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Old 11-21-2014, 10:34 AM   #11
Sean Hang
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Join Date: Jul 2013
Location: Sugar Land  TX
Posts: 35
Re: lifting platform

How do you guys make a 3 layer platform without the plywood warping? I hate how my platform "claps" against the concrete every time i drop the weight.
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Old 11-21-2014, 01:45 PM   #12
Marshall Flagg
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Join Date: Jan 2011
Location: Gardnerville  NV
Posts: 374
Re: lifting platform

Cooper is right on I think. My floor died because it is old and it had a crack started already. A modern garage floor would hold up just fine. I think a bumper that has too much of a dead blow contributes as well but that is just a theory.
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Old 11-22-2014, 11:08 AM   #13
Keith Miller
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Location: Lewisville  TX
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Re: lifting platform

Originally Posted by Sean Hang View Post
How do you guys make a 3 layer platform without the plywood warping? I hate how my platform "claps" against the concrete every time i drop the weight.
First, try to get as flat as possible plywood. Then, when you lay it down, before screwing it down, put the middle bowed portion up and place weights on it to flatten it out. You might have to wait a couple days. Then when you stack the sheets, screw down any bowed portions, this would be a good time to actually use liquid nails to glue it down!!
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Old 12-30-2014, 04:14 PM   #14
Cory House
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Join Date: Feb 2012
Location: New Castle  CO
Posts: 394
Re: lifting platform

I've seen people mention just screwing the plywood together (no glue) so the platform could be disassembled if need. Are you just screwing in the mats as well (no glue)?
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