Thomas, Rick Tejera provided Jim Fly's website URL. I'll just add that I bought the plans & hardware ($44). I don't have a home workshop, so buying the hardware saved the time and money it would have taken to track down those materials. If you're well stocked in wood screws, etc., the hardware may not be of interest to you. I also added 6-inches to the height of the chair. This was for two reasons; to make sure I wouldn't come up an inch short when my Obsession is pointed at the zenith and to give me more back support when observing up high. And at the extended length, the chair still fits comfortably in back of my Isuzu Rodeo with the rear benches folded. If you've got a well stocked home workshop and are handy at woodworking projects, you could probably reverse engineer the design as has been suggested. But for the "ruin it yourselfer" (that would be me), the plans and hardware are a great value. Regards, Bill in Flagstaff Thomas Hilton wrote: >Just was wondering where the plans from Jim Fly for his >Catsperch Pro adjustable height observing chair. Doe he have >a web site? -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.