Indoor Basketball Courts for Gyms

Line Marking Australia builds and lines indoor basketball courts for gyms and indoor sports centres across Australia, from sports flooring and FIBA court lines to hoops and lighting. Indoor courts are quoted per site because the building and floor system drive the cost; for reference, a full-size outdoor court starts from about $70,000.

Gyms and indoor centres are adding courts for training, social leagues, coaching and hire. A court turns spare warehouse space into one of the busiest parts of the business.

Indoor work has its own questions: the existing slab, ceiling height, flooring and how lines suit other sports. Here's how we approach it.

Why are gyms adding indoor basketball courts?

Gyms and indoor centres are adding basketball courts because a court earns from many sources: social competitions, junior coaching, team training, court hire and functional fitness classes. Indoor play is unaffected by rain or heat, so bookings hold up all year. A court can also be lined for netball, volleyball and badminton to widen its use.

• Social leagues and junior programs
• Hourly court hire for teams and groups
• Space for group fitness when the court is free
• Multi-sport lines for more types of booking

How much does an indoor basketball court cost?

An indoor basketball court for a gym is quoted per site, because the cost depends on the existing slab, the floor system, court size, hoops, lighting and any building works. For reference, a full-size basketball court of about 420 m² starts from about $70,000 (published Australian builder pricing, 2026), and indoor floor systems vary widely.

Cost item	What drives it
Slab preparation	Levelling, crack repair and moisture testing
Floor system	Sprung timber, sports vinyl or modular tiles
Line marking	Basketball plus any extra sports and colours
Hoops	Wall-mounted, ceiling-suspended or portable systems
Lighting and safety	Even, glare-free lighting, wall padding, run-off

What size is an indoor basketball court?

A full-size indoor basketball court is 28 m by 15 m under FIBA rules, plus run-off around the lines so players can stop safely before walls, seating or equipment. Many gyms don't have that length and choose a half court or a shorter training court instead. We measure the building and draw the best fit.

Columns, roller doors and fire exits inside the playing area are common in converted warehouses, so we check them early in the design.

Wall padding behind the baskets and clear run-off along the sidelines are worth planning from the start. They cost far less to include in the first fit-out than to retrofit after members start playing.

What is the best flooring for an indoor basketball court?

The best flooring for an indoor basketball court depends on use and budget. Sprung timber gives the classic feel and shock absorption for competition. Sports vinyl is cushioned, easy to clean and suits multi-use halls. Modular tiles install quickly over a sound slab. All need a level, dry slab underneath, so we test it first.

• Sprung timber: premium feel, best for competition and heavy play
• Sports vinyl: cushioned, low maintenance, good for mixed use
• Modular tiles: fast install, panels can be replaced

Can an indoor court be lined for other sports?

Yes. An indoor basketball court can also be lined for netball, volleyball, badminton and futsal, with each sport in a different colour. Our crews have lined indoor school sports halls for basketball, netball, volleyball and badminton, so we know how to keep a busy floor readable. Basketball lines usually take priority.

We usually agree a colour key with the gym before marking, for example white for basketball and lighter contrasting colours for the rest, so players read their own lines at a glance during fast play.

Volleyball is 18 m by 9 m and badminton doubles 13.4 m by 6.1 m, so both fit within a full basketball court, and several badminton courts can sit side by side.

What ceiling height does an indoor basketball court need?

An indoor basketball court needs enough clear height above the hoops for high shots and passes, without beams, lights or ducts in the way. Exact needs depend on the level of play your gym is aiming for. We check the building's clear height, roof structure and where lights and hoops can mount before recommending a layout.

Do gyms need approval to build an indoor court?

A gym building an indoor court may need council approval, especially if the use of the building changes, structural work is involved or new exits and access are required. Building owners usually need to consent to fit-outs. We check the council requirements and your lease before the final quote and work with your certifier where needed.

How long does it take to build an indoor basketball court?

An indoor basketball court fit-out usually takes a few weeks once the slab is ready and materials have arrived. Slab repairs and moisture issues are the main causes of delay, because flooring can't go down on a damp slab. Line marking and hoops come last. We give you a staged program so you can plan your opening.

How we keep every gym court build compliant

Every indoor basketball court we deliver for a gym is planned against council rules, safety laws and the sport's court dimensions. That means approvals and lease consent checked early, safe work methods inside the building, silica dust controlled when we grind the slab, and lines marked to the FIBA 28 m by 15 m court.

• Basketball court dimensions: 28 m × 15 m (FIBA), with run-off
• Local council planning or building approval checked, including change of use
• Safe Work Method Statements for high-risk work and mobile plant
• Silica dust controls (on-tool vacuum extraction) when grinding or cutting the slab
• Sports lighting to AS 2560.1:2018 and AS 2560.2:2021
• Accessible entry and paths considered against AS 1428.1
• Builders who hold the licence your state requires, with public liability insurance

Read more on our basketball court construction page, see our sports courts for gyms and padel centres page, or our indoor sports line marking page if you only need lines.

What do you need from us to quote an indoor basketball court?

To quote an indoor basketball court, Line Marking Australia needs the building's internal measurements, clear height, the condition of the existing slab and the floor system you prefer. Tell us which sports to mark, the hoops you want and your opening date. Floor plans and photos help us return an accurate, itemised quote.

• Internal length, width and clear height
• Existing floor and slab condition
• Full court, half court or training court
• Floor preference: sprung timber, sports vinyl or tiles
• Sports to mark and colours
• Hoop type, lighting and wall padding
• Lease, landlord and council approvals
• Floor plans, photos, opening date and budget