how to measure for accordion doors

How to Measure for Accordion Doors: A Step-by-Step Guide

By Rachel GarciaJanuary 16, 2026

Accordions doors, with their space-saving design and sleek aesthetics, have become a popular choice for homes and businesses alike. But before you can install or replace these doors, you need to know how to measure for accordion doors accurately. This guide will walk you through the process, ensuring a perfect fit and a professional finish.

Measuring for accordion doors might seem daunting at first, but with the right steps and a bit of patience, you'll have the perfect dimensions in no time. Let's dive into the process, breaking it down into manageable sections.

Understanding Accordion Door Sizes

Before you start measuring, it's crucial to understand that accordion doors come in standard sizes, typically ranging from 24 to 84 inches in width and 8 to 10 feet in height. However, custom sizes are also available to fit your specific needs.

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When measuring, you'll need to consider both the width and height of the door opening, as well as the headroom and side clearance. Let's break down these measurements in detail.

Measuring the Door Opening Width

Start by measuring the width of the door opening from one jamb to the other. Use a tape measure and ensure it's level to get an accurate reading. If the opening is not a standard size, you may need to order a custom accordion door.

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Remember to account for any trim or molding that will be added around the door. Subtract the width of the trim from both sides of the opening to ensure the door fits snugly within the frame.

Measuring the Door Opening Height

Next, measure the height of the door opening from the floor to the top of the jamb. Again, ensure your tape measure is level for an accurate reading. Most accordion doors are 80 inches (6 feet 8 inches) tall, but you can find taller or shorter options depending on your needs.

If your door opening is taller than the standard height, you may need to order an extension track to accommodate the additional height. Conversely, if the opening is shorter, you can typically adjust the door's height during installation.

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Measuring for Headroom and Side Clearance

In addition to the door opening dimensions, you'll need to consider the headroom and side clearance required for the door to function properly.

Headroom refers to the vertical space above the door opening. Accordion doors typically require a minimum of 9 inches of headroom, but more is recommended for easier operation and to accommodate taller individuals.

Measuring for Headroom

To measure for headroom, start at the top of the door opening and measure up to the ceiling or any obstruction above. Ensure there are no pipes, wires, or other obstructions that could interfere with the door's operation.

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If you're installing the door in a new opening, you can often adjust the headroom by raising or lowering the header. However, if you're replacing an existing door, you may be limited by the existing structure.

Measuring for Side Clearance

Side clearance refers to the space on either side of the door opening that the door will need to fold into when opened. Accordion doors typically require a minimum of 12 inches of side clearance on each side, but more is recommended for easier operation and to accommodate wider door panels.

To measure for side clearance, start at the edge of the door opening and measure out to any walls, furniture, or other obstructions. Ensure there are no pipes, wires, or other obstructions that could interfere with the door's operation.

If you're installing the door in a new opening, you can often adjust the side clearance by moving the jambs or extending the wall. However, if you're replacing an existing door, you may be limited by the existing structure.

With these measurements in hand, you're ready to order your accordion door. Always double-check your measurements and consult with the manufacturer or a professional installer if you're unsure about any aspect of the process. A well-measured and properly installed accordion door will provide years of trouble-free service and enhance the look and functionality of your space.