Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > DIY Projects
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 07-26-2004, 04:03 PM   #1
Aquarium Advice Apprentice
 
Join Date: Jul 2004
Location: Boston Ma
Posts: 16
Calculating Weight of tank and Floor capacity

I am buying a 300 Gallon tank.

This tank has 700lbs of LS and 500lbs of LR

It's going on the 2nd floor of a newly build addition.

The addition is 23Ft wide built with 12inch Wood I-beams every 16in on center a part.

I asked the contractor many times if it would hold the weight and he said "trust me you won't have any problems" Of course i belive him like i'd belive a lawyer lol j/k

Anyway I want to check on my own..
To make sure When i set up my tank it doesn't take the whole addition down with it.

Also it would be spaning the lenght of a the beams, and would be over 2 of them.

Any help would be greatly appreciated
__________________

__________________
65 gal Tank:
2 - Yellow Tail Damsels
3 - Domino Damsels
3 - Chromis Damsels
2 - 3 Striped Damsels
5 - Mexican Turbos
3 - Peppermint shrimp
4 - Emerald Crabs
2 - Brittle stars
2 - Queen Conch Snails
35lbs Fiji and Brazilian LR
Half Shallow and Half Deep Coral Bed
sw65galma is offline   Reply With Quote
Old 08-10-2004, 06:36 PM   #2
Aquarium Advice Activist
 
Join Date: Oct 2003
Location: Arizona, Tempe
Posts: 196
I am no contractor, but I am very skeptical of a 300 gallon tank on a second floor. I was weary with my 110.

The general consensus is that over 100 gallons is risky.

I calculate that at about 3600 lbs. Just seems like a lot of weight to me, without adding additional support.
__________________

__________________
12g JBJ nano-cube dx
NightSpirit is offline   Reply With Quote
Old 08-10-2004, 06:53 PM   #3
Aquarium Advice FINatic
 
Join Date: Feb 2004
Location: Crete Illinois
Posts: 656
water weighs about 8 pounds a gallon..somewhere around there anyway.

2400 lbs water
700 lbs Live sand
500 lbs Live rock

3600 lbs....thats not including the stand, sump (if used), top or canopy,and all the equipment that will be utilized to runn the tank. I'm guessing closer to 4000 lbs. 2 tons......thats a lot of weight.
__________________
125 Gal-35 Gal Wet/Dry-Tetra-Tec PF500 HOB Filter
(3) AuquaClear 301 Powerheads-600 GPH Circulating Pump
Automatic Tempature Controller
5-6 Inch Sand Bed-200+ lbs of LR
Sparky is offline   Reply With Quote
Old 08-10-2004, 07:03 PM   #4
Aquarium Advice Addict
 
Join Date: Sep 2003
Location: Florida, USA
Posts: 2,829
Iwould definately not do it, If you were agoing across the beams it would be a different story, but your going to put nearly a ton of weight under each beam under the tank.

That is definately a scary situation, and I'd shy away from it personally.
__________________
30gal; Bala Shark, Pl*co
William is offline   Reply With Quote
Old 08-12-2004, 07:30 PM   #5
AA Team Emeritus
 
jsoong's Avatar


 
Join Date: Aug 2003
Location: Edmonton, Canada
Posts: 4,222
Also depends on where your tank is in relation to the load supporting walls. If the tank is directly over a load supporting wall, it would be OK. It gets riskier the further you are away from that - the middle of the room would be worst.

Before putting 2 tons overe 2 12" I-beams (BTW - how far is that spanning?), I would suggest you talk to a structural engineer. The room might not collapse, but any sagging will cause cracks, doors not fitting, etc.
__________________
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
jsoong is offline   Reply With Quote
Old 08-12-2004, 08:39 PM   #6
Aquarium Advice Addict
 
Join Date: Sep 2003
Location: Florida, USA
Posts: 2,829
Is it not possible to put it in a different orientation so it goes across the beams, instead of along them?


Because even tho, if the house was build perfectly and the lumber has no flaws, there is still a risk...and its not worth risking the money invested into your house and tank. IMHO atleast
__________________
30gal; Bala Shark, Pl*co
William is offline   Reply With Quote
Old 08-12-2004, 11:04 PM   #7
Aquarium Advice Addict
 
QTOFFER's Avatar
 
Join Date: Nov 2003
Location: Kew Gardens, NY
Posts: 4,295
This is one of my favorite online articles about tank weight issues.
http://www.cichlid-forum.com/article...ium_weight.php

From what I've read, over loading a structure rarely results in catastrophic collapse. However, it can lead to deflection and sagging, which can can cause an aquarium to burst a seal.
The thought of 300 gallons of sandy SW cascading down the stairs...*shudders*.

I would also advise you to consult a structural engineer.
How much could they charge? - probably chump change compared with the value of that sweet aquarium you're thinking of setting up!
__________________
QTOFFER is offline   Reply With Quote
Old 08-15-2004, 10:56 AM   #8
Aquarium Advice Addict
 
Join Date: Oct 2003
Location: PA
Posts: 1,869
Send a message via AIM to jamal-188
Quote:
Originally Posted by QTOFFER
I would also advise you to consult a structural engineer.
How much could they charge? - probably chump change compared with the value of that sweet aquarium you're thinking of setting up!
I"m in the same process of trying to determine if my 200g can go on my second floor. I was able to contact a few structural engineers that chargerd $80-100 an hour with the cheapest estimating 3 hours and the most expensive estimated a full 8 hour day. I"m having someone come out next week to check it out! I agree that it is much better to be safe than sorry, the couple hundred you'd spend would be well worth the piece of mind IMO.
__________________
jamal-188 is offline   Reply With Quote
Old 08-15-2004, 03:29 PM   #9
Aquarium Advice FINatic
 
Join Date: Jan 2004
Location: cincinnati
Posts: 805
Send a message via AIM to Mr Burns
jeez...and i'm even nervous putting my 85 on the second floor. i don't think i'd even consider anything over 100gal up here. good luck with all that...
__________________

__________________
"If this were a dictatorship, it'd be a heck of a lot easier...just as long as I'm the dictator..."
--George W. Bush, Washington, DC, Dec 18, 2000
Mr Burns is offline   Reply With Quote
Reply

Tags
cap, capacity, tan

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Maximum tank weight supported by 2nd floor pjcozzi General Hardware/Equipment Discussion 8 03-05-2008 09:16 AM
stand weight capacity catchndolphn Saltwater & Reef - Getting Started 6 08-11-2006 08:41 PM
150-180gal on second floor, too much weight? ChileRelleno Freshwater & Brackish - General Discussion 11 11-07-2005 07:10 PM
new weight/second floor questions Mr Burns DIY Projects 5 05-22-2004 11:19 PM
Opinions Needed on Tank Weight/Floor Support jmeunier Freshwater & Brackish - General Discussion 14 03-05-2004 11:02 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:38 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.