house support

playa0069u

New member
hey everybody I was wondering, my g/f's house is raised, and will not support a tank, but my dad pointed out to me today, that I could just pile up cinder blocks under the area where I wanted the tank. Anybody know?
 
My house in Louisiana was 3 ft off the ground. I set up a 125 and filled it half full with water. Then I used screw jacks on 4x6 lumber under the floor joists and leveled it. After I filled it adjusted the level a little more and had to adjust it again after a few months. After that it was good for several years.
Mike
 
id say depending on the size shouldnt be a problen givin PSI what size is she looking for unless its not like 200 gallons but yea floor jacks would be fine if really concerned
 
I had a 75gallon in a raised house that was built in 1940. Before placing the tank I went underneath the house to see where the supports and crossbeams were. I was able to place the tank in the dining room against a wall. At the time I was using a Rod Iron stand, hindsight, I should've used a stand that would've distro'd the weight better.

Didn't affect the floor. Checked with a level after we packed up to move.
 
well her dining room table was making her dining room floor bow in after only a few days.... it is a thirty long. or now she is thinking possibly a 20 instead.
 
hmm lets think heree 30 long 30x8 (water weight) 240 lbs % 4 (legs on a stand) = 60 so youll have 60 lbs per leg which is probally 1 inch x 1 inch minimum so 30 psi. this tank will probally weigh about the same as the fridge so i wouldnt worry about it just place close to a wall by joices.
that must be one heck of a table shes got there
 
a thirty gallon tank will weigh between 300 and 400 lbs when filled. since it will be distributed across several floor joists, i'd be surprised if it would cause a problem since there are some people that weigh that much and would cause more of a point load than the tank will. in va, the minimum board for a floor joist is a 2x10 spaced every 18in, I believe. take a look at the structure around the dining room table - are the joists bowing, or is it the sheeting? if the joists are bowing, you should investigate as to why - termite damage, improper construction, etc.
~Brian
 
the top sheets or subfloor - plywood that is layed over the joists, then your tile/hardwood/carpet is layed over this. sometimes it's improperly fastened to the joists.
 
I had a problem with a 125 SW predator tank in a 150 year old house in NH. After 3-6 months, the wrought iron stand was pressing down and bending the floor boards.

We dug a small pit in the dirt crawl space under the aging floor, filled the pit with quick-dry cement, put in a small lifting crank, lifted up the joist, put a 2 x 2 perpendicular across the joist to distribute the pressure and put a 4 x 4 post between the concrete pad and the 2 x2 cross joists. Then we put some 2 x 2s under the feet of the tank stand to distribute the weight across the floorboards.

Overkill, perhaps, the 2 x2 s under the tank stand were probably enough, since a refrigerator puts more weight on a smaller area, but better to be safe.
 
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