Material (a)
Turf / topsoil
Bark
Woodchip
Sand / gravel
Other materials and
depths
(a) Where the installed surfacing is verified (e.g. sieve test) as being in accordance with this table or carries a
test report according to EN1177, no additional testing is required
(b) For loose particulate material, add 100 mm to the minimum depth to compensate for displacement
4
Description
mm
-
20 to 80 particle size
5 to 30 particle size
0.25 to 8 grain size
As tested according to EN1177
Minimum
maximum free height of fall
depth (b)
mm
-
200
300
200
300
200
300
Critical fall height as tested
mm
≤ 1000
≤2000
≤3000
≤2000
≤3000
≤2000
≤3000