Backfilling & Plinth Filling Quantity Calculation: Complete Earthwork BOQ as per IS 1200 | Free Excel Download
🏗️ Backfilling & Plinth Filling Quantity Calculation: Complete Earthwork BOQ as per IS 1200 | Free Excel Download
Sand Fill in Foundation | Backfilling in Plinth Slab | Deductions for PCC, Footing, Columns & Ground Beams
✓ IS 1200 (Part 1): 1992 | IS 2720 | CPWD Specifications
📥 Download Complete Backfilling BOQ Excel Sheet
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📊 Excel file includes: Sand fill in foundation (13 footings) | Plinth slab backfilling | Deductions for PCC, Footing, Columns, Ground Beams | Net quantity calculation
📐 Ground Beam & Plinth Layout Drawings
📋 Figure 1: Ground Beam and Plinth Beam Layout Drawing – Used for backfilling deduction calculation
📋 Figure 2: Excavation and Backfilling Measurement Sheet – Complete BOQ summary
📑 Jump to Section:
📐 Backfilling & Plinth Filling Quantity Calculation
Sand Fill in Foundation | Backfilling in Plinth Slab | As per IS 1200 (Part 1): 1992
📜 Relevant IS Codes for Backfilling & Earthwork
- IS 1200 (Part 1): 1992 - Method of Measurement of Building and Civil Engineering Works – Earthwork and Filling
- IS 2720 (Part 1 to 40) - Methods of Test for Soils – Compaction and density testing
- IS 4081: 1986 - Safety practices during excavation and filling operations
- CPWD Specifications (Vol. I) - Specifications for backfilling and compaction
📊 A. Sand Fill in Foundation (Depth: 1.5 ft)
| Item No | Items / Footing ID | No. | Length (ft) | Breadth (ft) | Depth (ft) | Quantity (cu.ft) |
|---|---|---|---|---|---|---|
| 2 注意： 按照完整楼板计算 根据图纸尺寸：23 ft × 36.5 ft Note: Complete slab calculation - The area includes all spaces between beams. Full plinth area shall be cast. |
||||||
| C1, C10 | 2 | 5.75 | 5.5 | 1.5 | 94.875 | |
| C2, C4, C5, C7, C8, C9 | 6 | 6.0 | 5.5 | 1.5 | 297.0 | |
| C3, C11 | 2 | 5.75 | 5.5 | 1.5 | 94.875 | |
| C6 | 1 | 6.25 | 5.5 | 1.5 | 51.5625 | |
| C12 | 1 | 5.5 | 5.25 | 1.5 | 43.3125 | |
| C13 | 1 | 5.25 | 5.0 | 1.5 | 39.375 | |
| Total Sand Fill in Foundation | 621.0 cu.ft | |||||
📊 B. Backfilling in Plinth Slab (Depth: 3 ft)
| Item No | Description | No. | Length (ft) | Breadth (ft) | Depth (ft) | Quantity (cu.ft) |
|---|---|---|---|---|---|---|
| 2 注意： 按照完整楼板计算 根据图纸尺寸：23 ft × 36.5 ft Note: Complete slab calculation - The area includes all spaces between beams. Full plinth area shall be cast.
| Backfilling in Plinth Slab (Full plinth area as per drawing - all spaces between beams) | 1 | 23.00 | 36.50 | 3.0 | 2518.5 |
| Total Gross Backfilling Quantity | 2518.5 cu.ft | |||||
📌 Note: Gross backfilling quantity includes sand fill in foundation (621 cu.ft) + plinth slab backfilling (2518.5 cu.ft) = 3139.5 cu.ft
✂️ C. Deductions from Backfilling (As per IS 1200)
📌 As per IS 1200, deductions shall be made for volumes occupied by concrete structures, columns, and beams within the backfilled area.
| Item No | Description | Deduction Quantity (cu.ft) | Remarks |
|---|---|---|---|
| Refer to the related measurement sheets for detailed deduction calculations. All deductions are as per actual site measurements and IS 1200 guidelines. | |||
| Total Deductions (PCC + Footing + Column + Ground Beam) | 1190.294 cu.ft (As per detailed measurement sheets) | ||
📦 D. Net Backfilling & Plinth Filling Quantity
Net Backfilling Quantity = Gross Quantity - Total Deductions
= (621.0 + 2518.5) - 1190.294
= 3139.5 - 1190.294 = 1949.206 cu.ft
= (621.0 + 2518.5) - 1190.294
= 3139.5 - 1190.294 = 1949.206 cu.ft
📦 Final Net Quantity = 1949.206 cu.ft = 55.24 cu.m
(1 cu.m = 35.315 cu.ft as per IS 1200 conversion factor)
(1 cu.m = 35.315 cu.ft as per IS 1200 conversion factor)
📜 Deduction Norms as per IS 1200 (Part 1): 1992
Key Clauses for Deductions in Backfilling:
- Clause 2.4.1: Deduction shall be made for volumes occupied by concrete structures, columns, and beams within the backfilled area.
- Clause 2.4.2: No deduction for small projections or reinforcement bars (less than 0.1 sqm cross-section).
- Clause 2.5: Backfilling measured in compacted volume, but deductions applied on gross volume before compaction.
- Conclusion: Total deductions applied as per detailed measurement sheets.
💰 Backfilling Billing Format & Rate Analysis
As per CPWD DSR 2026 - Rate includes Contractor Profit & Water Charges
💡 Note on Rate Analysis: The rate of ₹491 per m³ for backfilling as per CPWD DSR 2026 already includes contractor profit, water & electricity charges, compaction, and all other overheads.
📋 Final Backfilling & Plinth Filling Billing Statement
| Particulars | Quantity (m³) | Rate (₹) | Amount (₹) |
|---|---|---|---|
| As per CPWD DSR 2026 rates (indicative) | |||
| Backfilling & Plinth Filling Work (Including watering & compaction) | 55.24 | 491 | 27,123 |
| Total Basic Cost (Including Contractor Profit & Water Charges) | 27,123 | ||
| Add: GST @ 18% | 4,882 | ||
| GRAND TOTAL (Backfilling & Plinth Filling) | ₹ 32,005 | ||
💰 Note: This billing amount is only for backfilling and plinth filling work (including sand fill in foundation and plinth slab backfilling). Excavation, PCC, and footing concrete are billed separately.
❓ Frequently Asked Questions – Backfilling & IS 1200
📌 Common Questions About Backfilling Quantity Calculation
1. What is the standard IS code for backfilling measurement?
IS 1200 (Part 1): 1992 – Method of Measurement of Building and Civil Engineering Works for Earthwork and Filling.
2. What deductions are applied in backfilling calculation?
Deductions are applied for PCC volume, footing concrete volume, column volume up to plinth level, and ground beam volume as per detailed measurement sheets.
3. What is the depth of backfilling in plinth slab?
As per the measurement sheet, the backfilling depth in plinth slab is 3 ft.
4. How do you calculate net backfilling quantity?
Net Backfilling = (Sand Fill in Foundation + Plinth Slab Backfilling) - (Total Deductions). Net quantity = 1949.206 cu.ft = 55.24 cu.m.
5. How do you convert cubic feet to cubic meters?
Divide cubic feet by 35.315. Example: 1949.206 cu.ft ÷ 35.315 = 55.24 cu.m.
6. What is the compaction requirement for backfilling?
As per IS 2720, backfilling should be compacted in layers of 150-200mm to achieve 95% of maximum dry density.
7. What is the current market rate for backfilling as per CPWD DSR?
As per CPWD DSR 2026, the rate for backfilling is approximately ₹491 per m³ (including watering, compaction, and all overheads).
8. How do I get the Excel BOQ sheet?
Join our WhatsApp channel using the green button on this page, then the Excel download button will automatically activate.
📊 Backfilling & Plinth Filling Quantity Summary
Sand Fill in Foundation
621 cu.ft
17.58 m³
Plinth Slab Backfilling
2518.5 cu.ft
71.34 m³
Total Deductions
1190.29 cu.ft
33.70 m³
NET BACKFILLING
1949.21 cu.ft
55.24 m³
💰 Estimated Billing Amount
₹ 32,005
(Including GST @ 18%)
✅ Deductions Applied: As per detailed measurement sheets for PCC, Footing, Column up to plinth, and Ground Beam.
Backfilling & Plinth Filling Quantity Calculation: Complete Earthwork BOQ as per IS 1200 | Free Excel Download
Reviewed by civil engineer
on
May 17, 2026
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Reviewed by civil engineer
on
May 17, 2026
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