Published 30 May 2026
by System Admin
IS 1200 Part 1 — Methods of Measurement: Earthwork
IS 1200 Part 1 provides standard rules for measuring earthwork in building and civil engineering works, including excavation, filling, lead, lift, trench excavation, surface excavation, embankment, trees removal, and classification of soil/rock.
1. Measurement sequence
Dimensions should be booked in the order of length × breadth/width × height/depth/thickness.
2. Unit of measurement
Earthwork is generally measured in cubic metre (m³). Areas are measured in square metre (m²) where applicable.
3. Rounding rules
Linear dimensions are measured nearest to 0.01 m, area nearest to 0.01 m², and cubic contents nearest to 0.01 m³.
4. Separate measurement conditions
Work must be measured separately for work under water, foul conditions, tidal conditions, and snow.
5. Soil classification
Excavated materials are classified as:
Soft/Loose Soil, Hard/Dense Soil, Mud, Soft/Disintegrated Rock, Hard Rock requiring blasting, and Hard Rock not requiring blasting.
6. Excavation measurement
Excavation quantity is calculated from authorized dimensions. No allowance is made for increase in bulk.
7. Surface excavation
Excavation exceeding 1.5 m width and 10 m² area, but not exceeding 300 mm depth, is treated as surface excavation.
8. Excavation over area
Excavation exceeding 1.5 m width, 10 m² area, and 300 mm depth is measured as excavation over area.
9. Trench excavation
Excavation for foundations, pipes, cables, etc., not exceeding 1.5 m width and not exceeding 10 m² plan area is measured as trench excavation.
10. Lead and lift
Lead is measured by the shortest practicable route. Initial lead is up to 250 m. Lift is measured from ground level; initial lift is up to 1.5 m.
Useful Figures to Create for Library/Blog
Earthwork Measurement Formula Figure
Quantity = Length × Breadth × Depth
Excavation Classification Flowchart
Surface Excavation → Excavation Over Area → Trench Excavation
Lead & Lift Diagram
Horizontal distance = Lead, vertical height/depth = Lift
Soil/Rock Classification Chart
Soft soil, hard soil, mud, soft rock, hard rock with blasting, hard rock without blasting
Trench Excavation Sketch
Show trench width, depth, working space, foundation line.
IS 1200 Part 1 provides standard rules for measuring earthwork in building and civil engineering works, including excavation, filling, lead, lift, trench excavation, surface excavation, embankment, trees removal, and classification of soil/rock.
1. Measurement sequence
Dimensions should be booked in the order of length × breadth/width × height/depth/thickness.
2. Unit of measurement
Earthwork is generally measured in cubic metre (m³). Areas are measured in square metre (m²) where applicable.
3. Rounding rules
Linear dimensions are measured nearest to 0.01 m, area nearest to 0.01 m², and cubic contents nearest to 0.01 m³.
4. Separate measurement conditions
Work must be measured separately for work under water, foul conditions, tidal conditions, and snow.
5. Soil classification
Excavated materials are classified as:
Soft/Loose Soil, Hard/Dense Soil, Mud, Soft/Disintegrated Rock, Hard Rock requiring blasting, and Hard Rock not requiring blasting.
6. Excavation measurement
Excavation quantity is calculated from authorized dimensions. No allowance is made for increase in bulk.
7. Surface excavation
Excavation exceeding 1.5 m width and 10 m² area, but not exceeding 300 mm depth, is treated as surface excavation.
8. Excavation over area
Excavation exceeding 1.5 m width, 10 m² area, and 300 mm depth is measured as excavation over area.
9. Trench excavation
Excavation for foundations, pipes, cables, etc., not exceeding 1.5 m width and not exceeding 10 m² plan area is measured as trench excavation.
10. Lead and lift
Lead is measured by the shortest practicable route. Initial lead is up to 250 m. Lift is measured from ground level; initial lift is up to 1.5 m.
Useful Figures to Create for Library/Blog
Earthwork Measurement Formula Figure
Quantity = Length × Breadth × Depth
Excavation Classification Flowchart
Surface Excavation → Excavation Over Area → Trench Excavation
Lead & Lift Diagram
Horizontal distance = Lead, vertical height/depth = Lift
Soil/Rock Classification Chart
Soft soil, hard soil, mud, soft rock, hard rock with blasting, hard rock without blasting
Trench Excavation Sketch
Show trench width, depth, working space, foundation line.
is 1200 part 1
Earth Work Measurement
Excavation