My 2 cents from only 1 personal experience. /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gifI built one of the S----masters 25 by 40 "A" arch buildings 4 or 5 years ago. I can see a lot of experience here on the previous comments. We had about 10 people and we needed all of them. The building was extra high and that made it tougher. I did not use the channel approach, they sell an optional steel piece that gets embedded in the cement before it dries - this is the only way to go if you put one of these up, well worth the extra money. I did the trenching, stone and forms one weekend, poured concrete the next, put the barn up the follwing weekend, and installed the end panel and re-tightened all the bolts the following weekend, but it was tiring work! Now that I know how, I'd do it again, but I would pick warmer weather, preassemble all the arches ahead of time, and get a big crew of friends. My neighbor who helped me, wants to put up 2 of these for horses and hay. It is a great garage/storage, but you could never heat it. My final investment was about $6,500 for 1000 sq ft. with 9 to 16 ft of headroom and no interior posts. I couldn't touch that with regular construction.