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Coxwell Self-Binding Path Gravel

Coxwell Self-Binding Path Gravel

Only available through Grundon, our exclusive Coxwell products are made from unique sponge gravel. It is the ultimate pathway material, as it combines durability and low maintenance with the aesthetic beauty of natural gravel. 

The material formed in what was once a tropical lagoon at our Wicklesham quarry, near Faringdon in Oxfordshire.

To achieve the best results it is screened and graded into three products.

1. Coxwell Self-Binding Path Gravel

This material has been proven in the marketplace for a number of years, and has earned a prestigious reputation for a pathway, with an attractive natural reddish/brown colour that matures and improves with age. It is remarkably easy to lay, and its hard-wearing surface requires minimum maintenance and aftercare.

This combination of sponge gravel and grit sand is screened to 30mm so that when rolled, it gives a fine, close textured surface. It is used extensively throughout Southern England and Wales on pathways and cycle tracks in parks, country estates, gardens and golf courses. On selected applications, the material has even been laid using an asphalt paver. Please see our laying guidelines for further details.

2. Coxwell 5mm Path Dressing

Coxwell 5mm path dressing is similar to the Coxwell self-binding path gravel, but thanks to a finer texture it can be used to add the finishing surface. It is used particularly on golf courses and sports fields, because it is unlikely to damage mower blades. Please see our laying guidelines for further details.

3. Coxwell Pathway Sub-Base

This is the ideal sub-base, and is highly compatible with the Coxwell self-binding path gravel. It is graded to 50mm down and compacts to form a sound, free-draining base for paths and walkways. Please see our laying guidelines for further details.

Coxwell self-binding path gravels have been used as:

  • Richmond Park, London
  • Cotswold Wildlife Park, Burford, Oxfordshire
  • Westonbirt Aboretum, Gloucestershire
  • Painshill Park, Chobham
  • Barge Walk, Kingston-upon-Thames
  • Waterside Park, Heathrow
  • Hambledon Horse Trials, Oxfordshire
  • Botanical Gardens, Oxford
  • Winchester Cathedral
  • Canal Towpath, Horsefair, Kidderminster
  • Hardcourt Arboretum, Oxfordshire
  • Whipsnade Zoo, Dunstable

Coxwell Laying Guidelines

Grundon’s self-binding path gravel is a naturally occurring material, quarried from a deposit of sponge gravel, a unique product with a very pleasing natural reddish/brown colouring which will improve and mellow as the pathway weathers.

For calculating volumes, use 1.8 tonnes per cubic metre, which relates to approx. 7 square metres per tonne when laid to a compacted depth of 75mm, and approximately 13 square metres per tonne when laid to a compacted depth of 40mm.

For new pathway constructions:

The foundation must be of sufficient stability to carry the proposed traffic. The area must have sufficient drainage which will ensure any storm water can drain away freely. Where a path is to be constructed which has sloping ground which would shed water onto the pathway, a French drain must be constructed on the slope side or sides alongside the pathway to take the excess water, so as not to flood the pathway. We would not recommend that Coxwell 5mm path dressing is used in these locations.

To achieve best results:

We recommend using Coxwell pathway sub-base, which is a totally compatible base material for the Coxwell self-binding gravel. This is laid 100mm thick and then compacted using a suitable weight vibrating roller. When the Coxwell pathway sub-base is fully compacted and is still moist, the Coxwell self-binding path gravel can be laid. This should be done in two layers, each 40mm thick to achieve a finished compacted depth of 80mm. Lay both layers 60mm thick, rake and compact each layer. The ideal compaction is best achieved by the initial first two passes of the roller being carried out with the roller vibrator turned off, and then continue compacting with the vibrator operating. The Coxwell pathway sub-base and the Coxwell self-binding path gravel must both be very moist but not too wet when rolling.

If a finer surface is required i.e. golf courses, Coxwell 5mm path dressing can be added. Follow the above laying guidelines, but when the self-binding path gravel has been laid and raked to the cambers required, leave uncompacted, and whilst still moist add 15mm of Coxwell 5mm path dressing, rake evenly and compact using a vibrating roller, as described in the previous paragraph with the first two passes of the roller with the vibrator turned off.

If any repairs should be required at a later date, then scarify the surface of the path, moisten and add a new layer of the same material and compact.

  1. Laying Guidelines must be passed onto the Laying Contractors.
  2. Laying Guidelines MUST be followed at all times.
  3. Moisture content MUST be maintained at all times.
  4. When newly laid there may be some initial staining but this will diminish with exposure to the elements.
  5. The pathway will strengthen and harden with the design usage and weathering.
  6. Be advised, horse and motorised traffic WILL NOT enable surface compaction to take place.
  7. The laying of Coxwell Self Binding Path Gravel is not recommended during frosty and or snowy weather conditions.

For further information contact:

Tel: 01491 834311
Fax: 01491 832 272


At Grundon, we produce a distinctive red textured path dressing called Redpave. It is a dolomitic limestone, screened at 3mm down. This material is popular on many golf courses and parks for the dressing of pathways. With 1.8 tonnes per cubic metre bulk density, one tonne of this dressing will cover approximately 10 square metres of pathway at 50mm thick.

As used at:

  • Frilford Heath Golf Club
  • Puckrup Hall Golf Club
  • Filton Golf Club
  • Goring and Streatley Golf Club
  • Hadden Hill Golf Club
  • Brickhampton Court Golf Club
  • Southfield Gold Club, Headington, Oxford
  • Badgemore Park Golf Club, Henley On Thames
  • Huntercombe Golf Club, Henley On Thames

Speak to a member of our aggregates team regarding samples, grading analysis, prices, or to request a brochure, please contact the Grundon aggregates sales office on 01491 834 311

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Tel: 01491 834 311

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