I am on the road right now (without trailer) but a few thoughts that I have learned:
1) Don't use screws or nails. Use bolts with either a lock nut or lock washer
2) Paint the boards BEFORE assembling, easier and you get the ends covered
3) Have seen a number of builds (will look when I get home for the links) that used fiberglass on the corners / seams. Would either do this or run a corner of stainless or aluminum for strength if using off road a lot.
4) I am in the process of recoating the trailer with bedliner as the paint was being an issue with pealing in the hot sun or with rocks or wear and tear. The bedliner was a good price ($100) for the kit and will do the entire trailer.
5) (this one I am still struggling with) I think I would / should have gone bigger. I love my trailer but can see a lot of benefits of a walk in, especially in bad weather or as a guest house.
6) I do love the fact that I used 2x4 & 2x2 for a frame as I can drill into and hang from the frame
7) Find a good idea for the lid if you are using a front like mine to open. This is the only place water gets in and in a torrential downpour driving for 8 hours I do get some water inside.
😎 Remember that you are using this as a mobile unit and standard stay in one place construction may not work. The back door on the trailer is amazing but it would sag when used offroad so I have since put a board under it to stop that and it works so much better.
9) Measure what you will be carrying and even lay it out in the basement or garage for a test fit. I have done a lot of extra mods for things that I could have built into it in the first place like a attic for the lawn chairs and paddles
10) Have fun, actually we had a lot of fun building it and would do it again just for that experience with the boys.
2017 Ford Transit
EVO Electric bike
Advanced Elements Kayaks