CM PRO
    CM PRO

    CM PRO free resource library

    Your ultimate free construction toolkit

    Calculators, PEC/FIDIC escalation, print-ready site formats and an AI contract advisor — built for site engineers, quantity surveyors and project managers.

    Explore tools Document formats
    Free calculators
    35+

    Free calculators

    Site formats
    25+

    Site formats

    Categories
    7

    Categories

    Available
    24/7

    Available

    Planning & QS

    Productivity Planner Pro

    172 searchable activities · 8 disciplines · Workforce dashboards & PDF sheets

    Open planner

    Why engineers use CM PRO tools

    Everything for daily site calculations in one place

    Instant results

    Calculations run in your browser with two-decimal precision.

    Free forever

    Use every calculator free. Sign up only to print or export.

    Privacy first

    Your inputs stay on your device unless you choose to save.

    AI powered

    Contract Specialist Pro interprets FIDIC clauses and local law.

    Always growing

    New calculators and formats are added regularly.

    Site-grade quality

    Metric and Imperial units, built by construction professionals.

    The toolkit

    Concrete Slab CalculatorConcrete Column CalculatorRound Column ConcreteFooting Concrete CalculatorStaircase ConcreteBrick CalculatorConcrete Block CalculatorWater-Cement RatioRebar Weight CalculatorSlab Steel EstimateStirrup Cutting LengthSteel Quantity by PercentagePlaster CalculatorPaint CalculatorTile CalculatorFloor Screed CalculatorFalse Ceiling Board CalculatorExcavation CalculatorConcrete Slab CalculatorConcrete Column CalculatorRound Column ConcreteFooting Concrete CalculatorStaircase ConcreteBrick CalculatorConcrete Block CalculatorWater-Cement RatioRebar Weight CalculatorSlab Steel EstimateStirrup Cutting LengthSteel Quantity by PercentagePlaster CalculatorPaint CalculatorTile CalculatorFloor Screed CalculatorFalse Ceiling Board CalculatorExcavation Calculator
    Dump Truck LoadsBackfill & CompactionSlope & GradientMarkup & MarginLabour Cost CalculatorIPC Retention & AdvancePEC / FIDIC Price EscalationEquipment Loan EMIEarned Value (EVM)Activity DurationPERT EstimateWeighted ProgressLength ConverterArea ConverterVolume ConverterWeight ConverterPressure / Strength ConverterDump Truck LoadsBackfill & CompactionSlope & GradientMarkup & MarginLabour Cost CalculatorIPC Retention & AdvancePEC / FIDIC Price EscalationEquipment Loan EMIEarned Value (EVM)Activity DurationPERT EstimateWeighted ProgressLength ConverterArea ConverterVolume ConverterWeight ConverterPressure / Strength Converter

    Browse by category

    Find the right tool for every site decision

    Concrete & Masonry

    8

    Concrete volumes, mixes, blocks and bricks.

    Explore category

    Steel & Rebar

    4

    Bar weights, lengths and steel quantities.

    Explore category

    Finishes

    5

    Plaster, paint, tiles, flooring and ceilings.

    Explore category

    Earthwork & Site

    4

    Excavation, backfill, trucks and slopes.

    Explore category

    Estimating & Cost

    5

    Rates, markups, labour and cash flow.

    Explore category

    Project Management

    4

    Schedules, progress, productivity and dates.

    Explore category

    Unit Converters

    5

    Length, area, volume, weight and pressure.

    Explore category

    Document formats

    25+ print-ready A4 site formats and method statements.

    Open formats

    Contract Specialist Pro

    AI interpretation of FIDIC clauses, PEC and local law.

    Ask a question

    Concrete & Masonry

    Concrete volumes, mixes, blocks and bricks.

    8 tools

    Steel & Rebar

    Bar weights, lengths and steel quantities.

    4 tools

    Finishes

    Plaster, paint, tiles, flooring and ceilings.

    5 tools

    Earthwork & Site

    Excavation, backfill, trucks and slopes.

    4 tools

    Estimating & Cost

    Rates, markups, labour and cash flow.

    5 tools

    Project Management

    Schedules, progress, productivity and dates.

    4 tools

    Unit Converters

    Length, area, volume, weight and pressure.

    5 tools