You can buy replacement cupboard doors from , big-box home improvement stores , or flat-pack furniture retailers like IKEA. Specialized online retailers are often the best choice for custom sizes, while stores like IKEA provide affordable, ready-to-go options for standard frames. Online Custom Manufacturers

These retailers specialize in built-to-order doors, allowing you to specify exact dimensions, wood species, and finishes.

: Known for popular styles like the Shaker Cabinet Door (approx. $41) and the Covington Raised Panel Cabinet Door (approx. $50). They offer free shipping on orders over $139 and provide various pre-finishing options like white primer or satin varnish.

If you prefer to see products in person or need standard sizes quickly, these retailers are reliable options.

: A highly recommended source for high-quality, custom "real wood" doors. They specialize in "full overlay" refacing, which can give older cabinets a modern, flush look.

: Provides a comprehensive selection of replacement doors for kitchens, baths, and even garages. They offer free shipping on all orders and styles ranging from Arched Raised Panel ($91.84) to MDF Shaker ($20.02).