How to properly support a large fishtank

Old 12-01-08, 10:27 AM
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How to properly support a large fishtank

Hello Everyone!

I have a large 150gal saltwater tank that I want to put in my living room. Unfortunatley it will be running parallel to the floor joists.

- What do I need todo properly support this wieght. I want to TRY not to put a post underneth as my basement is semi finished and used.

- If I add some lateral 2x10 support with hangers will that be sufficent?

Attached are two pics at the bottom.

Here are the specs:
Tank Total Weight: max 2000lbs ( with rocks/equipment this is a generous figure )

Size 6'x2'

Joists 2x10x14

Hard Wood Floor

And the tank is sitting on a nice Spruce 1/2" peice of plywood that is 6'x2' to help distrubute the load.

I have also added two more 2x10 joists directly under the tank sistered to two existing ones by through bolting them.

The second picture shows the joists where the tank is sitting. The center joist is about center of the tank.


Last edited by michaelbarron; 12-01-08 at 10:55 AM.
Old 12-01-08, 04:45 PM
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I think if you added the 2x10 cross pieces between the joists every 3 ft or so, it will hoid the weight. If you want to be sure, get 10 people who weigh 200 lbs. each to jump up and down in that spot, maybe a local football team.

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