🏗️ PCC Rate Analysis
Plain Cement Concrete — M5 (1:4:8) & M10 (1:3:6) Foundation
📋 Table of Contents
PCC (Plain Cement Concrete) is the most fundamental element of any foundation. Before placing reinforced concrete, a levelling bed of PCC is laid to provide a clean, stable working surface. Without accurate PCC rate analysis, foundation costs are almost always under-estimated.
This guide explains the complete method to calculate PCC rate analysis for M5 (1:4:8) and M10 (1:3:6) grades — with a free calculator that generates a full report with PDF and Excel export.
What is PCC and Why is Rate Analysis Important?
PCC stands for Plain Cement Concrete — a mixture of cement, coarse sand, and graded stone aggregate without any reinforcement. It is used as a levelling bed below footings, as a flooring base, and in mass concrete applications where strength requirements are moderate.
Foundation Bed (Footing PCC)
Laid below column footings, strip footings, and raft foundations to provide a clean, level surface for shuttering and reinforcement work.
Flooring / Plinth Level
Used at plinth level and under floor finishes. Also as a base for waterproofing treatment in bathrooms, terraces, and basements.
A G+2 residential project has 18 m³ of PCC M5 below footings. The engineer used a rough estimate of ₹3,200/m³ without breaking down material, labour, and machinery separately.
Actual rate analysis shows ₹3,680/m³ after including proper labour rates and machinery cost.
M5 vs M10 — Which Grade to Use?
The two most common PCC grades in Indian construction are M5 (1:4:8) and M10 (1:3:6). The grade selection depends on the structural requirement and the applicable standard (IS 456 / CPWD DSR).
| Parameter | M5 (1:4:8) | M10 (1:3:6) |
|---|---|---|
| Mix Ratio | 1 : 4 : 8 | 1 : 3 : 6 |
| Characteristic Strength | 5 N/mm² | 10 N/mm² |
| Cement Content / m³ | 3.42 Bags | 4.44 Bags |
| Sand / m³ | 0.474 m³ | 0.462 m³ |
| Aggregate / m³ | 0.948 m³ | 0.924 m³ |
| Typical Use | Footing levelling bed | Footing bed + plinth filling |
| CPWD DSR Item | 5.1.1 | 5.1.2 |
How are Material Quantities Calculated per m³?
For nominal mix PCC, the dry volume factor is 1.54 (to account for voids and compaction). All quantities are then divided by the sum of mix proportions to get individual material volumes.
M5 Grade (1:4:8) — Calculation
Sum of ratio parts = 1 + 4 + 8 = 13
Cement volume (m³) = (1 / 13) × 1.54 = 0.1185 m³
Cement in bags = 0.1185 ÷ 0.0347 = 3.42 bags
Sand volume (m³) = (4 / 13) × 1.54 = 0.474 m³
Aggregate volume (m³) = (8 / 13) × 1.54 = 0.948 m³
M10 Grade (1:3:6) — Calculation
Cement volume (m³) = (1 / 10) × 1.54 = 0.154 m³
Cement in bags = 0.154 ÷ 0.0347 = 4.44 bags
Sand volume (m³) = (3 / 10) × 1.54 = 0.462 m³
Aggregate volume (m³) = (6 / 10) × 1.54 = 0.924 m³
What Goes Into a PCC Rate Analysis?
A complete PCC rate analysis per m³ has five sections: Material, Machinery, Labour, Overheads, and Contractor's Profit. Each must be individually calculated and documented.
A. Material
Cement (bags), Coarse Sand (m³), Graded Stone Aggregate 20mm (m³) — quantities per m³ × current market rate.
B. Machinery
Concrete Mixer (all inclusive per m³) + Concrete Vibrator (per m³) — calculated using our Mixer/Vibrator calculator.
C. Labour
Foreman, Mason, Male/Female Mazdoor, Bhisti — in days per m³ as per CPWD norms. OR a direct labour rate per m³.
D. Water & Electric Charge
Typically 1–2% of prime cost for water. Electric charge depends on site — 0% if client-supplied.
E. Overhead Charge
Site office, supervision, tools & plants — typically 8–12% of prime cost as per project contract terms.
F. Contractor's Profit
10–15% on total cost including overheads — as agreed in the contract or as per CPWD DSR norms.
Complete Rate Analysis Formula
Prime Cost = Material + Machinery + Labour
// Step 2 — Add charges on Prime Cost
Water Charge = Prime Cost × Water%
Electric Charge = Prime Cost × Electric%
// Step 3 — Overhead and Profit (on subtotal)
Subtotal = Prime Cost + Water + Electric
Overhead = Subtotal × Overhead%
Profit = Subtotal × Profit%
// Step 4 — Grand Total and Analysis Rate
Grand Total = Subtotal + Overhead + Profit
Rate per m³ = Grand Total ÷ Volume (m³)
PCC IN FOUNDATION (1:4:8)
| Description of Item | Qty | Unit | Rate (₹) | Amount (₹) |
|---|
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Standard PCC Cost Reference (2024)
Typical figures for Indian construction sites. Adjust for local market rates, transport costs, and applicable DSR edition.
| Item | M5 per m³ | M10 per m³ | Basis |
|---|---|---|---|
| Cement Cost | ₹958 (3.42 × ₹280) | ₹1,243 (4.44 × ₹280) | ₹280/bag |
| Sand Cost | ₹1,185 (0.474 × ₹2,500) | ₹1,155 (0.462 × ₹2,500) | ₹2,500/m³ |
| Aggregate Cost | ₹1,327 (0.948 × ₹1,400) | ₹1,294 (0.924 × ₹1,400) | ₹1,400/m³ |
| Total Material | ≈ ₹3,470 | ≈ ₹3,692 | Before wastage |
| Machinery (Mixer + Vib.) | ₹112 | ₹112 | ₹96 + ₹16 |
| Labour (Detailed) | ₹250 – ₹350 | ₹250 – ₹350 | CPWD norms |
| Overhead @ 8% | ≈ ₹305 | ≈ ₹325 | On prime cost |
| Profit @ 10% | ≈ ₹381 | ≈ ₹406 | On prime cost |
| TOTAL ANALYSIS RATE | ≈ ₹4,518 | ≈ ₹4,885 | All inclusive |
Mistakes to Avoid in PCC Rate Analysis
Forgetting Dry Volume Factor
Using wet volume directly (1 m³) instead of dry volume (1.54 m³). This underestimates all material quantities by 35% and makes the analysis incorrect.
Skipping Machinery Cost
PCC is mixed in a concrete mixer and consolidated with a vibrator. Their combined cost is ₹100–120/m³ and must be included separately in the analysis.
Wrong Labour Norms
Using thumb-rule labour rates instead of CPWD-norm based day rates per trade. This causes inconsistency with BOQ and audit queries.
Applying Profit on Wrong Base
Profit should be applied on the subtotal (prime cost + water + electric), not on the grand total. Applying it on grand total double-counts overheads.
Using M5 Where M10 is Specified
Specifying the wrong grade to save cost is a structural deficiency. Always confirm the grade from the structural engineer's drawing before preparing the rate.
Not Updating Market Rates
Cement and aggregate prices fluctuate. A rate analysis prepared 6 months ago may be 12–18% below current market — always update before submission.
Pro Tips for Site Engineers
- 01
Use the Mixer/Vibrator Calculator first to get the exact per-m³ machinery cost for your site conditions. Then enter that figure in Section 5 of the PCC calculator above for a fully traceable analysis chain.
- 02
Add 2–3% cement wastage and 5% aggregate wastage as per CPWD DSR norms when preparing a formal rate analysis for government or institutional clients. For private clients, match the wastage to actual site conditions.
- 03
Use Detailed Labour mode for CPWD/PWD submissions — the individual trade-wise breakdown (Foreman, Mason, Mazdoor, Bhisti) is required for formal rate analysis. Use Direct Rate for quick internal estimates.
- 04
Export to PDF for client presentations and to Excel for further calculations — the PDF report includes a professional letterhead with project details; the Excel file is structured for easy integration into your full BOQ.
- 05
Prepare separate rate analysis for M5 and M10 before starting the project and lock the rates in the contract. Foundation work involves both grades and mixing the rates causes billing disputes during final account settlement.
PCC Rate Analysis Workflow at a Glance
Select Grade
M5 or M10 as per structural drawing
Material Qty
Dry volume × ratio ÷ sum of parts
Machinery
Mixer + Vibrator cost per m³
Labour
Trade-wise days × daily rate
Overhead + Profit
% on prime cost subtotal
Export Report
PDF + Excel for audit trail
