Gravel Grid Gradient Calculator USE NIDAGRAVEL® GRIDS TO EFFECTIVELY STABILISE GRAVEL ON A SLOPE
Nidagravel® gravel stabilisation grids effectively prevent gravel from sliding down a slope over time. The large honeycomb panels or sheets are manufactured from plastic (a percentage of which is recycled) and backed with a membrane. Nidagravel® grids are simply laid over the prepared sub-base and cut to fit the required area, then filled with gravel. The honeycomb structure of the gravel stabilisation grids holds the gravel in place permanently within the hexagonal cells. This prevents gravel migrating down the slope, prevents loss of gravel and prevents ruts and potholes from developing. In addition to solving the problem of using gravel on a slope - Nidagravel® honeycomb grids provide a much more stable gravel surface that is firm underfoot, making the gravel slope easier to walk across. Nidagravel® creates a gravel surface that is wheelchair friendly, easy to walk on and push a pram or bike over as well drive and park on.

NIDAGRAVEL® MAXIMUM RECOMMENDED GRADIENT
  • We recommend using Nidagravel® 129, 130 and 140 to be laid on any gradient up to 15%.
  • On all gradients up to 15% the weight of the gravel fill holds the sheets in place and prevents longitudinal movement.
  • On all gradients up to 15% there will be no movement of gravel within the honeycomb cells and minimal surface migration.
  • On all gradients up to 15% no additional form of mechanical fixing is required.

  • NIDAGRAVEL® MAXIMUM RECOMMENDED GRADIENT
    Expressed as a Percentage: 15%
    Expressed as a Ratio: 1:6.67 or 1 in 6.67
    Expressed as a Degree: 8.53 degrees
    Expressed as a Fall (mm): 150:1000mm
    Expressed as a Fall (cm): 15:100cm
    Expressed as a Fall (m): 0.15:1m

    NIDAGRAVEL® GRADIENT CALCULATOR
    Use our simple gradient calculator below to work out the gradient of your slope.
  • Enter your RISE and RUN figures and the calculator will do the rest.
  • Enter any unit of measurement you like, BUT make sure the RISE and the RUN units of measurement used are both the same.
  • Enter your figures in Meters (M), Centimeters (CM), Millimeters (MM), Feet (FT) or Inches (IN).