What is the difference between millwork and casework?

Millwork refers to project-specific architectural woodwork fabricated to suit a particular space, while casework generally describes standardized cabinet-type units produced in repeatable sizes and configurations. Both are shop-fabricated, but they differ in the level of customization and coordination required.

Millwork often includes wall panelling, trims, feature elements, and one-off built-ins that must align closely with site conditions and surrounding construction. Casework is commonly used for kitchens, laboratories, offices, or storage where modular layouts and consistent dimensions are practical.

Many projects use a combination of both, depending on design intent, budget, and flexibility requirements.