Vehicle grade is ideal for creating natural and inviting driveways, car parks and turning areas where traffic is generally cars, SUVs and the occasional heavy vehicle. It stays looking flat, uniform and professional. Pebbles do not migrate in areas subject to repeat wheel tracking or turning. Vehicle grade Natural Paving can be used to stabilise pebbles in public car parking areas. A Vehicle grade pavement is stable and permeable.
Pebbles stay flat and firm like a hard paved surface making it ideal for driving or walking on, even in stilettos, or with walking sticks. Cycle wheels won’t sink in the pebbles. It is also good for hard-stand areas for trailers and caravans.Pebbles need to be clean, and ideally, graded from 8 to 14mm.
It is safe to use on slopes of up to 1 in 6 (9.5° slopes) with rounded aggregate, and 1 in 5 (or 11 degrees) if using a crushed aggregate.
1.14m x 2.15m (2.45m2) / 5.4kg per mat
1.2m x 0.8m (0.96m2) / 1.7kg per mat
42mm dia x 55mm depth (with pebbles)
(empty) 60 tonnes per m2
(filled) 250 tonnes per m2
Pebble quantity calculator
Vehicle Grade holds 94kg or 55 litres of pebbles per square metre (1 m3 pebbles will cover 18m2, or One tonne pebbles will cover 10.7m2)
(welded to mat) 80gsm non-woven
Light cream and dark grey
Max slope with:
Round pebbles 1 in 6 or 9.5 degrees
Crushed gravel 1 in 5 or 11 degrees
* pebbles vary in density from 1.5t/m2 to 1.8t/m2 depending on source.
Excavate to form sub grade at a depth suitable for your pavement.
Excavate 210mm or more if required. The minimum recommended depth of basecourse is 125mm. For the driveway to carry SUV's and occasional trucks add 50% (65mm) to the depth of the base-course. If required for handling water, and the sub-grade is impermeable, contour the sub-grade so water will drain to a filter fabric wrapped drainage coil, and excavate trenches and runoff areas for drainage coil, or connect it with the storm water drainage. If required because of soft, wet or clay foundation conditions, lay mud stop on the sub-grade.
LAY THE BASE COURSE
Lay AP40 basecourse and compact it with a plate compactor to a compacted depth of 125mm or more if required.
INSTALL THE EDGING
Edging is required all around your paved area. It protects the edge of the Natural Paving mat, retains the pebbles on the mat, and makes a suitable edge so mowers don't fling pebbles. You can use any material for edging, or butt the mat against walls or existing paved areas For pathways, place the edging on the subgrade, but for driveways you lay the base course first.
Lay a 35 to 40mm layer of bedding material on the compacted base course. Screed the bedding material to contour the surface close to the finished shape, and compact it. Bedding material is AP7 or bedding sand.
LAY THE NATURAL PAVING MATS
Natural Paving mats are large and easy to lay. They have geotextile welded to the base to anchor it down and prevent weeds growing through it. At two edges of the sheet there is an overlap area in the mat that gives continuity to the weed resistance. There is no clipping together required. The mats can be cut with a hand saw, circular saw, cut off disc. You can easily free form the mats to follow complex shapes.
SPREAD THE PEBBLES
Pour your pebbles or gravel onto the mats and spread with rakes or the like. The pebbles will settle into the mats over time, so fill the mats 20mm deeper than the mat surface and it will settle to a long term thickness of about 10 to 15mm over the top of the mat. This hides the mat so it is invisible, and protects the mat from the sun.