Constructor beta with Modbus

Schools, we now have Remote Learning Options for the Constructor 16 – School/Student Information

Constructor 16 now available. Take a look at the Constructor 16 – Free Trial.

Did you know you can get a Constructor 16 upgrade for $199 (Version 15 users)
or $299 (Version 11 and 12 users).

A Residential Wire Pro 5 upgrade is only $149.

Order Online Today or Call 1-800-680-7638 or 1-406-293-4977 for more information.

Constructor

Create, Test and Print Electrical Ladder Diagrams

Buy Constructor 16 Info Constructor 16
Residential Wire Pro

Create Residential Electrical Floor-plans Quickly

Buy Residential Wire Pro 5 Info RWP 5
Other Products

Learn about our other products

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Product Support

Help for installing your software, using your software, installing patches or upgrades, or technical support for all our products is provided through our support section. If you would like to speak directly to a Technical Support Representative, please call 1-406-293-3616. We are here to assist you between 8:00am - 4:15pm MST (M-F).

Support

We now have Remote Access Constructor Licenses for schools

Train your students remotely. See our School/Student page for more information or give us a call.

We've released Our Constructor 16.0 Electrical Ladder Diagram Software

Check out the latest features and improvements!

Constructor 16.0

Over 31 Years and Still Going Strong.

We've manufactured and sold quality electrical design and training software for over 31 years. Thank you for your support, ideas and suggestions over the years.

Thanks,

Kevin Christensen
VP CMH Software

Contact Us

Buy Now

Order online or call us at 1-800-680-7638 or 1-406-293-4977 for more information.

Buy Constructor Buy Residential Wire Pro See All Products

Download Trial Versions

Here is a quick link to our download page where you can download free trials, demos and PDF brochures.

Download Now

Monthly Specials for August 2025

Please check back every month for money saving specials on our software. These special monthly sales are for end users only - no sales to distributors. School Instructors and Students: Please see our school discount page for academic discounts.

Upgrade your Constructor version 15 to version 16 for only $199

Upgrade your Constructor version 14 to version 16 for only $249

Upgrade your Constructor version 13 to version 16 for only $299

Upgrade your Constructor version 12 to version 16 for only $349

New Residential Wire Pro 5 for only $299 or upgrade from Residential Wire Pro 4 for only $149

Commonly Requested Information

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