GPW wrote:After trying both , we found out we like neither... Both need some kind of treatment to survive... We went to using boards instead ... we used boards for our trailer floor and no problems , and if anything goes awry , they can be replaced one at a time ... Originally we had an OSB floor and that didn't last ... In our Damp climate , plywood always eventually delaminated , despite different waterproofing attempts.
Just plain pine boards?
GPW wrote:Steam , they were "clear and dry" treated pine, well primed and painted , However I have an old all steel cargo trailer with a plain board floor ( untreated, unpainted ), that's still in great shape after many years . I do believe the key is , the sides extend down past the floor , so the floor almost never gets wet .
tony.latham wrote:Just plain pine boards?
Keep in mind that boards –-unlike plywood-- swell and contract width-wise as the moisture content changes. I've got a wooden deck on three sides of my home. There's a reason it was installed with gaps. If they were installed without gaps, there would be real issues. Sometimes the gaps are 3/8" and sometimes they are 1/4" depending on the weather.
I've got a utility trailer that's decked with 2" x 6" fir. The same thing happens.
We haul our camper through rainstorms that expose the undercarriage to torrents of moisture and over super-dusty roads. And of course, no dust or moisture gets inside. (The bottom of the plywood floor is sealed with epoxy.)
Tony
We caulked between our boards ... No problems ...
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