Let the location determine the height. I have three box stands and have helped friends build several. These box stands range from 5 to 11 foot floor height. I take a ten foot step ladder to the location and move it to different spots to determine the location and floor height.
Took the ladder out last week to do just that. I was glad I did. I found that the original location I had planned wouldn't work as it would have had to be at least 18 foot tall. The current location I have planned is going to be 8 feet tall and could actually probably get by with 6'. I started today and was able to get the floor and tower finished. Should be ready to start framing the walls tomorrow.I ran 2x8's for the rim joists and 2x6's for the floor joists.
**Missed my on center mark which is the reason for the extra 2x6 floor joist. Screws stripped out when trying to fix it so it was easier to just add another.
Floor joists are screwed into the rim joists and then ran an extra ledger board under the floor joists.
Got the tower built and cross-braced. Used 4x6's for the posts. Tower is 7x7 so the blind will overhang 1.5' on each end of the blind since I'm building it 10'x7'
4x6's were notched so that the 2x8's would rest on the notches. It will then be bolted to the 4x6 posts.
Used some fork extensions on the tractor to lift the tower back off of the floor and then flip the floor right side up. Ready to start framing the walls.
Had some extra help for a little while today.
Quick question for you guys. I'm starting to second guess myself on only using a single 2x8 for the rim joists instead of a double. Do you think this will be sufficient? The total span between the posts is just under 7' on center. If not, I have the tower boxed around the outside of the posts with 2x6's top and bottom, both above and below the cross bracing. I could move the 2x6 to the inside of the tower posts and butt them up underneath the floor joists. These would basically serve as and extra beam underneath the floor joists. Opinions?