What counts as an AI takeoff credit?

One credit equals one page of drawings processed by AI. Multi-page PDFs use one credit per page. Manual measurements don't consume credits.

What drawing formats are supported?

Calio supports PDF, PNG, JPG, TIFF, DWG (via conversion), and IFC/BIM models.

All documents are encrypted at rest (AES-256) and in transit (TLS 1.3). Enterprise plans offer dedicated tenancy and on-premise deployment. SOC 2 Type II compliant.

Can I integrate with Aconex or Procore?

Enterprise plans include native integrations with Aconex, Procore, Autodesk Construction Cloud, and BIM 360. We pull transmittals automatically and push completed BOQs back. Custom webhooks are available on all plans.

Now in Beta — AI-Powered Takeoff

Constructiontakeoff
redefined by AI

Upload drawings, extract quantities in seconds, and generate trade-ready BOQs — all powered by AI.

Start Free TrialSee How It Works

Join 0+ construction teams·No credit card required

Trusted by estimators at 60+ leading construction firms

Multiplex

Lendlease

Probuild

Built

Roberts Co

Hansen Yuncken

Hutchinson

ADCO

CPB

Watpac

John Holland

Mirvac

Downer

Laing O'Rourke

BMD Group

Icon Co

Now in Beta — AI-Powered Takeoff

Constructiontakeoff
redefined by AI

Upload drawings, extract quantities in seconds, and generate trade-ready BOQs — all powered by AI.

Start Free TrialSee How It Works

Join 0+ construction teams·No credit card required

Trusted by estimators at 60+ leading construction firms

Multiplex

Lendlease

Probuild

Built

Roberts Co

Hansen Yuncken

Hutchinson

ADCO

CPB

Watpac

John Holland

Mirvac

Downer

Laing O'Rourke

BMD Group

Icon Co

How your drawings become BOQs

Step 1 of 4

Drag and drop your construction drawings in any format. Calio auto-detects scale, orientation, and sheet boundaries for multi-page sets.

Features

40+ features. One platform.

FromintelligentdrawingtoolstoAI-poweredtakeoffs,Caliocoverseverystageofconstructionprojectdelivery—inoneplatform.

Intelligent Drawing Viewer

Navigate complex construction drawings with tools built for the job. Compare revisions side-by-side, annotate with precision markup, toggle layers, calibrate scales, and use the magic wand to instantly select regions.

Drawing Comparison

Side-by-side revision overlay with change highlighting

Markup Annotations

Precision markup tools with clouds, arrows, and text

Multi-Layer Toggle

Show or hide drawing layers independently

Scale Calibration

Auto-detect and normalize scales across sheets

Magic Wand

Instant region selection by color or boundary

Documents6 files · 22.9 MB

Storage

22.9 / 50 MB

100%

6 documents ·3 transmittals

6 documents · 3 foldersLast sync: 2m ago

Smart Viewer

Documents6 files · 22.9 MB

Storage

22.9 / 50 MB

100%

6 documents ·3 transmittals

6 documents · 3 foldersLast sync: 2m ago

Drawing Comparison

Markup Annotations

Multi-Layer Toggle

Scale Calibration

Magic Wand

Construction Admin

Site Operations

Project Mgmt

AI-Powered

Collaboration

40+ features across 6 core modules — and growing every sprint

How It Works

From drawings to BOQ in 3 steps

Notrainingrequired.Uploadandgo.

Upload your drawings

Drag and drop PDFs, DWGs, or IFC models. Batch upload entire transmittals at once.

Formats

PDF, DWG, IFC, PNG

Drop drawings here

ARC-GA-0201.pdf1.2 MB

PDF

STR-DWG-0301.dwg2.0 MB

DWG

HYD-GA-0401.pdf2.8 MB

PDF

MEP-MOD-0101.ifc3.6 MB

IFC

AI extracts quantities

Measures areas, counts items, and detects scales automatically.

Accuracy

94-98%

Speed

~30s per sheet

Export & collaborate

Review BOQs with your team, then export to Excel, CSV, or JSON.

Export

Excel, CSV, JSON

Upload your drawings

Drag and drop PDFs, DWGs, or IFC models. Batch upload entire transmittals at once.

Formats

PDF, DWG, IFC, PNG

Drop drawings here

ARC-GA-0201.pdf1.2 MB

PDF

STR-DWG-0301.dwg2.0 MB

DWG

HYD-GA-0401.pdf2.8 MB

PDF

MEP-MOD-0101.ifc3.6 MB

IFC

AI extracts quantities

Measures areas, counts items, and detects scales automatically.

Accuracy

94-98%

Speed

~30s per sheet

Export & collaborate

Review BOQs with your team, then export to Excel, CSV, or JSON.

Export

Excel, CSV, JSON

Faster than manual takeoff

Industry avg: 3x with legacy tools

+2x vs last quarter

AI accuracy on area detection

Industry avg: 78% with manual QA

+3% vs last month

Drawing sheets processed weekly

vs ~200 sheets/week manually

+400 vs last month

Average cost savings on bids

Industry avg: 8% with spreadsheets

+5% vs last quarter

Faster than manual takeoff

Industry avg: 3x with legacy tools

+2x vs last quarter

AI accuracy on area detection

Industry avg: 78% with manual QA

+3% vs last month

Drawing sheets processed weekly

vs ~200 sheets/week manually

+400 vs last month

Average cost savings on bids

Industry avg: 8% with spreadsheets

+5% vs last quarter

Developer API

Build on top of Calio

IntegrateAI-poweredtakeoffintoyourexistingestimatingworkflowswithourTypeScriptSDK.PythonSDKcomingsoon.

TypeScript SDK

RESTful API with TypeScript SDK
Webhook events for async processing
Transmittal & BOQ export endpoints
Revision tracking — diff any two revs
99.9% uptime SLA on Enterprise

npm install @calio/sdk

View API docs

Endpoints

<200ms

Avg latency

v2.1

Current

1K/min

Rate limit

extract-boq.ts

TS 5.3

1import { Calio } from '@calio/sdk'
2
3const calio = new Calio({ apiKey: process.env.CALIO_API_KEY })
4
5// Upload & extract in one call
6const takeoff = await calio.takeoff.extract({
7  drawing: 'ARC-GA-0201.pdf',
8  trades: ['STR', 'ARC', 'HYD'],
9  revision: 'C',
10  options: {
11    scaleDetection: true,
12    confidenceThreshold: 0.85,
13  }
14})
15
16// Generate BOQ from extraction
17const boq = await calio.boq.generate({
18  takeoffId: takeoff.id,
19  format: 'structured',
20  includeRates: true,
21})
22
23console.log(boq.summary)
24// → { items: 847, trades: 3, totalValue: '$142,680' }

Testimonials

Trusted by Australia's top builders

4.9/5 from 200+ reviews

“We cut our takeoff time from 3 days to 4 hours on a 200-unit residential project. The AI picked up measurements that our junior estimators missed entirely.”

James Chen

Senior Estimator · Atlas Construction

Pricing

Simple, transparent pricing

Startfree.Scaleasyourteamgrows.Nohiddenfees.

MonthlyAnnualSave 20%· 14-day free trial

Starter

$49/month

For individual estimators and small projects

50 AI takeoff credits/month
Unlimited document uploads
BOQ generation & Excel export
Scale detection across sheets
Ask Calio — 100 queries/month
Email support

Start Free Trial

Pro

$149/month

For estimating teams who need speed, accuracy, and collaboration.

Unlimited AI takeoff credits
Real-time collaboration (up to 10 users)
BIM/IFC viewer
Ask Calio — unlimited queries
Transmittal register + workflows
Project Monitor dashboard
Cost tracker with AI alerts
Priority support

Start Free Trial

Enterprise

Custom

For large organisations with complex multi-project requirements

Everything in Pro
Unlimited team members
Automated transmittal workflows
SSO & advanced permissions
Custom integrations (Aconex, Procore, ACC)
Dedicated account manager
99.9% uptime SLA
On-premise or private cloud deployment

Contact Sales

SOC 2 Type II

AES-256 Encryption

99.9% Uptime SLA

Compare all features in detail

Frequently asked questions

Get Started

Stop estimating manually

Join1,200+constructionteamsalreadyusingCaliotowinmorebids,fasterandwithhigheraccuracy.

Limited beta — 47 spots remaining

Or start your free trial|Book a Demo

No credit card required14-day free trialCancel anytime

Trusted by leading builders

“Calio cut our takeoff time by 80%. We now bid on twice as many projects.”— Project Manager, Summit Build Group

Constructiontakeoffredefined by AI

Constructiontakeoffredefined by AI

Intelligent Drawing Viewer

Upload your drawings

AI extracts quantities

Export & collaborate

Upload your drawings

AI extracts quantities

Export & collaborate

Build on top of Calio

TypeScript SDK

Starter

Pro

Enterprise

Frequently asked questions

Stop estimating manually

Intelligent Drawing Viewer

Upload your drawings

AI extracts quantities

Export & collaborate

Upload your drawings

AI extracts quantities

Export & collaborate

Build on top of Calio

TypeScript SDK

Starter

Pro

Enterprise

Frequently asked questions

Stop estimating manually

Constructiontakeoff
redefined by AI

Constructiontakeoff
redefined by AI