Strip depth
Increasing the depth from 150 mm to 300 mm typically adds £1.20–£2.20/m² through greater excavation, haulage and stockpile formation.
Haul distance
Moving the stockpile beyond 100 m can add £0.80–£2.00/m², depending on dumper cycle times and haul-road condition.
Area and continuity
Large uninterrupted areas may reduce the standard rate by 15–30%, while small isolated workfaces can increase it by 25–60%.
Ground condition
Wet, soft or heavily rooted topsoil can increase costs by £0.60–£1.80/m² through slower production and additional plant support.
Access restrictions
Reliance on mini-excavators, small dumpers or banksmen can add £2.00–£5.00/m² compared with open-site working.
Double handling
Relocating or reshaping the stockpile later typically adds £1.00–£2.50/m² of original stripped area.