what is the standard width of a swimming lane?
Traditional lap pools are about 10 feet wide, though widths between 8 and 10 feet are common. (In competition pools, swim lanes are 2.5 meters wide, or about 8.2 feet.) You don't want to go too narrow with a lap pool. When people swim, their bodies generate wave action, and those waves reflect off the sides of the pool. The narrower the pool, the more turbulence.