Type lay artificial grass indoors hard floors into any search bar and most results hand you a trowel, a bag of sand and advice written for a garden. The brief behind the phrase is rarely a garden. It arrives from a gym fit-out, an office breakout zone, a shop floor or an exhibition hall, and it carries an opening date.
An artificial turf installation indoors skips the digging, the compacting and the drainage layers, so the job looks simpler. It is not. The work moves from the ground to the decisions: the floor you start from, the fixing you commit to and the roll you order. We see both outcomes from our side of the line — floors that still read factory-poured years on, and seams that telegraph through the pile within months. The difference is decided before the roll ships.
Why Indoor Artificial Turf Is a Different Job
The six words compress three separate trades into one enquiry. Hard floors arrive in at least four tempers: sealed concrete, porcelain or ceramic tile, timber boards, and raised access floors hiding services in commercial buildings. Each one accepts a different fixing, and each one hides a different defect.
Outdoors, a contractor budgets for excavation, a compacted sub-base and drainage falls. Indoors all three vanish, and what remains is unforgiving in a different way: whatever the hard floor hides, the turf will display.
The callers do not ask identical questions, either. Gym fit-outs ask about impact and noise. Offices ask about cables and chair wheels, because a wheeled chair does not roll across pile the way it rolls across tile, and the layout needs that admission up front. Retail teams ask about colour under warm lighting, which no screen shows honestly.
That is why our team treats an indoor enquiry as a subfloor question first and a grass question second. Roll spec, pile height and fixing method all follow from what the floor will admit.
Check the Hard Floor Before You Start
Every artificial turf installation over a hard floor lives or dies on three checks: level, dry and sound. Teams that plan to lay artificial grass indoors hard floors such as sealed concrete, porcelain tile or timber boards should interrogate the slab before they price the grass.
Concrete flaws do not disappear under a carpet of green. Cracks, bumps and low spots eventually print through the pile and wear it unevenly. Patching compounds and self-levelling fills therefore get their full curing window before the roll goes anywhere near the room.
Moisture is the quieter failure. Water trapped beneath an indoor surface has nowhere to go, and it turns into odours, mould or backing damage rather than draining away. A slab that dries dark after a mop test needs attention before it needs turf.
| Floor type | Check before laying | Why it matters |
|---|---|---|
| Sealed concrete | Cracks, hollow patches, level across doorways | Slab flaws print through the pile and wear it unevenly |
| Tile | Hollow or loose tiles, proud grout lines | Movement under the roll rocks every seam above it |
| Timber boards | Protruding fixings, loose boards, old adhesive | A proud screw or nail reads straight through thin pile |
| Raised access floor | Panel flatness, load spread at joints | Panels deflect under point loads and open the joints |