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Old 11-29-2010, 11:11 PM
RDNanoGuy RDNanoGuy is offline
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A 72x18 on a proper weight distributing stand will put less than 150 lbs. pressure per square foot on the whole area... You put more pressure than that just standing on the floor. Just put the tank against a load bearing wall and you'll be fine.
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Old 12-16-2010, 05:56 AM
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For sure I would buy the tank from ZoaElite. However, if you do want a custom tank I wouldnt go with any of the builders suggested in this thread. Having gone through the process of building a large custom tank, I know a fair bit about this aspect of the hobby. If you want my opinion, take a look at my build thread or PM me.

- Brad
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Old 12-16-2010, 02:02 PM
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sphelps sphelps is offline
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Using reason like a tank puts less lbs/sqft than a person or other house hold items isn't good. By the same reasoning you could say a floor can easily support 200lb/sqft since my buddy is 200lbs and can stand on a single tile meaning you could install a swimming pool without problems. However it obviously doesn't work that way and residential buildings are typically rated at a minimum of 40lb/sqft.

Without knowing the exact details of the floor support you can calculate how much weight you can put in a room using the standard residential minimum of 40 lbs/sqft.

For example if your room is 20'x10' that's 200 sqft meaning that room has to be able to support 8000 lbs total. Next apply some reason as the tank won't be distributed over the entire floor. Say for example the tank runs perpendicular to the floor joists and you manage to get the tank to sit on 6 of the 10 joists in the room, therefore using about 60% of the support. So you don't want to exceed 60% of 8000lbs or 4800lbs. That of course is max so you'll want to subtract for other furniture and live weight such as yourself and other people.

If you do know details you can play around with this

Last edited by sphelps; 12-16-2010 at 02:08 PM.
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Old 12-16-2010, 02:38 PM
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Difference between a room full of people at a party (who aren't there 24-7 for years) and a tank as well. Gradual sagging of the joists etc under constant load which can then mess with other things.
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Old 12-21-2010, 06:23 AM
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Quote:
Originally Posted by RDNanoGuy View Post
A 72x18 on a proper weight distributing stand will put less than 150 lbs. pressure per square foot on the whole area... You put more pressure than that just standing on the floor. Just put the tank against a load bearing wall and you'll be fine.

How many stands have 12"x12" legs? Mine has 1"x1" feet on the stand. So if you factor that.... we as people spread out over a more equal and larger space... so comparing a persons weight to a tanks weight does not seem like apples to apples.... now if someone out there has small feet......


Be careful. I agree with other statements... if you can't confirm 100%, its not a good idea. No matter what advice and knowledge people may have, they don't know YOUR house.

Older houses have problems just like new houses. The age does not mean it is more stable. You may have had termites in the house years before (bad example I am sure) but you need to be 100%. A 90 gallon tank water filled is about 720 pounds... not counting glass weight/rock/sump... etc.

Use caution.... make the best choice for you. If you really want to go large... I would recommend talking to your land lord or someone qualified to tell you whether or not you need additional supports.
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Old 12-21-2010, 07:03 AM
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Quote:
Originally Posted by paddyob View Post
A 90 gallon tank water filled is about 720 pounds
With salt its over 780 pounds of water.
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