Stop Sketching. Start Validating.

Transform your Excel cable schedule into interactive block diagrams in seconds. Validate topology, catch design errors, and streamline your drafting workflow.

Free up to 200 cables • No Subscriptions • One-Off Project Fees

Interactive Demo

This diagram was generated from a standard cable schedule. Click any cable to view its metadata, drag devices to rearrange the layout, or pan and zoom to explore the topology.

No Data
No cables found in selected sections
Try With Your Own Data

This is exactly what you'll get when you upload your cable schedule

The Visibility Gap: Where Time, Budget, and Quality Disappear

It's hard to validate topology in a spreadsheet. Managing thousands of cable rows without visualization creates a "blind spot" where design errors hide—until they surface as change orders, rework, or schedule delays.

The "Blind" Workflow
Input

2,000-row Excel Schedule

Process

Engineer manually highlights rows → Sketches markups on paper → Sends to CAD team

The Gap

~1-Week Feedback Loop

Outcome

Potential for errors after drawings produced

Cost

$$$ Rework

The CableBlock Workflow
Input

The same Excel Schedule

Process

Upload to CableBlock → Instant Design Validation

The Solution

Feedback Loop in seconds

Outcome

Validated before CAD

Value

Zero Rework

How It Works

Three steps to validate your cable topology before drafting

1

Upload Your Schedule

Export Excel to CSV and upload. Smart column mapping recognizes Source, Destination, and Cable Type automatically.

2

Design Validation

Get an interactive block diagram instantly. Click cables to inspect details and spot errors before CAD.

3

Deliver to Site

Export PDFs for drafters or share a Live Project Link. Contractors can view on tablets—no account needed.

Need a better template?

Download our industry-standard CSV Cable Schedule Template. It comes pre-formatted for automatic block diagram generation.

Built for Validation, Not Just Visualization

CableBlock focuses exclusively on closing the visibility gap in your cable design workflow

Design Validation
Catch design errors, missing connections, and duplicate cables before they become expensive rework.
Smart Column Mapping
Works with your existing Excel template. No reformatting required—just export to CSV and upload.
Interactive Exploration
Click cables to view metadata. Click devices to highlight all connections. Understand relationships instantly.
Data Security
Encrypted in transit and at rest. Never shared with third parties. Built by engineers who understand confidentiality.
Site-Ready Collaboration
Stop printing outdated markups. Send a secure, read-only link to your installation contractors. They can zoom, filter, and trace cables on-site using any tablet or mobile device.
Professional PDF Exports
Export polished PDFs for your drafter and client packages—ready to drop into deliverables without rework.

Trusted by Engineering Teams

"CableBlock cut our cable documentation time in half. Our engineers can now focus on design work instead of manual sketching."

Design Manager

Engineering Consultancy, Sydney

"The visualization feature is a game-changer. We spot errors in minutes instead of hours. ROI achieved in our first project."

Senior Electrical Engineer

Substation Design Firm

"Finally, a tool built for our workflow. No complex setup, just upload and validate. Setup took less than 5 minutes."

Engineering Director

Power Systems Design

Real Results

Metrics from engineering teams using CableBlock

10+ hours

Saved per week per engineer on manual documentation

60% faster

Cable schedule review and validation

Seconds

From Excel upload to validated topology

Frequently Asked Questions

Yes. We do not charge monthly subscriptions. You pay a flat fee per project for 12 months of active editing. This allows you to expense the software cost directly to your project budget (CapEx/Reimbursable) rather than your operating budget.

One Project. One Price. No Monthly Fees.

Expense it directly to your project code. No recurring subscriptions to manage.

Sandbox
Testing & Validation
Free
  • Up to 200 Cables
  • Interactive Web View
Standard Pass
Design Team
$600USD
  • Unlimited Cables
  • 12 Months Active Access
  • Interactive Web View
  • Up to 5 Users
  • PDF Exports
  • Email Support
Best Value
Team Pass
Design & Project Teams, Contractors
$1,000USD
  • Unlimited Cables
  • 12 Months Active Access
  • Interactive Web View
  • PDF Exports
  • Live Shareable Link (Read-Only)
  • Priority Support

All payments processed securely via Stripe. You will receive an instant tax invoice to submit for project reimbursement.

Ready to Close the Visibility Gap?

Stop manually sketching cable schedules for draftsmen. Validate your topology in seconds and deliver clean instructions—right first time.

No credit card required • Free up to 200 cables • One-Off Project Fees