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Trade walkthroughs

How to inspect drywall before close

Drywall closes the wall on every trade behind it, so the inspection has two moments: the pre-cover walk while the framing and MEP are still visible, and the board walk once the gypsum is up. This walkthrough covers both — first the last look at what is about to be buried, then the board itself: the right type in the right place, fastened and finished to the level the spec calls for.

For the drywall foreman and the GC's superintendent — running the pre-drywall walk before board, and verifying the hung and finished board before paint.

Step by step

  1. Run the pre-drywall walk first

    Before any board goes up, confirm the electrical, plumbing, HVAC and low-voltage rough-ins are inspected and signed, insulation is in and cleared, and blocking and backing are set. Once the board is on, none of this can be verified without opening it back up.

  2. Verify board type matches the assembly

    Fire-rated board in rated walls, moisture- or mold-resistant board in wet areas, the right thickness for the framing spacing. A standard sheet hung in a rated or wet location is a defect that only shows up when it fails.

  3. Check fastening pattern and framing bearing

    Screws should be at the required spacing at field and edges, set just below the paper without breaking it, and hitting framing. Look for overdriven screws, missed studs, and board edges that land on air instead of backing.

  4. Inspect joints, control joints and rated details

    Butt joints should fall on framing and be staggered; control joints go where the spec and layout require. In rated assemblies, confirm the joint treatment and any required layer count and offset match the tested assembly.

  5. Verify the finish level

    Confirm the taping and finish reach the level of finish the spec calls for in each area — a wall getting gloss paint or critical lighting needs a higher level than a closet. Check for tool marks, ridging, and joints that will telegraph under the finish.

  6. Photograph the pre-cover and the finish

    Capture the open wall at pre-drywall, then the hung and finished board. The pre-cover set is your proof of what is behind the gypsum; the finish set documents the level handed off to paint.

What gets missed

  • Boarding over a rough-in that was never signed off, so a missed inspection is now behind the wall.
  • Standard board hung where the assembly called for fire-rated or moisture-resistant.
  • Overdriven screws that break the paper and lose their hold, or fasteners that missed the stud entirely.
  • Finish level assumed uniform when the spec called for a higher level under critical lighting or gloss paint.
  • Missing blocking for grab bars, casework and TVs, discovered only when someone tries to hang them.

Questions people ask

What is the difference between the pre-drywall walk and the drywall inspection?
The pre-drywall walk is the last look at the rough-ins, insulation and backing before board covers them; the drywall inspection verifies the board itself — type, fastening, joints and finish level — after it is hung.
Why does the drywall finish level matter?
Because a wall finished to a lower level than its area calls for will show every joint and tool mark once the paint and lighting go on, and the fix is to re-finish after the painters have already been through.

Standards behind it

Terms worth knowing

Checklists that make this a one-tap job

Free, field-ready checklists, each with the photo every item needs before it can be submitted.

Pre-drywallPre-drywall inspection checklistOne walk covering structure, MEP rough-in, insulation and blocking.11 items20 photosDrywall Pre-cover· DrywallDrywall pre-cover inspection checklistBoard inspection before taping and finishing conceal fastener defects and damaged panels5 items7 photosDrywall Rough-in· DrywallDrywall rough-in inspection checklistBoard-hanging walk checking fastener pattern, joints and rated assembly layers before taping starts9 items12 photosDrywallDrywall inspection checklistPre-cover signoff, hang, rated assemblies and finish level.12 items23 photosDrywall Final· DrywallDrywall final inspection checklistFinish-level walk checking joints, corners and texture match under critical light before turnover8 items11 photos
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Related guides

Reading the steps is one thing. Proving you walked them is the job.

RTI holds the submit button until every mandatory item is answered and the photos are attached, then chains the record so it can be proven untouched later.

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