Specifications
FINA specifications for an Olympic-size pool are as follows:
| Length | 50 m (164 ft) |
| Width | 25 m (82 ft) |
| Number of lanes | 10 |
| Lane width | 2.5 m (8 ft 2 in) |
| Water temperature | 25–28 °C (77–82 °F) |
| Light intensity | minimum 1500 lux (140 footcandles) |
| Depth | minimum 2.0 m (6 ft 7 in) |
| Volume | minimum 2,500 m3 (88,000 cu ft) or 2,500,000 L (550,000 imp gal; 660,000 US gal) or 138,888,888.889 mol, depending on depth |
There must be two spaces 2.5 m (8 ft 2 in) wide outside lanes 1 and 8 (in effect, two empty lanes). The length of 50 metres (164 ft) must be between the touch pads at the end of each lane, if they are used.
At FINA's 2009 Congress, rules were approved for 10-lane courses for competition, as an alternative to the more traditional 8-lane course.
Read more about this topic: Olympic-size Swimming Pool