Ensure stable and precise spacing for reinforcing steel in your construction projects with our plastic mesh spacers. Specifically engineered for ground floor slabs and beams, our grade plate spacers are essential for optimal alignment and support. They play a crucial role in maintaining the structural integrity of reinforced concrete by ensuring that everything stays perfectly aligned during construction.
Available in 4 sizes, each spacer feature a large base area to safeguard the polythene film underneath from potential damage. The spacers' adaptable clip-on design facilitates easy application in both horizontal and vertical setups, making them a flexible choice for various construction requirements. As a best practice, we recommend using a minimum of eight supports per sheet of merchant mesh to guarantee optimal performance.
Product specifications
- Colour: Black
- Materials: Copolymer Polypropylene
- Bar compatibility: 6-12mm
- Large base to protect polythene film underneath
- Perfect for ground floor slab reinforcement
- Clip-on design
- Available in four sizes
How Many Plastic Mesh Spacers Do I Need?
Getting the right number of spacers ensures your mesh sits at the correct cover depth and stays stable during the concrete pour. Here is a simple guide:
Quick guide per mesh sheet
| Mesh Sheet Size |
Recommended Spacers |
| 3.6 m x 2.0 m (standard merchant mesh - A142, A193, A252) |
Minimum 8 spacers per sheet |
| Heavier loads or poor sub-base |
10-12 spacers per sheet |
Calculate by slab area
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Light domestic slabs (patios, paths, sheds): 0.5 spacers per m²
-
Driveways, garages, small commercial slabs: 0.75 spacers per m²
-
Heavy duty slabs, double mesh, poor ground: 1 spacer per m² or more
Example: A 5 m x 4 m patio (20 m²) at 0.5 spacers per m² = 10 spacers. Round up to the nearest pack and add 10-15% extra for overlaps and trimming on site.
Placement tips
- Place spacers in a staggered grid - not in straight lines - so the mesh is supported evenly
- Space spacers approximately 600-800 mm apart in both directions
- Add extra spacers around edges, laps and openings where mesh is more likely to move
- The large base protects your DPM - ensure it sits flat on the membrane before placing mesh
→ See our full spacer calculator guide for worked examples and slab area calculations.