8 x 4 m rectangular pool
pool plan
A full family pool: a shallow end where kids stand and games happen, a proper deep end for diving-free swimming, and enough length that two people can swim without negotiating. This is the most-built size class in private gardens for a reason.
The rectangle is the default for a reason: it gives you the most swimmable water for a given footprint, plays well with modern architecture and lap swimming, and makes covers, solar blankets and automatic cleaners simple. Straight walls also keep formwork and tiling straightforward, which builders appreciate.
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8 × 4 m — shown to scale
The numbers, computed
- Water surface
- 344 sq ft
- Water volume
- 11,571 gal (48.3 tons)
- Perimeter
- 78′ 9″
- Depth
- 3′ 11″–5′ 11″
- Excavation approx.
- 96 cu yd
- Fill time (garden tap)
- 29 hours
- Skimmers needed
- 2×
- Heat pump size
- 55,000 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 | €30,000–€50,000 | Over a block or concrete shell; the least expensive route to any shape. |
| Tiled concrete | €45,000–€74,000 | A poured shell finished in tile; built to any shape, the most durable finish. |
| One-piece fiberglass | €26,000–€45,000 | 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 8 × 4 m pool hold?
- About 11,571 gal (48.3 tons of water) at 3′ 11″–5′ 11″ depth — computed from the actual pool outline, not a rule of thumb.
- How long does it take to fill?
- Roughly 29 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 344 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 8 × 4 m rectangular pool cost to build?
- Roughly €26,000 to €74,000 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
9 × 4 m · Rectangular
Family pool13,008 gal · 388 sq ft
8 × 4 m · Rounded rectangle
Family pool11,175 gal · 338 sq ft
8 × 4 m · Oval
Family pool9,050 gal · 270 sq ft
8 × 4 m · Roman
Family pool10,252 gal · 307 sq ft
8 × 4 m · Grecian
Family pool10,826 gal · 325 sq ft
7.5 × 4.2 m · Kidney
Family pool6,554 gal · 193 sq ft
Go on — put a pool in your garden.
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