> Blocks yes, but planks? What is a plank, but a block of a certain dimension?
All I'm saying is that wood is no more immune to overload and failure than any other material. It is the quality of the materials, and the design, that determines how safe something like this is. The ramps I use are these curvaceous stamped-metal stackable things. Look like something you might have got at Sears in the 70's. I have three sets now, all green. Thick metal, curved so it's strong. But still could fail if overloaded. A dramatic improvement in overload durability would probably be to attach wood blocks underneath, so that if it did start to collapse the block would backstop it before the metal deformed enough to lose its strength. Wouldn't add a lot of weight, but would prevent them from stacking for smaller storage needs. -- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
