Starboard (
link) is a polymer. Its what the boat industry uses. I find odd pieces on eBay that fit my needs. Not cheap, but its completely waterproof, light weight, and rather stain/scratch resistance. Basic wood tools can cut and route it. Youve probable seen cutting boards made from it.
The trailer is working great. Its still needing plenty of improvements, but thats how I like it.
Nothing improves camping more than making the cook's life a tad easier.
Incremental improvement, field test, repeat, repeat.