[Little]

Hi Tom. When we replaced the deck boards on our 35' gooseneck we used 2x6 rough. Basically corral boards. We soaked them down with linseed oil. That trailer is in SK Canada so isn't subject to the blistering sun like yours, but it seems to be holding up. We did no prep work on the lumber, just rolled it on. If I remember correctly one of us poured it on, other rolled. Oil came from a farm supply place in gallon jugs. Good luck.