Custom doors are built specifically for your opening, style preferences, and functional needs. Standard doors come in predetermined sizes and designs that may require compromising on exactly what you want.With custom doors, you choose everything: dimensions, materials, finishes, hardware, glass options, and decorative elements. Standard doors limit you to whatever happens to be available in your size.The installation process is also different. Custom doors are measured and fitted precisely, while standard doors often require adjusting your opening to fit the door.