You’ll need to budget from $100 per square foot for bi-fold doors with an aluminum frame, and $70 per square foot for sliding doors.

Bear in mind that for both sliding and bi-fold doors, the frame material and its dimensions will influence the cost. As a rule, Tarza offers the least expensive option and aluminum the most.

Panel sizes also affect the final cost of your selection, with larger sizes more expensive. You might want to factor in whether the doors have integrated blinds, or if you’re going to buy a window treatment separately for use in the evening. If privacy is an issue, consider integrated Teza Bifold Doors that sit within each glazed unit and are manually or remotely operated.