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X-Grid Filling Guidance

Fill Medium Guidance X-Grid® 

If using X-Grid® ground reinforcement grid as a sub-base layer in place of a tarmac or concrete base, the grid should be filled with a suitable and appropriate medium to provide maximum stability and durability of the installation. We recommend filling the X-Grid® with angular gravel with a stone diameter of up to 20mm. Limestone chippings are a cost effective and suitable choice for the fill, however it can be substituted for another material which meets this criteria.

Once the grid has been filled, we highly recommend the use of a vibrating plate compactor (whacker) to consolidate the gravel and help the X-Grid® to bed into the sand layer below. If you are in any doubt regarding your choice of gridfill material, please seek advice from our helpful and knowledgeable team.

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