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Old 09-04-2009, 11:28 PM
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Depending on the tank size.

A 10G tank weighs 100 to a 130 Lb.

A 180G tank weighs 1800 to 2200 Lb.

You are wanting to distribute the weight over as big an area as possible and as many floor joists as possible.

Those legs are about 1 1/2 sq inches. That would spread the weight over approx 6 square inches.

For the 10G tank that would be approx 22 Lb. per square inch.

For the 180G tank that would be approx 367 Lb per square inch.

For larger tanks 2 x 4 or 2 x 6 construction shimmed for level is by far the best.

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Old 09-04-2009, 11:42 PM
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Had those on my old 75g on the main floor and no problems, currently using them on my 75g sump but it's sitting on a slab
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Old 09-05-2009, 01:44 AM
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Better then shimming too in most cases. Aint a flat bottom if you got all weight on 2 points only a couple mm thick at most times the depth of your stand. I'm using 12 legs on my 90.
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Old 09-05-2009, 05:38 AM
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Quote:
Originally Posted by Binare View Post
Better then shimming too in most cases. Aint a flat bottom if you got all weight on 2 points only a couple mm thick at most times the depth of your stand. I'm using 12 legs on my 90.

12 legs on a 90? You know, tanks only really need to be supported by the edge.
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Old 09-05-2009, 05:53 AM
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Quote:
Originally Posted by banditpowdercoat View Post
12 legs on a 90? You know, tanks only really need to be supported by the edge.
You know, GLASS tanks only really need to be supported by the edge. Furthermore, this topics about stands NOT tanks. In my case, all the legs I'm gonna use are adjustable, my house is a hundred years old, so is the creaky hardwood its going on, so yes... 12 legs, they are cheep, what my tank, sump n stand are gonna sit on, are not, come to think of it... Tank, stand n sump won't be either
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Old 09-05-2009, 02:26 PM
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if your floor is that far out you need to worry about it - build your sump with a separate floor skirt. Basic idea - main stand sits down into the flat bottomed floor skirt (use 6-10 of these under the main tank) floor skirt's purpose is to distribute weight evenly and mask the gap+bolts.

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Old 09-05-2009, 03:06 PM
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Ya, that and 4 legs are MUCH easier to level than 12. What I am saying is that the tank does NOT need support in the middle. So, WHY have the legs there? Especially on a 90. Whats the leg spacing? 6" Plus, with all those legs, how's access to under tank going to be?


Was just trying to save you extra work and headaches.
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