How Much Weight Can A 4X4 Support Horizontally. A piece of yellow pine in an inside dry location can hold 1200 pounds per square inch and a 4 x 4 is really 3 1/2 x 3 1/2 or 12.25 square inches times 1200 is 16150 pounds. I was thinking of joining each 4x4 with a 4 spacer and going across the ditch about. I want to build a bridge for my boat.
Last edited by a and as was mentioned, you will get a good amount of bounce in the middle.
To figure out how much you can safely carry, take 1000 pounds and subtract the weight of the driver, passengers, gas, and any accessories you've installed. Per the safe load table in wsdd so, the short answer. Minimizing weight would be good too. A regular post/question i've seen is how much weigh a given frame can support. Capacities also change depending on how vertical supports are positioned along the horizontal top track. Naturally, there's a direct correlation between the weight a drone can carry and the top speed it has. So how much weight can a 2x4 support, exactly? L from its highest point to its lowest, a total distance of 0.57 m.
