Schedule Final Inspection
Your deck must pass a building department inspection before it can be officially used. The inspector checks structural elements, railings, stairs, and code compliance. Be prepared - most inspections take 15-30 minutes.
Quick Summary
15-30 minutes
Included in permit
24-48 hours
Required
Why the Inspection Matters
A passed final inspection isn't just paperwork - it's certification that your deck is safe and built to code. This protects you legally, maintains your insurance coverage, and prevents problems when selling your home. Unpermitted or uninspected decks can require removal or costly modifications during a home sale.
Don't Skip This Step
An uninspected deck can void your homeowner's insurance if someone is injured. It can also complicate or kill a home sale when the buyer's inspector finds unpermitted work. The inspection is quick and already paid for with your permit fee.
What Inspectors Check
Structural Elements
- Footings: Proper depth below frost line, correct diameter
- Posts: Properly sized, plumb, connected with approved hardware
- Beams: Correct size for span, properly attached to posts
- Joists: Correct size, spacing, joist hangers at ledger
- Ledger: Proper flashing, correct fasteners, attached to rim joist
Railings and Guards
- Height: 36-42 inches from deck surface (varies by code)
- Baluster spacing: Maximum 4 inches (can't pass 4-inch sphere)
- Post connections: Bolted through rim joist, not just screwed
- Strength: Must resist 200 pounds of lateral force
Stairs
- Rise: 7-7.75 inches maximum, consistent throughout
- Run: 10 inches minimum, consistent throughout
- Handrail: 34-38 inches above stair nosing, graspable
- Stringer support: Proper footing at bottom, attached at top
Pre-Inspection Checklist
Do Your Own Walk-Through First
Before calling for inspection, walk through your deck with this checklist. Fix any issues now rather than failing and paying for a re-inspection.
Check Before Calling
- All construction is complete
- Permit card posted and visible
- Approved plans on site
- All fasteners installed and tight
- Ledger flashing visible
Measure and Verify
- Railing height: 36-42"
- Baluster spacing: 4" max
- Stair rise consistent: ±3/8"
- Handrail height: 34-38"
- Deck matches approved plans
How to Schedule
Contact Your Building Department
Call the number on your permit or visit the department's website. Many jurisdictions now offer online scheduling. Have your permit number ready.
Request a Final Deck Inspection
Specify that you need a "final inspection" for a deck permit. They'll typically give you a window (morning or afternoon) rather than an exact time.
Plan to Be Present
While not always required, being present allows you to answer questions, learn about any issues firsthand, and get immediate feedback. Most inspections take 15-30 minutes.
Common Reasons for Failure
Baluster Spacing Too Wide
This is the #1 failure reason. Inspectors often carry a 4-inch sphere to test. If it passes through anywhere, you fail. Check every gap.
Improper Ledger Attachment
Ledger must be lag bolted through the house rim joist, not just siding. Flashing must be visible. This is a structural safety issue.
Inconsistent Stair Rise
All stair rises must be within 3/8 inch of each other. Inconsistent stairs are a tripping hazard. Measure each rise carefully.
Missing Hardware
Joist hangers not fully nailed, post connectors missing bolts, or beam connections not using proper hardware. Every hole in the connector should be filled.
Frequently Asked Questions
What does a deck inspector check?
Inspectors check structural elements (footings, posts, beams, joists, ledger attachment), railings (height, baluster spacing, post connections), stairs (rise/run consistency, handrail), and fasteners. They compare your work to approved plans and local building codes.
How do I schedule a deck inspection?
Contact your local building department by phone or through their online portal. You'll need your permit number. Most jurisdictions require 24-48 hours advance notice. Request a morning or afternoon window and plan to be present.
What happens if my deck fails inspection?
If your deck fails, the inspector will provide a list of corrections needed. Make the required changes and schedule a re-inspection. Minor issues often just need a quick fix. Structural problems may require more work. There's usually a fee for re-inspections.
Do I need a final inspection for a small deck?
If you obtained a permit, you need a final inspection regardless of deck size. Many jurisdictions require permits for decks over 30 inches high or attached to the house. Skipping the final inspection can cause problems when selling your home and may void insurance coverage.