This was a real challenge as I did the whole project alone. 6x6 pressure treated lumber was used as posts and support beams. 120 lbs of quickcrete was used for each post and the support beams are bolted onto the posts. The swings were all made with pressure treated
lumber and I bought heavy duty mounting hardware for the chains. I bought the firepit kit at Lowe's and did the 4 block high enclosure. I had a lot of fun with this!