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I want to install a fish tank that is 6' by 2' wide and will…

Customer Question
I want to install...

I want to install a fish tank that is 6' long by 2' wide and will weight 230 lbs/ft2.

Tutor's Assistant: OK. Tell me a bit more about what's going on so we can help you best.

The floor is made of 2x10's, 14" on center, with every 3rd joist doubled up.

Tutor's Assistant: Is there anything else the Structural Engineer should be aware of?

The span of the joists is 10' and the tank will run perpendicular to the joists

Submitted: 5 months ago.Category: Structural Engineering
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Customer reply replied 5 months ago
Is this a scam? Hello?
Answered in 50 minutes by:
12/13/2017
Structural Engineer: walkereng, Consultant replied 5 months ago
walkereng
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 2,960
Experience: Over 30 years of Structural Engineering experience.
Verified

I can help

Let me read your question a bit closer.

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Structural Engineer: walkereng, Consultant replied 5 months ago

Where will the tank fall along the 10' span floor joists (at midspan, up near one end or the other, etc.)?

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Structural Engineer: walkereng, Consultant replied 5 months ago

Are you still there?

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Customer reply replied 5 months ago
Near one end. Within 3' of the end.
Customer reply replied 5 months ago
No thx
Customer reply replied 5 months ago
On the call offer that is.
Structural Engineer: walkereng, Consultant replied 5 months ago

So 3' from end to side of tank?

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Structural Engineer: walkereng, Consultant replied 5 months ago

you are going to need to double up each of the 2x10's under the tank, so you will have double 2x10's spaced at approx 16" o.c.

If you feel you have received a satisfactory answer to your question, please click the Rating button that is appropriate. Experts are credited for each adequately Rated answer they provide. If you have additional questions, please let me know. Thanks

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Customer reply replied 5 months ago
The basement below is finished. Well finished with bathrooms, a hallway, a bedroom and a laundry room beneath. Adding joists isn't an option. What per ft2 load calculation do you come up with? How many pounds per square foot should my 2x10s 14" oc, with every third already doubled up, should that floor be able to hold?
Structural Engineer: walkereng, Consultant replied 5 months ago

1. Is this a bedroom or a general occupancy room?

2. Do you know what species and grade of lumber your floor joists are?

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Structural Engineer: walkereng, Consultant replied 5 months ago

3. When you say 14" o.c., are you sure you do not have 16" o.c., that is the most common spacing?

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Customer reply replied 5 months ago
Custom home. Yes, completely certain. 110% certain. Just measured in the unfinished part of my basement to confirm. I am trying to add a picture of what's written on the boards...
Structural Engineer: walkereng, Consultant replied 5 months ago

That would be nice to see the stamps, thanks

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Structural Engineer: walkereng, Consultant replied 5 months ago

Yes, it looks like Southern Pine (#1 grade), that is nice.

Is this a bedroom or a general occupancy room?

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Customer reply replied 5 months ago
Also, the tank will be going in my den... General occupancy I guess.
Structural Engineer: walkereng, Consultant replied 5 months ago

I’d like to point out that a Professional Engineer’s standard of care typically includes a site visit to assess field conditions and get an overall understanding of the structure. This can obviously not be accomplished through the internet. The information provided here is meant for planning purposes only (general sizing and budgeting) and is based on the information provided by you. All loading cases considered are for vertical loads only, no lateral analysis has been completed. The information should be verified by a professional engineer who can visit the site to ensure that potentially important information has not been overlooked or omitted.

I have assumed the following from your information:

Southern Pine (#1 grade) floor joists spaced at 14" o.c. and spanning 10'

Live Load = 40 psf and Dead Load = 10 psf

2' strip load from fish tank of 230 psf with side of tank 3' from wall, so strip load is from 3' to 5' from wall, perpendicular to the floor joists.

With this configuration, you are at approx. 90% of the allowable bending capacity.

It would be great if you could make sure 2 of the doubled up floor joist are under the tank.

Let me know if you have any more questions.

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Structural Engineer: walkereng, Consultant replied 5 months ago

If you feel you have received a satisfactory answer to your question, please click the Rating button that is appropriate. Experts are credited for each adequately Rated answer they provide. If you have additional questions, please let me know. Thanks

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Structural Engineer: walkereng, Consultant replied 4 months ago

If you feel you have received a satisfactory answer to your question, please click the Rating button that is appropriate. Experts are credited for each adequately Rated answer they provide. If you have additional questions, please let me know. Thanks

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