Can tank overhang stand on backside by 3"? - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 07-27-2013, 11:03 PM Thread Starter
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Can tank overhang stand on backside by 3"?

I scored a stand that is 36 1/2 x 15. I was looking at a 40 breeder but it is 18 deep. Will overhanging 3 " cause a problem? Can I attach plywood on the base to fit the tank footprint?

Thanks
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post #2 of 12 (permalink) Old 07-27-2013, 11:04 PM
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I think it would be better if you have a thick piece of plywood under. Also, I would recommend making it so it over hangs 1.5" in the front and 15" in the back
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post #3 of 12 (permalink) Old 07-27-2013, 11:26 PM
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IMO I would not trust it. Glass tanks that have bottom trims need to have support on all 4 edges. The edges is what carries the weight. An acrylic tank, the entire bottom needs to be supported. Putting plywood alone wouldn't be ideal imo. The plywood itself would need support from underneath it. For assurance and insurance, I would just build a stand or purchase a stand that is equivalent to accommodate the footprint .

*I just re-read the post and I mistook the purchase of the tank already and not the stand. Same rules apply though. Get a tank that either fits the stand or a tank that is smaller but still has the weight supported on all sides by the stand.

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Last edited by flight50; 07-28-2013 at 05:06 AM. Reason: re-read op
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post #4 of 12 (permalink) Old 07-28-2013, 12:15 AM
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+1 on the tank needing to be supported on all four corners. Think of it like a building/skyscraper/whatever: would you trust a building that had that back edge hanging off a cliff with no support?
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post #5 of 12 (permalink) Old 07-28-2013, 01:25 AM Thread Starter
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Thanks for the responses. I think ill look for a tank tha fits the stand. I think there are several with 36x12 demensions.
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post #6 of 12 (permalink) Old 07-28-2013, 01:44 AM
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post #7 of 12 (permalink) Old 07-29-2013, 02:47 PM
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Quote:
Originally Posted by ngrubich View Post
+1 on the tank needing to be supported on all four corners. Think of it like a building/skyscraper/whatever: would you trust a building that had that back edge hanging off a cliff with no support?
Thats what cantilever buildings are
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post #8 of 12 (permalink) Old 07-29-2013, 04:49 PM
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No, standard rimmed tanks need to be supported along the entire lengths of the rim. You might be able to get away with it for small (<10g) tanks, but not a 40g. This is especially true lengthwise, as a 36" length of glass will flex far more than a 18", leading to separation of glass and silicone along the bottom edge.
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post #9 of 12 (permalink) Old 07-29-2013, 08:12 PM
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Please dont over hang the tank. The 4 corners need to be supported. It's all about the 4 corners.

I'm not into the image, but into the hobby...
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post #10 of 12 (permalink) Old 07-29-2013, 09:00 PM
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I think it could be done as you describe, by placing a plywood base that fits the tank footprint. The details of that statement are critical, however. For instance I would make the auxiliary base out of two sheets of 3/4" plywood, glued and screwed together. That would make your base 1-1/2" thick, with an overhang of the same amount. I would also fasten the new base to the stand with screws and adhesive. I would probably trim the raw edges with solid wood, that also would add strength. I think that the small cantilever would be well tolerated and the rim of the tank would be fully, and properly supported.
That is what I would do, if I was motivated to go to the trouble. Your results may be different than I suggest, but I would have no problem for myself. I have plenty of woodworking tools and experience, so that's what I'd do for myself.
If you have any misgivings, just buy a proper, commercial stand.
Good luck,
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post #11 of 12 (permalink) Old 07-30-2013, 12:03 AM
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Quote:
Originally Posted by Psycofc1 View Post
Thats what cantilever buildings are
I'm not talking about cantilevers.
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post #12 of 12 (permalink) Old 07-30-2013, 09:54 PM
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what about width wise?
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