The vast majority of home courts are not regulation size, and almost none of them need to be. What decides whether a court is good to play on is proportion — whether the key, the arc and the run-off are in a sensible relationship to each other — not whether it matches a number in a rulebook.
So the useful question is not "how big is a basketball court". It is "what will my space honestly carry", and then "in what order do I decide the rest".
Start with the space, not the court
Measure the usable area, then take off what you cannot play in. Most people measure the slab and forget that players do not stop at the line.
Allow 1 m of run-off on every side as a working minimum. That is not regulation clearance — it is the practical margin that stops a player putting a hand on a fence when they chase a ball down the baseline. Factor it in before you order anything, because it comes out of the same footprint as the court.
Also worth settling before you go further:
- Access for installation. A pallet of tiles needs a route in. Side returns, steps and locked rear gates are the usual surprises.
- What is overhead. Branches over a shooting area cause more disappointment than anything else on this list.
- Where the sun sits at the times the court will actually be used — which for most families is late afternoon and early evening.
- What the space becomes later. Courts get extended. Several of ours started as a key and grew.
The sizes worth building
These are the twelve footprints we build most often, and they are a ladder rather than a menu — each step buys a specific thing.
| Size | What it gives you |
|---|---|
| 6 × 9 m | A key: free-throw line, arc, one hoop. Shooting practice that feels like basketball. |
| 7 × 9.5 m | The same, with room to take a step back and to the side. |
| 8 × 9.5 m | Comfortable one-on-one. The usual entry point for a garden court. |
| 10 × 10 m | Square-ish; suits a driveway or courtyard where length is the constraint. |
| 12.5 × 10 m | Room for movement off the ball. Two-on-two starts to work. |
| 13.5 × 12 m | A generous half court. The most popular residential size we supply. |
| 18 × 13.5 m | Half-court proportions with real run-off on all sides. |
| 18.5 × 14.5 m | As above, with space behind both baselines. |
| 10 × 18.5 m | A long, narrow run — the side-yard or boundary-strip layout. |
| 11 × 21.5 m | Narrow full-length. Good for lay-up drills and end-to-end play. |
| 16 × 23.5 m | A full court at reduced width. Plays properly for most purposes. |
| 19 × 32.5 m | Full regulation. Rarely a garden; usually a club or an estate. |
Three of these do a specific job worth naming.
Around 7 × 6 m is the smallest court that is still a court. Below that you have a hoop and a hard standing, which is a perfectly good thing to own — just not the same thing. At this size you get the key, the free-throw line and an arc, and shooting practice stops feeling like throwing a ball at a wall.
Around 13.5 × 12 m is the sweet spot for most gardens. Big enough for rhythm, footwork and genuine play rather than static shooting; small enough that it does not take over the garden or dominate the house it sits behind.
A long narrow strip is not a failure. A run of 5.5 m by 12 m or more, down the side of a house or along a boundary, gives a real run-up for lay-ups — something square courts of the same area do not.
Orientation, and the light
Orientation is the cheapest decision on this list and the one most often skipped.
The problem to solve is glare at the hoop. A player shooting into a low sun cannot see the rim, and low sun is exactly what you get at the hours a home court gets used. Where the space allows a choice, put the hoop so that players shoot away from the setting sun rather than into it.
If the court will be used after dark, plan the lighting now rather than adding it later. Retrofitting a light to an in-ground post is straightforward; retrofitting a power supply across a finished garden is not. Lighting is also a planning consideration in several countries — see the permission guide for your market.
Surface
The full comparison is in how to choose a court surface. The short version for planning purposes:
Concrete and asphalt are what a court is built on, not the surface you play on. Whatever goes on top — modular tiles, an acrylic coating, or paint — is a separate decision from the base, and it can be made later. The base cannot.
We supply two tile profiles. Dynamic Pro II is the residential and club tile; Super X is specified where traffic is heavier, typically commercial and school installations. Both interlock without adhesive, lay directly onto a prepared concrete or asphalt base, drain through the surface, and hold up from −30 °C to +60 °C.
The hoop follows the court
Hoops get chosen first and they should be chosen late. Backboard size, mounting and stability all affect rebound angles and how confident the court feels — and a hoop that is oversized for its court reads wrong from the first shot.
For a permanent outdoor court, in-ground is the answer. Portable systems buy flexibility and pay for it in stability, which is the one property a hoop cannot be short of.
The MegaSlam range we supply adjusts from 2.44 m to 3.05 m, which covers a six-year-old and an adult on the same court, and carries a break-away 180° Pro Rim with backboards up to 72 inches. Match the backboard to the court rather than the budget: a 72-inch board on a 7 m court is as wrong as a 44-inch board on a full one.
Leave clearance behind the baseline and above the rim, and settle it before the layout is fixed — not after.
Colour and markings
Courts that still look right in ten years are the restrained ones. A limited palette, simple markings, and proportions that suit the space beat a busy design every time.
One thing worth understanding, because it shapes what is possible: tile colour is moulded in, not painted on. A colour boundary — a key, a surround, a second sport's zone — is a change of tile, so it lands on the tile grid and steps rather than curves. It also means the colour cannot fade off, peel or wear through, which is why a two-tone court still reads as two-tone after a decade.
Line markings are the exception: those genuinely are applied, and they come from a separate palette.
The base decides everything above it
Flatness, drainage and a stable sub-base determine how the finished court performs, whichever surface goes on top. This is the part that is expensive to fix and invisible to admire, which is why it is the part most often trimmed.
How to build a basketball court covers what a sound base actually requires.
More than one sport on the same pad
A court that carries basketball plus one or two other sports gets used considerably more than a single-sport court, and the marginal cost is markings and a net system rather than another slab.
Pickleball, volleyball, futsal, tennis, hockey, shuffleboard and cornhole can all share a basketball footprint. The constraint is usually run-off rather than the playing area itself — the second sport's clearance may be the thing that sets your overall dimensions.
In the UK a shared-use surface like this is commonly called a MUGA. The term is not used in most other markets, so we say multi-sport court elsewhere.
The mistakes that keep recurring
Four, and they account for most of the courts that disappoint:
- Treating a covered space as indoor. A roof does not eliminate moisture or temperature movement. If it is not sealed and heated, plan it as outdoor.
- Choosing the surface before knowing the usage. Occasional family play and daily training are different specifications.
- Choosing the hoop before the layout. Clearance behind the baseline is a layout decision, and the hoop has to live inside it.
- Underestimating the base. It is the least visible and least reversible part of the whole build.
All four come from the same root: deciding one part in isolation. Space, layout, surface, hoop and base each constrain the next, and the order in this guide is the order that keeps the constraints pointing forwards.