Plastic Grade Plate Spacer - 40/50mm (50 Pcs) - Black

Its primary purpose is to support reinforcing steel (rebar) at a specific, consistent height above the polythene damp-proof membrane in concrete slabs, ensuring the correct concrete cover is achieved.

The large base area prevents the spacer from puncturing the polythene damp-proof membrane and provides a stable footing, preventing the rebar from sinking into soft ground or insulation.

Yes, the clip-on version of this spacer is designed to facilitate use in vertical applications, such as in ground beams.

It refers to the concrete cover that the spacer is designed to provide. This specific variant is for applications requiring a 40mm to 50mm cover between the reinforcing steel and the surface of the concrete.

It is recommended to use a minimum of 8 supports per sheet of merchant mesh for adequate and even support.

This product line offers various sizes, including 25/30mm, 40/50mm, 65/75mm, and 90/100mm, to accommodate different concrete cover requirements.

Yes, it is designed for use with typical reinforcing steel in ground beams and ground floor slabs.

Ensure the rebar size is within the compatible range for the 40/50mm designation. Check that the clip mechanism is not obstructed or damaged. Apply gentle but firm pressure to secure the clip.

This is less likely due to the large base, but if the sub-base is exceptionally soft, consider laying a small piece of board or a larger, flatter object beneath the spacer for added support.

Verify that the correct spacer size (40/50mm) is being used for the required cover. Ensure spacers are placed at regular intervals as recommended (min. 8 per mesh sheet) and that the rebar is resting fully within the designated slot on the spacer.