# Hollow VS Solid 1.8cm PP Interlocking Garage Floor Tiles: Which One Is Better For Your Business?
When buying 1.8cm PP interlocking garage floor tiles, most buyers get confused: hollow grate version or solid cover tile? Each design has its own best application scenario.
## Hollow Grate (Drainage Grille)
Core feature: Grid hollow structure, fast water pass through.
✅ Best for: Car wash bays, auto detailing rooms, areas with lots of running water.
✅ Pros: Quick drainage, prevent water pooling, anti-slip, easy to wash mud and foam away.
❌ Limitation: Small debris may drop through gaps.
## Solid Cover Tile
Core feature: Full closed solid PP panel.
✅ Best for: Dry garage area, warehouse, workshop walkway, 4S showroom.
✅ Pros: Flat smooth surface, dust-proof, easy to sweep solid rubbish, better for display.
❌ Limitation: Not suitable for large volume running water.
## Can you mix hollow and solid tiles?
Yes! Many 4S shops use mixed layout: hollow grate tiles in washing bay, solid tiles in waiting area and showroom. This is a cost-effective solution for auto service centers.
## Shared advantages of both 1.8cm PP tiles
- Made of 100% virgin PP material, chemical resistant
- Snap interlock design, glue-free installation
- 18mm thickness for heavy load bearing
- Removable, modular replacement
## Quick selection rule
👉 Heavy water use (car wash): Choose hollow grate floor.
👉 Dry parking / showroom / storage: Choose solid PP tile.
👉 Whole auto service shop: Mix hollow + solid.
If you want to customize mixed flooring solution, visit our <a href="oloha-1854.myshopify.com">1.8cm PP interlocking garage floor grate</a> page to check both hollow and solid options.
