Permanent Paddock SolutionsHoofGrid, the original German-engineered
For muddy grounds or grass || Indoors or Outdoors || Arenas and Round Pens || Paddocks and Turnouts || Barns and Aisles || Loading and Washing Areas || Driveways and Parking – Grass or Gravel || Ramp or Slope Soil Stabilization || Terra-forming || Landscaping || Grass protection from traffic damage
Usable arenas, paddocks and turnouts 365 days a year.
The original equestrian grid system permanently solves your muddy paddocks problems.
The most successful soil stabilization system in Europe, widely tested and applied worldwide for years, is now available to the American livestock and equine industries.
How it works . . .          
Load-bearing capacity: up to 70,000 lbs. per square foot.: Working on the ‘snowshoe principle,’ the grids disperse the weight of the stock over a larger surface area (effectively, 689 square inches for a four-legged animal).

How strong was that?
During installation, maintenance, or normal usage – earthmoving equipment, tractors, steamrollers or fully loaded dump trucks may be driven on top of the grids.
Because the entire systems interlocks, for the horse or steer to sink into the mud, theoretically it would need to weigh about 160,000 lbs. or more.

The result . . .     
Permanently retire from your paddock improvement career, and forever forget the ‘spread 6-12 inches of gravel and replace regularly’ system.
The grids permanently separate the top layer from the ground sub-base, preventing intermingling of the layers.  In many conditions, no foundation work is required.  In the rest, much less stone is required, and never needs replaced!
Hoof-Grid or HoofGrid HD?

For most equestrian applications the standard Hoof-Grid is sufficient.
Some climates may require HoofGrid HD.
In those cases requiring heavy-duty grids, the extra cost per units is often offset by the decreased: foundation work (sub-base), top layer and maintenance requirements.
Strong and FLEXIBLE!  The German ORIGINAL...
Manufactured from Post-Consumer Recycled Content reinforced PE (Polyethylene).  
This is not the fracture-prone, substandard HDPE grid systems previously familiar to some in the USA.
It is able to withstand climate extremes from minus 58° to +194° Fahrenheit while remaining flexible.
Video - HoofGrid Installation
For more information about HoofGrid™ please also see:
Very informative: Stock/Equine Stalls, Farmers Markets, Fairgrounds, Dog Exercise Areas, Playgrounds, etc.
Non-footing installations:
VISIT ON THE WEB: A client's Grass Driveway project/video web site >> www.stabiligrid.net/stalnecker.htm

European References:
Arena 1 :: Markus Duenser, European Reining Champion - non-professional division
(Right Click & Save PDF Brochures)

Arena 2:: Mehrerau Riding Academy
Letter of Recommendation

CSIO Competition :: REITARENA CSIO 13. – 15.05.2005

Specifications, Technical Data and Certifications: (Information provided by the German manufacturer)
European testing and product information: (ISO-9001 compliant/certified)
(i) PHYSICAL CHARACTERISTICS - From BECETEL, the Belgian Research Centre for Pipes and Fittings
(ii) Environmental Compatibility, Suitability for Public Roadways, Non-toxic to plants etc, Public Roadways Expected lifespan = "indefinite" TÜV/NORD certification, valid through July 2009
(iii) German Text certification of recycled content: "AUSSCHREIBUNGSTEXTE: Ecoraster Kunststoff-Gitterelemente | Standardisierte Leistungsbeschreibung für den Hochbau (LB-H) | Leistungsgruppe (LG) 13. AUSSENANLAGEN | 131.C Pflasterungen mit Rasengitter aus Recycling - Kunststoff"

(iv) Information for the US market:
~ 100% recycled content (PE)
~ 100% Post-consumer Recycled Content
~ 100% non-toxic to plants, animals and micro-organisms (chemically inert)
~ UV-resistant, resistant to salt (including marine or street salts), leaching compounds (acids from nutrients, ammonia from Urea, etc.) solvents (alcohol, petroleum derivatives, etc.)