We just received our black 8' claustrophobia the other day. Still needs to be put up and it's new to us. But to answer your question:
Originally Posted by asanve
Build frame on ply wood with 1x3 or 2x3 (the length of your own claus. of course) and start the frame ONE FOOT OFF THE FLOOR so the material does not drag/trip on floor. Our black 8' claus. from Scare Products is the 8' L x 7' H. Considering 8' tall ply wood & 7' H claustrophobia that's where you start it one foot off the ground.
Hope this helps!
Oh yea, PM if you want. I have the PDF file from Scare Products that is the exact step-by-step directions which came with ours.