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Reef calculator
Tank Weight & Floor Load Calculator
How heavy the finished tank will be, and how hard it presses on your floor.
How this works
Glass weight is the area of the five panes × thickness × 0.0903 lb/in³. Saltwater weighs about 8.55 lb per gallon. Floor load is the total divided by the stand footprint.
Tank Weight & Floor Load
Questions
Can my floor hold a 120 gallon tank?
Often yes on a ground floor or concrete. Upstairs or across a long joist span, have someone check it. Running the tank across the joists spreads the load.
Does the stand footprint matter?
Yes. A stand wider than the tank spreads the load, so pounds per square foot go down.
Rather have us dial it in?
Frags2Fishes service techs test, dose and maintain reef tanks across PA, MD, DE, NJ and VA, and beyond.
