Common Carpentry Mistakes to Avoid

The ten most common mistakes

1. 1
   Designing from photographs without dimensionsA beautiful built-in in a 10ft room may not work in your 8ft room. Every design starts with measuring the actual space — width, height at both ends, depth, and the location of every obstacle.
2. 2
   Choosing material before understanding the applicationSolid wood is not always better than plywood. MDF is not always a compromise. Every material has a correct application and an incorrect one. Match the material to the use, not to the perceived quality.
3. 3
   Ignoring the existing houseWalls are not plumb, floors are not level, and corners are not square. A design that assumes perfect geometry will look wrong when it meets the actual house. Scribing — fitting to the real surface — is what separates built-in from placed.
4. 4
   Moving forward without drawingsA conversation is not a specification. Two people can leave the same conversation imagining different things. Drawings — even rough ones — force both parties to resolve every dimension before fabrication begins.
5. 5
   Sequencing trades incorrectlyCarpentry that happens before painting, electrical that happens after cabinetry, flooring that goes in before trim. The sequence of trades is not negotiable and getting it wrong means doing work twice.
6. 6
   Forgetting the servicesPower, data, lighting, ventilation, plumbing — all need to be roughed in before millwork goes on the wall. The most expensive carpentry mistake is building a beautiful media wall with no power behind the TV.
7. 7
   Under-specifying hardwareA soft-close hinge costs a few dollars more than a standard hinge. A full-extension undermount slide costs more than a side-mount roller. The difference in daily use is enormous, and retrofitting hardware after installation is expensive.
8. 8
   Not planning for accessEvery panel, every door, every hatch that conceals a valve, a junction box or an access panel needs to remain accessible. Building millwork that permanently blocks building services is a code violation in many situations.
9. 9
   Expecting carpentry to solve a layout problemIf the room does not work, the best millwork in the world will not fix it. Built-ins that fight a bad layout just make the layout more expensive to change later.
10. 10
    Not acclimating woodMaterial that goes from a cold truck directly onto a warm wall will move — and it will move after it is installed. Give wood 3–5 days inside the house before cutting and fitting.