The Masonite International Corporation, Home Depot and Simpson Door Company sell interior bifold doors in standard sizes. Menards builds custom interior bifold doors based on customer-entered measurements.
Masonite customers choose the panel design of their bifold doors by first selecting "Bifold Doors" from the "Help Me Choose an Interior Door" page, then selecting the "View All Bifold Doors" option from the resulting drop-down menu. From there, customers can click on the individual panel design for more information.
To order a custom interior bifold door from Menards, customers enter the width and height of the final opening size of the door to the nearest 1/8 inch. Menards builds flush bifold doors from 18 to 72 inches wide and 36 to 80 7/8 inches tall, and panel doors 24 to 72 inches wide and 75 to 97 inches tall.