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Simpson Strong-Tie Deck Planner Software™

Plan for Beauty, Design for Strength

As the leader in structural wood connectors, Simpson Strong-Tie is the perfect partner to help you build a strong, beautiful deck that will last for decades. Our new, free Deck Planner Software enables you to design a deck in just a few minutes. With this Web-based software, you don't have to worry about complicated downloads or managing licenses. Just design your deck, print out your permit submittal pages and materials lists, and go.

Simpson Strong-Tie Deck Planner Software is provided with no cost, no obligation.

That stylish, strong deck is just clicks away. Get started today.
Start My New Deck Project I Already Have an Account

For New Users

  • Read the System Requirements and FAQs.
  • For technical support, software issues and bug reports, email simpson-deck@diyonline.com. Questions will be answered within 2 business days.
  • For comments or suggestions for future product enhancements, email deckplannersupport@strongtie.com.
  • Deck Planner Software may take a couple minutes to load the first time you launch it; however, subsequent uses will load much faster. It's worth the wait!


Deck Planner Software helps you easily design a stronger deck by:
  • Enabling the design, size, shape and features of your deck with just a few clicks
  • Highlighting the critical deck connections and recommending the right hardware and available finishes for your design
  • Designing in 3D with live dimensions
  • Providing a glimpse of your material list while designing your deck or allowing you to save/print a full output report

More Deck Planning Resources