Harmer Deck Supports allow concealed drainage underneath paving slabs, for terraces, walkways, balconies and flat roofs, particularly inverted roof constructions. It is recommended that the substrate is overlaid with a geotextile filter sheet prior to installation of paving supports.

Uni-Ring is a support system where each ring supports the corners of four adjoining slabs whilst maintaining open joints between them. Shims provide fine height adjustment.

General information


Injection-moulded polyethylene


176 mm diameter, 16 mm thick (stackable)

Uniclass 2015

Pr_20_85_47_22 Decking and paving pedestalsPrimary


J21/840 Laying precast concrete paving slabs

J31/370 Precast concrete paving slabs

J31/80 Precast concrete paving slabs

J42/467 Support system for precast concrete paving slabs

Specification data - Decking and paving pedestals

Product Reference

Harmer Deck Uni-Ring

Standard product features


Injection-moulded polyethylene.


176 mm diameter, 16 mm thick (stackable).

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