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How to tell good trim work from bad

November 2026 · 3 min read · Darius Narvaez

Trim is where corners get cut, literally

Finish carpentry is the most visible work in a house and the easiest to fake for about six months. Caulk and paint hide a lot on handover day. Here is what to look at before you sign anything off.

1. Look down the length of a wall

Crouch at one end of a run of baseboard and sight down it. The top edge should hold one line. Waves mean it was pushed to follow a bowed wall instead of being scribed or shimmed.

2. Check the inside corners

Inside corners should be coped, not mitered. A coped joint stays closed when the house moves through a Minnesota winter; a mitered one opens up by spring and no amount of caulk closes it twice.

3. Look at the reveals

The reveal is the small step where casing sits back from the edge of a door jamb. It should be identical on every door in the house. Inconsistent reveals are the fastest tell that trim was rushed.

4. Open and close every door

A door should latch with a push, not a shove, and stay where you leave it half open. If it swings on its own the jamb is not plumb — a framing problem wearing a finish problem's clothes.

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Based in Crookston, MN

Custom Carpentry Solutions LLC is run out of Crookston and works across Polk County, into East Grand Forks and Grand Forks, and down through the smaller towns south and west.

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