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Old 10-28-2014, 01:53 PM   #1
Mathieu Corriveau
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Floor issue

Hi,
I opened up my Affiliate 6 months ago and things are going super well.

I have some problem with my floor though.

See, I opened up in a garage, so the flooring is off angle with a drain in the middle. I had to level out the floor, see picture attached, it explain pretty well the situation.

So below the rubber mat, I have a 3/4in plywood screw on top of my wooden structure.

The problem is that as weight are being drop on the floor, the plywood is breaking and now the floor has some soft spot when you walk on it.

Any of you had that problem before ?

Another layer of Rubber mat ?
Another layer of Plywood ?

Please share your ideas, thanks!
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Last edited by Mathieu Corriveau : 10-28-2014 at 02:06 PM.
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Old 10-28-2014, 02:31 PM   #2
Sean Smith
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Re: Floor issue

I'm curious as to why you decided to put your gym in that location. Do you own the building?

If you own the building, it would be much easier, and probably cheaper, to level the floor with concrete. You went through a lot of lumber, cutting, measuring, and nailing to get your floor. If you can't level the floor with concrete, you need a lot more bracing. Any engineer is going to tell you that if you intend to drop heavy weight on that, you have to brace it a ton. Quadruple the bracing and have specific areas where you can drop the weight.
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Old 10-28-2014, 02:38 PM   #3
Mathieu Corriveau
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Re: Floor issue

Thanks for the reply.

I don't own the garage, but the location was dreamy so I had to go with it.
The landlord didn't wanted the concrete in there.

How far away the braces would need to be ?
2 in appart ?
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Old 10-29-2014, 06:13 AM   #4
Thomas Malone
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Re: Floor issue

Way too much empty space in that bracing to support weights being dropped. All of those empty squares need more 2x4's added.
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Old 10-29-2014, 09:38 AM   #5
Jason A Smith
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Re: Floor issue

Not sure how nay people you have in at a time, but building 8X8' lifting platforms would be a better solution, just to lift on. My garage floor is sloped and it is a bit noticeable, so I built a platform which stays flat all the time.

Not sure if that is feasible for you or not.
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Old 10-29-2014, 11:01 AM   #6
Mauricio Leal
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Re: Floor issue

You could also put some sort of non-messy filler in the gaps, like gravel, which is typically what is put down under concrete and above the base dirt layer to disperse the loading. Just gotta make it pretty compacted and level, then lay one or two of those fabric sheets on top, then 2 layers of plywood with 3/4" mats on top should do it. You can also get 1.25" plywood to beef it up.
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Old 10-29-2014, 02:48 PM   #7
Sean Smith
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Re: Floor issue

Quote:
Originally Posted by Mathieu Corriveau View Post
Thanks for the reply.

I don't own the garage, but the location was dreamy so I had to go with it.
The landlord didn't wanted the concrete in there.

How far away the braces would need to be ?
2 in appart ?
I'm not an engineer, but I've built plenty of things that should of had more bracing and break right away. You'll never have an issue with too much bracing. The person who mentioned gravel as a filler - that's a good idea too.
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Old 10-29-2014, 04:18 PM   #8
Marshall Flagg
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Re: Floor issue

Before you spend thousands on a fix that probably won't work. Move. The ONLY reasonable, long lasting solution for that floor is to remove it and pour a new one. Two layers of 3/4 inch plywood seems like it would work but over time it won't

You could build ultra bomber platforms which would probably work but having Crossfitters limit their barbell use to platforms can be a nighmare.

Anyway someone will drop a heavy KB, stone, barbell and it will punch through
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Old 10-29-2014, 04:50 PM   #9
Clint Harris
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Re: Floor issue

Can't tell you how many gyms I've visited and/or been a member of that do not have level floors. Never really an issue once you're aware.
They'll often have a dedicated lifting platform (8x8 or 6x8 type thing) or two in the corner that has been leveled for oly lifting or heavy squats, but for gen-pop 'wodding', it's just a case of getting it done and educating your fitnessers.
Sure, barbells may roll and the 10# bumpers fly sideways. But there are few very simple solutions.
1. When/after your 10# plates break in half, they make really useful stoppers that prevent a barbell rolling away.
2. Train your peeps to not drop the bouncy barbells (this is becoming the norm now to prevent breakage anyway). Same with kettlebells, there's no reason to drop from overhead unless you're in trouble, just continue the swing down, catch it soft and put on the ground.
3. Train your peeps to control their barbells and toys when dropping so they don't fly off into someone else's space. Take that extra 2s to ensure your barbell didn't roll away before you disappear for that 400m run.

I guess the end-story is here, don't try to get it so perfect that you're causing other problems and expense. Get rid of the floor and "raw-dog" it. Uneven floors are everywhere .... especially if, heaven forbid, someone has to do something outside. All I ask is to make sure they're clean!
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Old 10-30-2014, 02:04 PM   #10
Mathieu Corriveau
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Re: Floor issue

Thank you all for the suggestions.

There is 5in of depth, from the drain to the wall, so not having an even floor is just not an option.
I just couldn't ask for money for such a poor place to workout.

I will add some bracing and add some gravel in between.
Hopefully it should solve the problem.
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