Trim, baseboards and millwork

Why it matters

Trim is the cheapest way to tell the difference between a house that was finished and a house that was finished. It is also, in the Casaroo exemplar set, one of the strongest genuine-premium signals we have: custom millwork appears in five of the six verified premium anchors, alongside slab stone and pro appliances. That is not a coincidence. Millwork is slow, skilled, and impossible to fake, which is exactly why it correlates with homes that actually sold at the top of their comps. It is also a 100+ year item per InterNACHI, unlike almost everything else in this library. Custom millwork, stair parts and pre-built stairs simply do not wear out. When you pay for millwork you are buying a permanent part of the house, which is why it prices like one. The inverse is the tell that matters most to a buyer: thin trim beside expensive finishes is a lie being told badly. A two-and-a-half inch builder baseboard next to a waterfall quartz island means the renovation stopped at the camera's edge.

How to spot it

Value tells: 2.5 inch flat or colonial baseboard, no casing at all on some openings, drywall returns instead of window casing, obvious caulk filling gaps at the joints, and trim that stops where a room stops being photogenic. Mid tells: 4 to 5 inch baseboard, consistent casing, painted crisply. Premium tells: tall baseboards, real crown, wainscoting or panelled walls, coffered ceilings, built-in cabinetry, and mitred joints that are cut rather than caulked.

What it costs

$5.70 to $9 per linear foot for standard baseboard and casing, supplied and installed. A house has a lot of linear feet, so this adds up quietly: it is the definition of individually cheap, collectively five figures. Custom millwork is not a per-foot product and is quoted per job.

What to do

Monitor. Price the rooms you will actually change, by the linear foot. Use it as a small lever, not a reason to walk.