or 4 levels - 2 cradle, a tunnel and a top level and 52" posts.
I'm sorry. Burt is not responding to any contact overtures and I don't know why. I have tried numerous times to follow up with him and he seems to have disappeared. I'm sure that when he can, he will come back to us. Meanwhile, I have information to help you build these yourself if you want to.
Meanwhile, I found some really neat trees! Check these folks out: