What size are most gym pools?
The standard pool size that you will find in gyms and rec centers are 25 yards long. This can also be determined if there is black line with a tee at each end. This is used to help swimmers know when the wall is close. The Olympics defines a lap as one length of the pool. It’s worth noting, however, that Olympic pools are 50 meters in length, while most recreational lap pools are 25 yards or 25 meters.