I don't see any reason to use thicker with the standard cross sills, can't imagine what you'd carry that would need more strength than 3/4" over that short a span, providing the grain is good
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
