The following standard dimensions are available on the market: 6x3 metre pools (also 6x2 and 6x4 metre pools), corresponding to an area of 18m2; 7x3 metre pools (also 7x4 and 7x5 metre pools), corresponding to an area of 21m2; 8x4 metre pools (also 8x3 and 8x5 metre pools), corresponding to an area of 32m2; 9x6 metre pools (also 9x5 and 9x7 metre pools), corresponding to an area of 45m2.
Other sizes are also available but less common. For example, 10x8 metre pools and 12x12 metre pools.
The depth of a pool determines how much water it holds. The deeper the pool, the more space there is for water, which means it can hold more volume. Pools with depths between 1.2 metres and 3.6 metres are usually fine for recreational use. Pools with depths of up to 5.5 metres are suitable for diving or other activities requiring deep water.
The length of the pool is another factor in deciding its capacity. Longer lanes mean that there's more room for loungers and sunbathers to lie flat. Pools longer than 200 metres are rare because it's difficult to find spaces large enough in one location.
One final thing to consider is the type of pool you get. In addition to the sizes mentioned above, there are also floatation pools, which are like small lakes within the main body of the pool.
POOLS THAT ARE RECTANGULAR
| Feet | Metres | Approx. Litres |
|---|---|---|
| 30 x 15 x 4 | 9.0 x 4.4 x 1.2 | 48,000 |
| 30 x 15 x 5 | 9.0 x 4.5 x 1.5 | 60,000 |
| 34 x 17 x 5 | 10.0 x 5.0 x 1.5 | 75,000 |
| 40 x 20 x 5 | 12.0 x 6.0 x 1.5 | 110,000 |
The bulk of indoor pools are 30ft by 15ft (9.2m × 4.5m), with the remaining 10% being somewhat shorter at 28ft x 14ft (8.6m x 4.3m). The longer pools tend to be more popular because they allow for more lanes and thus more space for swimming and diving.
The depth of an indoor swimming pool depends on how high you want the water to go. If you want a shallow pool that does not exceed 2 feet (60 cm) deep, then you can get away with any size up to about 20 feet by 8 feet (6 m by 2.4 m). Pools that are 24 feet by 6 feet (7.3 m by 1.8 m) or larger usually have depths exceeding 2 feet (60 cm).
The weight of the water is also important. If you plan to fill the pool all at once during construction, make sure that you select a quality vinyl liner that can handle the weight of the water. Some cheaper liners may collapse under their own weight before you even have a chance to use them. Also, remember that the water in your pool will evaporate over time so you'll need to add more liquid each month to keep the levels consistent.
Indoor swimming pools are very economical to build if you know what materials to look for.
Pool Dimensions and Gallons Capacity
| Pool Size | US Gallons |
|---|---|
| 30 ft. Rnd | 21,240 |
| 12 ft x24 ft Oval | 6,400 |
| 15 ft x24 ft Oval | 8,000 |
| 15 ft x 30 ft Oval | 10,000 |
Small pools are typically 12' X 24', whereas medium-sized pools are 16' X 32', and large above-ground pools are 20' X 40'. Most people like medium-sized pools because they can accommodate a family of five. A small pool is also suitable if you do not have children or only have one child.
The depth of an above-ground pool should be two feet deep by the side of the house and four feet deep in the middle of the pool. The deeper it is, the longer it will last without needing to be refilled.
The quality of the pool's construction may affect how soon it needs replacing. Pools with vinyl liners are easier to clean than those with wood fiber fillings and tend to last longer too. Also worth considering is the location of your pool. Is it exposed to the sun all day long? If so, you'll need more heat added to it during cold months. Is it near a house wall? If so, you might want to add some insulation. Finally, consider the type of water you're going to use for filling your pool. If you're using saltwater, you'll need to replace it more often than if you were using fresh water.
Now that you know what kind of pool to get, you need to decide where it should go in your yard.
Pool dimensions: 25 metres long by 10 metres wide. 1 metre to 2 metre depth (average 1.5 metres) "Recreonics Inc. Calculating Swimming Pool Water Volume" = 25 x 10 x 1.5 = 375 cubic metres.
That's about 30,000 litres or 7500 gallons!
The average person uses about 50-100 litres of water per day. So, your swimming pool won't be empty between swimmers.
Pools need to be filled up for two reasons: to prevent animals from getting into the pool and causing damage to themselves or others; and to provide a comfortable temperature for swimmers. If the pool is not filled to the top each time it is used, then water will be forced out through any openings such as leaks in the pool lining or filter, causing expensive repairs to be done before too much longer.
If you only have time to fill your pool halfway up every time you use it, that would be enough to keep animals out and still leave plenty of water for everyone else to enjoy. Of course, if you have a large pool then you'll need to fill it more than half way up to avoid flooding. Large pools also use less water per hour than small ones because there's so much more surface area to cover.
We do, however, provide equivalents: The oval Olivia pool spans 5.16x2.37 metres (equivalent to a 6x3 metre pool) and has an area of 11m2. The rectangular Sara pool measures 7.36x3.18 metres (equivalent to a 7x3 metre pool) and has a surface area of 22.5m2.
In addition to these measurements, the pools are also equivalent in depth. Olivia's depth is 1.20 metres and that of Sara is 0.80 metres.
A 6x3 metre pool will hold approximately 60-70 swimmers. An equivalent size 7x3 metre pool can hold around 70-80 people.
Both sizes of pool are suitable for swimming lessons but the smaller one is not recommended for competitive swimming due to its relative ease of handling compared with larger pools.
The depth of the water is important when choosing a size pool for your needs. If you want to swim at your local leisure centre then they would recommend either the smaller 6x3 metre or the larger 7x3 metre pool. These pools are easy to get into and out of and less likely to cause panic if someone starts drowning.
If you need to transport your pool outside of London for use in competitions or training sessions then it may be worth considering buying a pool that is slightly larger than what you need.
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