Determining floor/joist weight capacity

[newreefer_59]

The drawing I made is to scale, and no, I cannot move the tank any further so that the double joist is in the middle

What the drawing does not show is the 2 joists drawn that sit on the outside concrete wall actually extend about 2 feet farther out as the house juts out there - originally intended for a dining room.

The beams are wood and unsure of the designation, but could check.

[mark]

and a additional comment, during house construction often see about 4 foot stack of drywall or sheeting sitting in the middle of the house. It's got to weight a few pounds and can't say I've seen any lifts ending up in the basement from the floor collapsing.

[Lance]

Floors collapsing under large loads are not very common. It is the sagging of the joists under the prolonged weight that is usually the problem.

[scorpio73]

does the stand have a flat base or just edge base hollow in center
because the weight is min if its a flat base not hollow . i have a 180 with a 90 gal fuge and no problems over 5 joists and its about 200 pounds per sqaure foot so i figure i am over 200lbs and the floor hold s me

[dabandit]

Let me try to clarify this for everyone,the joists can bear the weight but it depends on how they are anchored,a saddle bracket alone cannot bear the prolonged constant weight. If you people want to risk it its your perogative,but reinforcing costs maybe 200$ what did your tank setup cost? or how much damage you think 100+gallons of water would cause?

[mark]

Originally Posted by dabandit

Let me try to clarify this for everyone,the joists can bear the weight but it depends on how they are anchored,a saddle bracket alone cannot bear the prolonged constant weight. If you people want to risk it its your perogative,but reinforcing costs maybe 200$ what did your tank setup cost? or how much damage you think 100+gallons of water would cause?

Guess I'm lucky, my floor joists sit on top on my perimeter walls and beams, no hangers.