Deck and Patio Inspections: Safety, Attachment, and Permits

By David Parks · eXp Realty · The Apollo Group · 2 min read

The Short Answer

Deck inspections focus on safe attachment to the house, structural condition, railings, and signs of rot. A deck that looks fine can still be unsafe if the ledger board is poorly attached.

Deck and Patio Inspections: Safety, Attachment, and Permits
Illustration by David Parks

What to know

Decks are exposed to sun, snow, and moisture, so wood can dry, crack, or rot. Composite decking resists rot but depends on a sound frame underneath.

Key parts to check

Key pointWhat it means
Ledger boardThe beam that connects the deck to the house, with proper bolts and flashing.
Posts and footingsShould be solid and properly supported.
Joists and beamsLook for rot, cracks, and sagging.
Stairs and railingsTypically 36 to 42 inches high depending on code, with secure balusters.
Quick Poll

Have you ever dealt with a deck or patio problem?

Warning signs

Wobbling when you walk, loose railings, soft spots, rusted or missing fasteners, and gaps where the deck meets the house. Decks built without a permit may lack proper construction, so ask for permit records.

Buyer tip

Concrete patios can also crack or tilt toward the house. Sloping flatwork can send water toward the foundation, so note the direction of drainage.

Key Takeaways
  • What to know: Decks are exposed to sun, snow, and moisture, so wood can dry, crack, or rot.
  • Warning signs: Wobbling when you walk, loose railings, soft spots, rusted or missing fasteners, and gaps where the deck meets the house.
  • Buyer tip: Concrete patios can also crack or tilt toward the house.

This article is general information, not legal, tax, financial or inspection advice. Every home and situation is different, so confirm details with a licensed inspector, lender, attorney or tax professional.

David Parks
About David Parks

David is a Greater Denver real estate advisor with eXp Realty and The Apollo Group (Colorado broker license FA100103211). He has closed more than $55 million in volume, earned eXp Icon status in 2025, and holds a 5.0 rating on Zillow from 27 verified reviews.

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