Why finish work is where skill shows

Framing is forgiving because it gets covered. Finish carpentry is the opposite: it's permanently visible, and it has to reconcile factory-straight material with a house that isn't straight. Walls bow, floors slope, corners aren't 90 degrees, especially in older homes. Making trim look tight against imperfect surfaces is the actual skill, and it's called scribing.

A walkthrough checklist

Baseboards and trim

  • Look along the length of a wall at a low angle. Does the baseboard follow the floor without gaps opening up?
  • Check inside corners. Are they coped, meaning one piece shaped to fit the profile of the other, rather than just two mitres jammed together?
  • Check outside corners for gaps at the point of the mitre.
  • Look at joints in long runs. A scarf joint on a stud is right; a butt joint in the middle of a bay isn't.
  • Are nail holes filled, sanded, and painted, not just filled?

Caulking and paint lines

  • Is caulk applied at the top of the baseboard where it meets the wall, and at the bottom where it meets the floor if the flooring type calls for it?
  • Are caulk lines even in width and straight, without smears on the wall above?
  • Is the paint line between wall and trim sharp?

Doors

  • Does the door swing without pushing or catching, and stay where you leave it rather than drifting?
  • Is the gap around the door consistent on all sides?
  • Does the latch engage without lifting or leaning on the door?
  • Is the casing tight to the wall on both sides, with no gaps at the top corners?

Stairs

  • Are riser heights consistent? Inconsistent risers are both a trip hazard and a code issue.
  • Are treads solid with no flex or squeak underfoot?
  • Is the skirt board tight to each tread and riser?
  • Is the handrail solid when you pull on it sideways, not just downward?

Cabinets and built-ins

  • Do door and drawer fronts line up with each other, with even gaps?
  • Do doors sit flush when closed, not proud at one corner?
  • Is filler and scribe work at the wall clean, or is there a visible gap?
  • Is the toe kick straight and does it meet the flooring cleanly?

Do the walkthrough in daylight, and bring a flashlight. Hold the light flat against the wall so the beam rakes across the surface. Raking light shows every wave, gap, and unsanded patch that overhead lighting hides. Contractors use this method themselves.

What's reasonable and what isn't

Some things are the nature of the material and the house. Solid wood moves with seasonal humidity, so a hairline seam opening slightly in winter is normal. A house that isn't square means trim has to be cut to fit rather than to theory. What isn't reasonable: gaps you can see from standing height, corners that don't meet, unfilled nail holes, caulk smeared on painted walls, or doors that don't latch.

Timing the conversation

Raise finish issues before final payment, and raise them as a specific list rather than a general impression. Most are quick fixes for someone with the tools already on site, and much harder to get resolved after the crew has moved on to the next job.

Common questions

What is the best way to inspect finish carpentry?

Do it in daylight with a flashlight held flat against the wall so the beam rakes across the surface. Raking light reveals waves, gaps, and unsanded filler that overhead lighting conceals. Check baseboards along their length at a low angle, inside corners for coping, and doors for consistent gaps and proper latching.

Should baseboards be caulked?

Caulk at the top where the baseboard meets the wall gives a clean paint line and closes the gap left by an uneven wall. Whether the bottom is caulked depends on the flooring type. Caulk lines should be even in width and free of smears on the wall above.

Is a small gap in trim normal?

Solid wood moves with seasonal humidity, so a hairline seam that opens slightly in dry winter months is normal. Gaps visible from standing height, corners that do not meet, and unfilled nail holes are not, and are worth raising as a specific list before final payment.

This guide is general information for Metro Vancouver and the Fraser Valley, not legal advice or a substitute for your municipality's building department. Requirements vary by city and by project.