saw horse

noun, a wooden frame placed on a frozen lake onto which a ferry ramp can extend, allowing cars to drive between the ferry and the ice

“On that old boat, we would run as long as we could. Well, then they got the smart idea of loading cars off the ice, and they had a saw horse. We put the ramp down on the saw horse, and then you put two planks down and drove the car up with the planks on to load her.”