How Much Does a Pool Weigh? - Water Weight Calculator
Calculate the total weight of your above ground pool and water. Essential for deck safety and construction. Supports round and rectangular pool shapes.
Is My Deck Strong Enough?
Standard household decks are built to hold **40 to 60 lbs per square foot (PSF)**. A pool with just 3 feet of water exerts about **187 PSF**. This is why you should **never** put an above-ground pool on a standard deck without structural reinforcement.
Pro Tip: Before filling, make sure you know how long it will take to reach your target depth. Use our Pool Fill Time Calculator to plan your schedule.
Frequently Asked Questions
Can I put a small inflatable pool on my balcony?
It is very risky. Even a small 'kiddie' pool with only 12 inches of water exerts about 62 lbs per square foot, which exceeds the structural capacity of many apartment balconies.
Does salt water weigh more than fresh water?
Yes, but only slightly (about 2-3%). For residential pool calculations, the standard 8.34 lbs per gallon is accurate enough for safety assessments.
Get the Complete DIY Pool Maintenance Guide
Free PDF checklist including seasonal schedules, chemical balancing secrets, and maintenance tips.