What does this exterior decking final checklist cover?

14 items across 5 sections, covering decking surface, drainage and the building edge, guards and railings, stairs, and more. Each item spells out what the person walking the job is actually looking for, not just a box to tick.

Who should run this inspection?

The deck crew lead with the GC's superintendent, walking the finished deck before the owner's walk and daily use.

When in the schedule should this walk happen?

After decking, railings and stairs are complete, before turnover and before the deck sees foot traffic.

Why do these items ask for a photo?

5 of the 14 items call for photo evidence, 5 photos in all. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.

What most often fails an exterior decking final inspection?

Guard and railing posts lag-screwed to the rim with no blocking or tension tie, so the guard flexes when someone leans on it. Baluster spacing run wide in a bay so a gap opens past the allowable spacing on a finished guard. Decking gaps run tight or inconsistent so composite boards buckle in heat and water sits instead of draining through.

Can I use this checklist in RTI?

Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper evident audit trail.

Free checklist

Exterior decking

Exterior decking final inspection checklist

Exterior decking final inspection is where the punch list is either short or expensive. This checklist walks the finished work the way an owner or AHJ will see it: devices on, systems running, everything labeled. Each item gets the photo that closes it instead of reopening it. Work is commonly verified against the applicable building code, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.

Start free with this checklist Download as PDF

The checklist

Every item, and the photo evidence it needs

The photo count on each row is what RTI would require before the item can be submitted. Work the list here and watch the gate hold, or load it into RTI and let it enforce the real thing.

Decking surface

Boards fastened flat with consistent gaps
Deck boards fastened per the product with even gaps for drainage and movement, no cupped, proud or loose boards, ends supported.
Board fasteners on the pattern the decking maker lists
Hidden clips or face screws at every joist on the manufacturer's pattern, screws set to the depth the product calls for with no mushroomed or split faces.
Fascia and border boards fastened with room to move
Fascia, picture-frame and breaker boards fastened to blocking on the maker's pattern, gapped at splices and corners for the day's temperature.
Underside clearance and airflow per the decking maker
Open airflow under the boards with the clearance to grade, roof or slab the decking manufacturer requires; skirting vented where it is installed.

Drainage and the building edge

Water on the surface runs off away from the building
Water hosed on the deck drains through the gaps or off the outer edge, with no ponding at the door threshold or along the wall.
Step from the door threshold to the deck matches the drawings
Height from the interior floor or sill down to the finished deck surface matches the drawings, with the sill flashing still able to drain out over the deck.
No photo

Guards and railings

Guards and railings secure, to height, with correct spacing
Guard height and baluster spacing consistent to the requirement, posts anchored so the guard does not flex under a firm push, top rail continuous.
No photo
Guard height taken from built-in benches and planters
Where benches, planters or steps are built into the deck beside a guard, guard height is measured from their top as the drawings require, not from the boards.
No photo
Decking notched around guard posts with a drainage gap
Boards cut neatly around each guard and stair post with the gap the decking maker lists, no board bearing on the post or trapping water against it.
No photo
Manufactured guard system matches its evaluation report
Where a manufactured guard or railing kit is used, its evaluation report or load test is on file and the post spacing and mounting match what it covers.
No photo

Stairs

Stair rise, run and handrail consistent and secure
Even rise and run, stringers fastened, treads solid, handrail continuous and graspable at the required height, no wobble.
No photo
Stair base lands on the pad or footing the drawings show
Where the deck has stairs, stringers bear on the landing pad or footing detailed rather than soil or pavers, and the landing drains away from the stair.
No photo

Deck closeout records

AHJ deck inspection result logged with any open items
The AHJ's final or framing inspection result for the deck is recorded with the inspector's notes, and any correction items are tracked to closed.
No photo
Decking care, snow removal and warranty data collected
The decking maker's cleaning, snow and ice removal guidance and warranty registration for the installed product logged for the turnover package.
No photo

What usually sends this back

The failures are almost always the evidence, not the work

Guard and railing posts lag-screwed to the rim with no blocking or tension tie, so the guard flexes when someone leans on it.
Baluster spacing run wide in a bay so a gap opens past the allowable spacing on a finished guard.
Decking gaps run tight or inconsistent so composite boards buckle in heat and water sits instead of draining through.

Common questions

6 answers

What does this exterior decking final checklist cover?: 14 items across 5 sections, covering decking surface, drainage and the building edge, guards and railings, stairs, and more. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
Who should run this inspection?: The deck crew lead with the GC's superintendent, walking the finished deck before the owner's walk and daily use.
When in the schedule should this walk happen?: After decking, railings and stairs are complete, before turnover and before the deck sees foot traffic.
Why do these items ask for a photo?: 5 of the 14 items call for photo evidence, 5 photos in all. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
What most often fails an exterior decking final inspection?: Guard and railing posts lag-screwed to the rim with no blocking or tension tie, so the guard flexes when someone leans on it. Baluster spacing run wide in a bay so a gap opens past the allowable spacing on a finished guard. Decking gaps run tight or inconsistent so composite boards buckle in heat and water sits instead of draining through.
Can I use this checklist in RTI?: Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper evident audit trail.

Related checklists

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Run it with the Photo Gate

A checklist nobody can submit half-finished

Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 5 required photos exist. Approved walks roll into a branded turnover package with a tamper evident record behind every line.