Planning a lap pool
A lap pool is exercise equipment made of water. Design it like sports gear: long, calm and predictable.
5 min read
Length first, then everything else
Real stroke rhythm starts around 10 m, feels good at 12–15 m, and stops being interrupted by turns at 20 m+. Width can stay lean — 2.5 m suits one swimmer, 3–4 m two lanes. Our library's 12 × 4, 15 × 4 and 18 × 4 rectangles are classic lap formats; open one and stretch it to your site.
Uniform depth, calm water
1.35–1.4 m everywhere: deep enough for strokes and turns, shallow enough to stand. Deck-level overflow edges absorb waves at the perimeter — a real training benefit, not just an aesthetic one. Skip features that reach into the lane; keep steps in a corner or use a ladder.
The counter-current alternative
If length simply isn't available, a strong counter-current unit in a 5–7 m pool gives endless swimming in place. It's a different feel — some love it, some don't — so test one before building a pool around it.
Frequently asked questions
- How long must a lap pool be?
- 10 m is the practical minimum for stroke rhythm; 12–15 m is the private-garden sweet spot; 25 m is competition length.
- How narrow can it be?
- 2.5 m swims fine for one person. Below 2.2 m, wall turbulence starts to bother your stroke.
- Lap pool and family pool in one?
- An L-shape does exactly that: a 12 m lane plus a shallow family leg. See our L-shape plans.