14 ms·

Structural support in the floor? There are people that weigh more than this. It’s only 20 gallons

cogman10 2mo ago
I looked it up, you are looking at 160lbs (75kg).
inigyou 2mo ago
But big tanks do need extra support. This is a relevant thing to post in case someone is thinking about scaling it up. The Pfizer building in NYC almost collapsed after they tried to build a swimming pool on the roof. This happens semi-regularly when building owners ignore, or don't consult, engineers about rooftop swimming pools. Every owner wants one and doesn't want to be told no.
- sokka_h2otribe 2mo ago
  Ok, they also added an entire building on top, not just a pool
- knollimar 2mo ago
  Pretty sure the pfizer building was vertical expansion without reinforcement. I dont think they got to the pools. I worked for a company that did a bid for the electrical work. Edit: there was a pool. Didnt have on plans at time Second edit: looking at wrong plan. There was a pool but it was basically a blank plan with annunderdesigned roof.
- throwaway2037 2mo ago
  "almost collapsed"? Probably an overstatement. If anyone wants to read more about this: https://en.wikipedia.org/wiki/Pfizer_Building#Structural_deterioration_and_evacuation https://en.wikipedia.org/wiki/Pfizer_Building#Structural_det... > This happens semi-regularly when building owners ignore, or don't consult, engineers about rooftop swimming pools. Another wild overstatement. Yeah, I'm sure the city approved this office to residential converstion with a rooftop swimming pool that has no engineering analysis. "This happens semi-regularly": Can you provide other examples? I couldn't find any with a cusory Google search.
malfist 2mo ago
As someone who has over 800 gallons in aquariums between three tanks in his house, I'll say structural support is not as important as people make it out to be (ask an actual structural enginer). Anything up to 120 or so is just fine hanging out on a floor without extra support. Also steel is completely unnecessary unless you're doing something wild like that guy in NYC with a 17,000 gallon home aquarium. If you're just throwing a 200 gallon or so on a second floor, an enginer might not care at all if its across the joists or has a wall below it, but even if its completely open below, the "support" might just be a joist of a different design, or an inch thicker or one extra joist. Steel is really not nessecary

I looked it up, you are looking at 160lbs (75kg).

But big tanks do need extra support. This is a relevant thing to post in case someone is thinking about scaling it up. The Pfizer building in NYC almost collapsed after they tried to build a swimming pool on the roof. This happens semi-regularly when building owners ignore, or don't consult, engineers about rooftop swimming pools. Every owner wants one and doesn't want to be told no.

sokka_h2otribe 2mo ago
Ok, they also added an entire building on top, not just a pool
knollimar 2mo ago
Pretty sure the pfizer building was vertical expansion without reinforcement. I dont think they got to the pools. I worked for a company that did a bid for the electrical work. Edit: there was a pool. Didnt have on plans at time Second edit: looking at wrong plan. There was a pool but it was basically a blank plan with annunderdesigned roof.
throwaway2037 2mo ago
"almost collapsed"? Probably an overstatement. If anyone wants to read more about this: https://en.wikipedia.org/wiki/Pfizer_Building#Structural_deterioration_and_evacuation https://en.wikipedia.org/wiki/Pfizer_Building#Structural_det... > This happens semi-regularly when building owners ignore, or don't consult, engineers about rooftop swimming pools. Another wild overstatement. Yeah, I'm sure the city approved this office to residential converstion with a rooftop swimming pool that has no engineering analysis. "This happens semi-regularly": Can you provide other examples? I couldn't find any with a cusory Google search.

malfist 2mo ago

As someone who has over 800 gallons in aquariums between three tanks in his house, I'll say structural support is not as important as people make it out to be (ask an actual structural enginer). Anything up to 120 or so is just fine hanging out on a floor without extra support. Also steel is completely unnecessary unless you're doing something wild like that guy in NYC with a 17,000 gallon home aquarium. If you're just throwing a 200 gallon or so on a second floor, an enginer might not care at all if its across the joists or has a wall below it, but even if its completely open below, the "support" might just be a joist of a different design, or an inch thicker or one extra joist. Steel is really not nessecary