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Some do-it-yourselfers may swear by cinderblocks simply because they've used them a number of times previously without incident. However, there's a reason martial arts experts choose cinder blocks to break with their hands instead of 6 Ton Jack Stands - cinder blocks will crumble if significant weight or sudden shock is placed on them.
It's important to remember that cinder blocks are designed for a uniform load that's spread out evenly. Sure, houses and large structures are built with cinder blocks, but weight is distributed over a large number of blocks. Plus, in these applications, cinder blocks are meant to be laid with the hollow part facing up, strengthened with rebar, then filled with concrete to reach an effective strength level.
If you take a hammer and use it to hit a cinder block without any load on it, the block will crack. Add the weight of a car, and that crack will quickly turn into a crumble. It's easy to accidentally bang into a cinder block with a heavy steel part you're removing, or knock it with a wrench that's slipped off a nut. The internet is full of such stories about cinder blocks that crumbled and caused disaster.
Floor Jack Low Profile And for milk crates - if their thin construction doesn't crush immediately under the weight of a vehicle, it won't take long until a minor jostle causes collapse. They were designed to carry items that weigh about the same as milk, not to support the weight of a car or truck.
It's important to remember that cinder blocks are designed for a uniform load that's spread out evenly. Sure, houses and large structures are built with cinder blocks, but weight is distributed over a large number of blocks. Plus, in these applications, cinder blocks are meant to be laid with the hollow part facing up, strengthened with rebar, then filled with concrete to reach an effective strength level.
If you take a hammer and use it to hit a cinder block without any load on it, the block will crack. Add the weight of a car, and that crack will quickly turn into a crumble. It's easy to accidentally bang into a cinder block with a heavy steel part you're removing, or knock it with a wrench that's slipped off a nut. The internet is full of such stories about cinder blocks that crumbled and caused disaster.
Floor Jack Low Profile And for milk crates - if their thin construction doesn't crush immediately under the weight of a vehicle, it won't take long until a minor jostle causes collapse. They were designed to carry items that weigh about the same as milk, not to support the weight of a car or truck.
