I didn't use the supplied anchors.. I installed mine on a concrete slab so I just used some 1/4" tapcons with washers that I already had laying around.. I used 6 2.5" for middle section and 4 1.25" for each post. Install probably took me about 20 min to put up. It's only been up for about 2 months and used maybe 12 times. I left it open/extended or exposed for 2 days. It rained one day so I left it open for another to dry. It will slightly start to sag in the middle when left open so I don't advise this to be used as a permanent enclosure. I'll also point out I have one of them fully extended, you can't make it any tighter, this one also sagged a bit in the middle as well. However it can be corrected by guiding it in right as I'll explain below... It is a canvas like material so I wouldn't recommend putting this around or leaving it open near a wood burning fire pit, hot ashes may burn through.. My only concern is how long the spring mechanism will hold up, only time will tell. That, being said, it's perfect for privacy around my hot tub! NOTE: When closing it, letting it retract in, try to use the top of the material to guide it in perfectly straight using the top of the internal spool, keeping it on track. My wife is only 5'2 so she was a little to short to guide it in as I mentioned. Failure to guide this in correctly will leave it looking sloppy the next time you use it, and it also won't seem closed all the way. This method will also help keep the material look straight when opening again as this will help correct the sag. Hopefully this will help some people out because there isn't any instructions for operation and maintenance..
Alain MORVAN 
