Ø 3 m round pool
pool plan
This is a plunge-class pool: sized for cooling off, soaking and small-garden luxury rather than swimming laps. A uniform depth keeps the whole basin usable, heating it is quick and cheap, and it pairs beautifully with a deck-level overflow edge for a reflecting-pool look.
A round pool is the most social shape there is: everyone faces everyone, there's no deep-end hierarchy, and it drops into a small garden or courtyard without dominating it. It's the natural choice for cooling off, kids' play and spa-like plunge pools rather than lap swimming.
Open in the 3D designerFree · no signup · runs in your browser
Ø 3 m — shown to scale
The numbers, computed
- Water surface
- 76 sq ft
- Water volume
- 2,178 gal (9.1 tons)
- Perimeter
- 30′ 11″
- Depth
- 4′ 3″–4′ 3″
- Excavation approx.
- 19 cu yd
- Fill time (garden tap)
- 5 hours
- Skimmers needed
- 1×
- Heat pump size
- 10,000 BTU/h
Figures are computed from the sampled pool outline and the plan's depths — the same geometry the 3D designer uses. Excavation includes shell and working allowance; your site conditions may differ.
What it costs to build
A rough installed-cost range per construction type, at this size — the pool itself, with basic coping. Not a quote.
| Construction | Installed cost | Note |
|---|---|---|
| Liner or membrane | €16,000–€27,000 | Over a block or concrete shell; the least expensive route to any shape. |
| Tiled concrete | €24,000–€38,000 | A poured shell finished in tile; built to any shape, the most durable finish. |
| One-piece fiberglass | €14,000–€22,000 | Fastest to install; limited to sizes and shapes a mould exists for. |
Rough 2026 estimates for the pool installed with basic coping — excavation, shell and basic equipment. Excludes deck, fencing, landscaping, heating and permits, all of which vary by site and by builder; get real bids before budgeting from these figures.
Questions about this plan
- How much water does the Ø 3 m pool hold?
- About 2,178 gal (9.1 tons of water) at 4′ 3″–4′ 3″ depth — computed from the actual pool outline, not a rule of thumb.
- How long does it take to fill?
- Roughly 5 hours from a standard garden tap (~6.6 GPM). A water delivery service fills it in a few hours.
- Is this size right for my garden?
- The water surface is 76 sq ft; plan roughly 1.5–2× that footprint including the surrounding deck. Open the plan in the designer and set your own deck margins to see the full footprint.
- Can I change the depth or edge type?
- Yes — open the plan in the designer and adjust depths, edge system (skimmer, deck-level overflow or raised), finishes and accessories freely.
- How much does the Ø 3 m round pool cost to build?
- Roughly €14,000 to €38,000 installed at this size, depending on construction type — before deck, fence, landscaping, heating or permits. See the cost table above for the range per type.
Similar pool plans
Ø 3.5 m · Round
Plunge pool2,964 gal · 103 sq ft
4 × 2.5 m · Rectangular
Plunge pool3,091 gal · 108 sq ft
4 × 2.5 m · Rounded rectangle
Plunge pool3,015 gal · 105 sq ft
Ø 4 m · Round
Compact pool4,120 gal · 135 sq ft
5 × 2.5 m · Rectangular
Plunge pool3,864 gal · 135 sq ft
Ø 4.5 m · Round
Compact pool5,295 gal · 171 sq ft
Go on — put a pool in your garden.
Open the designer and see it in 3D tonight. Free, no signup.
Start designing — it's freeFree · no signup · runs in your browser