Thick plywood can handle a lot. My dad is a general contractor and uses sheets of 1 1/2" plywood to prevent his forklift (~24,000 lbs) from sinking into soft gr

Thick plywood can handle a lot. My dad is a general contractor and uses sheets of 1 1/2" plywood to prevent his forklift (~24,000 lbs) from sinking into soft ground. At that weight a single sheet (per tire) crunches a little, but it holds up just fine.