Cost Estimation Software

Estimate Smarter.
Build Greener.

Advanced cost estimation with built-in carbon tracking for sustainable projects. Make data-driven decisions that reduce budgets and environmental impact.

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Trinity dashboard — project KPIs, cost totals, and recent projects

Key Features

Powerful capabilities designed to transform your cost estimation process

Trinity project summary — cost totals, top items, margins, and resource breakdown

Real-time cost analytics

  • Dynamic dashboards that update automatically
  • Instant insights into budget performance
  • Resource allocation tracking at a glance
  • Customizable views for different stakeholders
Trinity Carbon Emissions dashboard — Scope 1, 2, and 3 breakdowns with emission intensity metrics

Built-in carbon tracking

  • Track embodied carbon across all materials
  • GHG Protocol-aligned Scope 1, 2, and 3 emissions
  • Emission intensity metrics per dollar spent
  • Identify carbon hotspots by project section
Trinity Breakdown Editor — formula column with line references and resource rates

Powerful calculation engine

  • Formula system with line references and variables
  • Automatic recalculation with circular reference detection
  • Seamless Excel import/export integration
  • Full undo/redo support for all operations

Carbon Emissions Tracking

Industry-leading carbon accounting built into every estimate

Trinity's carbon emissions module transforms your project estimates into comprehensive environmental impact assessments, enabling you to make informed decisions about carbon footprint reduction while maintaining accurate cost tracking.

Comprehensive GHG Protocol-Aligned Carbon Accounting

  • Full support for Scope 1, 2, and 3 emissions tracking aligned with Greenhouse Gas Protocol standards
  • Scope 1: Direct emissions from owned or controlled sources
  • Scope 2: Indirect emissions from purchased energy
  • Scope 3: All other indirect emissions in the value chain

Resource-Based Emission Tracking

  • Carbon emission factors assigned to every resource (labor, equipment, materials)
  • Emission factors stored in industry-standard units (kg CO2e per unit of consumption)
  • Configurable emission scopes for each resource type
  • Supports both simple and built-up resources with emission calculations

Intelligent Initialization System

  • Automatic emission factor initialization based on resource type
  • Default emission factor library for common resource categories
  • One-click initialization for entire projects or selective resource updates
  • Smart detection of resources missing emission data

Activity-Based Calculations

  • Activity data tracking (kWh consumed, liters of fuel, kilograms of materials)
  • Automatic calculation: Emissions = Activity Data × Emission Factor
  • Formula-based calculation support for complex scenarios
  • Real-time recalculation as project resources and quantities change

Cost Code & WBS Integration

  • Carbon emission allocations tied to cost code structures
  • Track environmental impact by work breakdown structure
  • Emission intensity metrics (kg CO2e per dollar spent)
  • Identify carbon hotspots by project section or activity

Advanced Analytics & Reporting

  • Emission summaries by scope (Scope 1/2/3 breakdowns with percentages)
  • Resource-level emission details with usage counts and totals
  • Top emitters identification and ranking
  • Emission intensity analysis (emissions per unit cost)
  • Drill-down capabilities from summary to individual line items

Data Quality & Verification

  • 5-point data quality rating system (1=lowest, 5=highest quality)
  • Verification workflow with approval tracking
  • Verification notes and user attribution
  • Verification date stamping for audit trails
  • Age tracking for emission calculations (flags data older than 30 days)

Comparison & Trend Analysis

  • Period-over-period comparison capabilities
  • Emission type comparisons
  • Change tracking and delta analysis
  • Historical trend visualization

Export & Reporting

  • Excel export with comprehensive filtering options
  • Customizable emission reports by scope, resource type, or cost code
  • Saved filter configurations for repeated reporting
  • Professional formatting with emission breakdowns

Visual Dashboard

  • Modern card-based UI with real-time metrics
  • Summary cards showing total emissions across all scopes
  • Resource count and emission source tracking
  • Interactive DataGrid with sorting, filtering, and grouping

Audit Trail & Compliance

  • Complete calculation history with timestamps
  • Calculation method documentation (Resource-based, Formula, or Manual)
  • Notes and description fields for documentation
  • Source attribution for emission factors
  • Activity data preservation for compliance reporting

Flexibility & Customization

  • Custom emission unit support beyond standard kg CO2e
  • Formula expressions for complex emission scenarios
  • Multiple calculation methods per allocation
  • Active/inactive status for historical tracking

Technical Capabilities

Enterprise-grade features for professional cost estimation

Professional Desktop Application

  • WPF desktop application with responsive, theme-aware UI
  • Multiple built-in themes: Dark, Light, Ocean, High Contrast, and Light Plus

Comprehensive Cost Management

  • Direct cost tracking with detailed breakdown capabilities
  • Overhead management and allocation
  • Resource management (labor, equipment, materials) with customizable rates
  • Project sectioning for Work Breakdown Structure (WBS) organization

Advanced Calculation Engine

  • Powerful formula system with line references (L10, L20, etc.)
  • Local variables and global defines for complex calculations
  • Automatic recalculation with circular reference detection
  • Real-time cost updates across all project components

Productivity Features

  • Full undo/redo support for all editing operations
  • Excel import/export for seamless data integration
  • Customizable column management with visibility controls
  • Rich text formatting (bold, italic, underline)
  • Context-sensitive right-click menus
  • Comprehensive keyboard shortcuts

Enterprise Security

  • PBKDF2 password hashing with SHA256 (10,000 iterations)
  • User authentication and project ownership
  • Secure local database storage (SQL Server LocalDB)
  • Comprehensive error handling and logging

Project Templates

  • Reusable project templates for common estimating scenarios
  • Template line items for standardized cost structures
  • Quick project creation from proven templates

Data Organization

  • Status workflow management (Draft, In Review, Approved, Complete)
  • Color-coded highlighting system
  • Advanced filtering and sorting capabilities
  • Custom properties for flexible data tracking

Professional Workflow

  • Project-based organization with client information
  • Automatic timestamp tracking (created/modified dates)
  • Comprehensive logging with Serilog integration
  • Event-driven updates across all project views

How Trinity Works

Three simple steps to transform your cost estimation process

1

Import Project Data

Upload your project files and specifications. Trinity extracts relevant data and creates a structured cost breakdown.

2

Configure & Calculate

Set up cost parameters, labor rates, and carbon emission factors. Review real-time analytics and optimize your budget.

3

Generate Reports

Create detailed reports for stakeholders and export to your preferred format with full carbon tracking.

More tools at your fingertips

Project Templates

Reuse proven cost structures

Data Organization

Filter, sort, and highlight with ease

Enterprise Security

PBKDF2 hashing and user auth

Professional Workflow

Status tracking and audit trails

See Trinity in action

Trinity Direct Costs — line items, quantities, rates, and status pills
Trinity Sell Rate Spreadsheet — rate validation across the project
Trinity Report Builder — section toggles and Excel/PDF/CSV/Word/HTML export
Trinity Summary — KPIs, top cost items, margins, and resource breakdown

Trinity pricing

First-principles estimating for every size of civil and construction business. Per user, per month, +GST.

Most popular

Professional

Solo estimators & small civil contractors

$399 / user / month

+GST · save ~15% with annual billing

  • Full first-principles cost build-ups
  • Parametric quantities & live formula engine
  • Real-time recalculation & analytics
  • Australia-first embodied-carbon tracking
  • Bidirectional Excel import / export
  • Reporting & reusable templates
  • Local database (your machine, your data)
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Team / Business

Estimating teams working together

$499 / user / month

+GST · save ~15% with annual billing

  • Everything in Professional, plus:
  • Shared cloud database
  • Multi-user access
  • Version history
  • Team collaboration
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Enterprise + AI

Multi-office & head contractors

from $699 / user / month · or POA

+GST · tailored to your organisation

  • Everything in Team, plus:
  • AI build-up generation & takeoff
  • Rate intelligence
  • SSO & user management
  • API & integrations
  • Priority support
Contact Sales

All plans include a free trial — no credit card — and a 14-day money-back guarantee on first purchase. Billed in AUD via Stripe. Cancel anytime. Some Team (cloud collaboration) and Enterprise (AI build-ups, rate intelligence) capabilities are rolling out — contact us for current availability.

Ready to estimate smarter?

Start using Trinity today and transform how you manage construction costs and carbon impact.

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— Documentation

TX1 / Trinity User Guide

Every screen, every formula, every workflow — documented section by section. Cost build-up, resources, markup, formulas, carbon tracking and more. Full-text search included.

Open the User Guide
00Getting Started 03Resources 06Markup & Sell Rates 07Formula Engine 09Carbon Emissions 99Appendices