Walk the job site
before the inspector does.

Run a structured checklist on your phone. Catch issues, attach photos, keep a record. Verify local amendments with your AHJ.

Start free check

Free to try. No credit card needed.

4 trade checklists·Photo evidence·PDF record

Here's how it works

Pin your job site

Hit "Use my location" or pick your county. We use it as your project location and to organize your report.

Pick your trade

Decking, electrical, plumbing, HVAC — four trade checklists.

Walk through the list

Each item shows a requirement to check on site. Mark Pass, Fail, or N/A. Get a PDF record when you're done.

See it in action

Real app. A real walk-through. 30 seconds.

What you get

Four trade checklists — decking, electrical, plumbing, HVAC

Pass/Fail/N/A check for every item

Measurement prompts with min/max values

PDF record you can save or share

Works on your phone — no laptop needed

Deck code quick reference

The numbers inspectors check first. Drawn from the International Residential Code (IRC) — the baseline most U.S. counties adopt as a starting point. Your county may adopt stricter amendments; confirm current local requirements with your AHJ before building.

Guardrail & Balusters

Guardrail height (min): 36 inIRC R312.1
Baluster gap (max sphere): 4 inIRC R312.1
Top rail load resistance: 200 lbsIRC R312.1

Stairs

Riser height (max): 7¾ inIRC R311.7.5
Tread depth (min): 10 inIRC R311.7.5
Riser variation (max): ⅜ inIRC R311.7.5

Joist & Beam

Joist spacing (standard): 16 in o.c.IRC R507.5
Joist hangers required: At beam bearingIRC R507.4
Beam sized to joist span: Per IRC tablesIRC R507.5

Ledger Board

Fastener: ½ in lag/through-boltIRC R507.2.1
Penetration into solid wood (min): 3 inIRC R507.2.1
Flashing: Behind siding, over top edgeIRC R507.2.1

Footing

Hole depth: Below local frost lineIRC R507.3
Diameter (single-span, min): 10 inIRC R507.3
Bearing soil: UndisturbedIRC R507.3

Decking Boards

Fasteners per joist (min): 2IRC R507.9
Board gap for drainage: ⅛ – ¼ inIRC R507.9

Full reference page·Checklist for your county

Built for the job site.

A self-guided walk-through tool. Always verify local amendments and code requirements with your local Authority Having Jurisdiction (AHJ).

Catch issues before the inspector arrives.

Walk the job site now. It takes a few minutes.

Start free check

Walk the job sitebefore the inspector does.

Here's how it works

Pin your job site

Pick your trade

Walk through the list

See it in action

What you get

Deck code quick reference

Guardrail & Balusters

Stairs

Joist & Beam

Ledger Board

Footing

Decking Boards

Catch issues before the inspector arrives.

Walk the job sitebefore the inspector does.

Here's how it works

Pin your job site

Pick your trade

Walk through the list

See it in action

What you get

Deck code quick reference

Guardrail & Balusters

Stairs

Joist & Beam

Ledger Board

Footing

Decking Boards

Catch issues before the inspector arrives.

Walk the job site
before the inspector does.

Walk the job site
before the inspector does.