Deck Engineering for Permit Approval

Many homeowners begin building a deck—then the building department suddenly stops the project and requires structural engineering. You’re not alone. Decks seem simple, but they support real loads, and building officials need engineered documentation to ensure safety.

That’s where we come in.

Why Your Deck Needs an Engineer

Building departments typically require engineering when:

• The deck is more than 30 inches above grade
• The deck attaches to the house
• The deck supports a roof or covered structure
• The deck is built on sloped or unstable soil
• The span lengths exceed basic prescriptive code tables

You don’t have to figure any of this out yourself — we handle everything the permit office needs.

What We Provide

You get a complete, permit-ready engineering package:

• Structural calculations
• Footing sizes and post spacing
• Beam and joist sizing
• Ledger connection details
• Guardrail and stair engineering (if needed)
• Stamped drawings for submission

Fast, accurate, and accepted by building departments across Oregon and Washington.

How the Process Works

1. Send us your basic deck sketch or photos
2. We confirm details and requirements
3. We prepare stamped structural plans
4. You submit them for permit approval

It’s fast, straightforward, and predictable.

Need Your Deck Plans Approved?

Let’s get your deck project moving again.

Contact Ogren Engineering 

FAQ — Deck Engineering