Preliminaries & General (P&G) Estimator
Estimate preliminaries and general costs including site staff, temporary facilities, equipment, utilities, and site overhead based on project duration and value.
Enter project details to estimate P&G costs
FINANCIAL DISCLAIMER
This calculator provides INDICATIVE FIGURES for reference purposes only.
Important:
1. Results are based on standard formulas and user-provided inputs. Actual contractual amounts may differ based on specific contract terms and conditions.
About This Calculator
The Preliminaries & General (P&G) Estimator helps contractors and quantity surveyors calculate site overhead costs for construction projects across the UAE and Gulf. Estimate costs for site staff, temporary facilities (offices, stores, toilets), plant and equipment, utilities, insurance, and other indirect costs based on project duration and contract value. Essential for accurate tender pricing and project budgeting.
When to Use This Calculator
- Preparing tender submissions with accurate preliminaries pricing
- Budgeting site setup and running costs for new projects
- Comparing P&G costs across different project durations
- Negotiating preliminaries lump sums with clients
- Calculating monthly site overhead for cash flow projections
How to Use This Calculator
Enter Project Details
Input project value, duration in months, and location (affects labor and equipment rates).
Select Site Staff
Choose required positions: project manager, site engineer, QS, safety officer, admin, etc.
Add Facilities & Equipment
Select temporary facilities (offices, stores, toilets) and site equipment (cranes, generators).
Include Utilities & Insurance
Add power, water, communications, and insurance requirements.
Review P&G Summary
Get detailed breakdown and percentage of contract value (typically 8-15% for Gulf projects).
Typical Scenarios in UAE & Gulf Projects
Main contractor prepares tender for 40-storey residential tower with 30-month program. P&G Estimator calculates site team costs (PM, 4 engineers, QS, safety), tower crane rental, temporary offices, and utilities totaling 12% of contract value.
Civil contractor estimates preliminaries for 50km road project across remote desert terrain. Tool accounts for extended camp facilities, generator power, water tankering, and additional supervision staff for multiple work fronts.
Frequently Asked Questions
Take Your Calculations Further
This calculator reflects the logic built into Arkan's construction management platform.
Last Updated: January 2026
Standards Reference: RICS NRM 2 Preliminaries Classification, AACE Cost Estimate Classification