John I know you built tour flat bet yourself and I believe you had it milled into ship lap like boards. So now it has been down for some time and I was wondering if you see much swelling or shrinkage in the decking through out the year? I'm still trying to decide what would to use on my 4E1 without the steel runners but just attached to my box bed rails with bolts.
Keith, yes looks like it was completed in November of 2012. So it was in VA from that time until April of 2015 and from April of 2015 to present here in OR. I don't recommend ship-lap as thick as mine (1-7/8") because of the weight (heavy stuff). I would have to say that it has held up well. Nearly all the time in VA it was outside, here in OR mostly under a car port. I do coat it with a penetrating stain made especially for hardwoods once or twice a year. The deck was made from Apitong hardwood from Southeast Asia:https://www.trailerdecking.com/Products ... stoAdd=523 . I also used SS grabbers to mount it. Very little cupping. only one board that has a little separation about 12" long and 3" wide. My plan was to eventually go over it with a sander when it got bad but it is far from that state. My guess is that I will never have to sand it or replace it. I also made the stakes from the same wood by ripping the boards in half. For the most part they have stayed true but one or two have warped a little. I have a couple to replace because I backed into some railing at the land fill. All in all I would definitely go this route again but with much thinner boards although the thicker boards allowed me to make the stake posts using the same wood.
http://studem15a-20.blogspot.com/2012/0 ... board.html