💦 Commercial Pressure Washing Flat Surface Sizer

Calculate strip mall concrete sidewalks, drive-thru grease pads ($0.18/sqft), 8 GPM rotary surface cleaner cleaning speed (3,500 sqft/hr), chemical surfactants, and contractor hourly profits.

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📋 Job Scope & Pressure Rig Specs

📊 Job Economics & Effective Hourly Rate

Total Commercial Contract Invoice $4,000
Total Washing Labor Time on Site 7.14 Hours
Total Job Expenses (Chemicals + Fuel + Helper) $457.08
Net Contractor Cash Profit on Job +$3,542.92
Effective Contractor Hourly Rate $496.21 / hr
💦 Flow Rate Moat: Upgrading from a 4 GPM to an 8 GPM hot water pressure rig doubles cleaning speed, boosting effective contractor earnings to over \$450/hour.