How Much Floor Paint Do I Need?
Quick Answer
Approximately 3 litres for a 15m² garage floor (2 coats)
Based on: 15m² floor area, 8–12m²/L coverage, 2 coats
How We Calculated This
Floor paint coverage depends on the surface type and porosity:
- Floor area: 15m²
- Coverage rate: ~10m²/L (mid-range for concrete)
- Per coat: 15 / 10 = 1.5L
- Two coats: 1.5 × 2 = 3.0L
Coverage by Floor Paint Type
- Water-based floor paint: 10–12m²/L
- Solvent-based floor paint: 8–10m²/L
- Epoxy floor paint: 6–8m²/L (thicker film)
- Anti-slip floor paint: 6–10m²/L (textured)
Surface Preparation
Concrete floors must be clean, dry, and free of oil, grease, and loose material. New concrete should cure for at least 28 days. Highly porous or dusty concrete benefits from a primer/sealer coat first, which adds ~1–1.5L to total consumption.
Common Floor Areas
- Single garage: ~15m² (5m × 3m)
- Double garage: ~30m² (6m × 5m)
- Workshop: 20–40m²
- Utility room: 5–8m²
Cost Guide
Floor paint typically costs £15–30 per litre for standard products, or £30–60 per litre for epoxy systems. A single garage therefore costs £45–90 in paint for 2 coats.
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Last updated: April 2026
