Blinds Size Chart: Width and Height Ranges by Blind and Shade Type

Window blinds do not have one standard size, because custom blinds are made to the window. On the Value Blinds order forms in the chart below, widths run from as narrow as 12 inches to as wide as 117 inches, and heights from 14 inches to 117 inches, depending on the blind type. Every size is entered to the nearest 1/8 inch.

Table of contents

1. Blinds Size Chart by Type

2. Cordless Size Limits

3. Are There Standard Blind Sizes?

4. What Size Blinds Do I Need?

5. What Are the Fractions on a Blind Order Form?

6. How Much Window Depth Do Blinds Need?

7. Frequently Asked Questions

Blinds Size Chart by Type

These are the width and height ranges on these Value Blinds order forms at the time of this update:

Each range shows the whole-inch sizes on the order form. Every form also takes eighths of an inch, from 1/8 to 7/8.

The light filtering cellular shade has the smallest maximum width on the chart, 59 inches. A wider window needs two shades side by side or a different style.

Cordless Size Limits

On several products, the cordless lift has a smaller size limit than the order form range:

If your window is larger than the cordless limit, check the other lift options on that product page before you order. Our guide to cordless blinds and what they cost  compares the cordless styles.

 

Are There Standard Blind Sizes?

Ready-made blinds are sold in a set of preset widths, and you pick the nearest one. Custom blinds skip that step: the blind is made from the measurements you enter, so it does not have to match any standard width.

That is why this chart shows ranges, not a list of fixed sizes. Any width and height inside the range for your blind type can be ordered, down to the eighth of an inch.

What Size Blinds Do I Need?

The size you enter depends on how the blind will hang:

• Inside mount (inside the window frame): enter the exact size of the window opening, not the size of the blind. Our factory makes a small deduction from the width so the blind fits inside the frame. Do not subtract anything yourself, or the deduction is taken twice.

• Outside mount (on the wall or trim above the window): enter the exact size you want the finished blind to be, including any overlap past the frame. Our factory makes the blind at exactly that size.

To get the numbers, measure the width at the top, middle, and bottom of the opening, and the height on the left, center, and right. For an inside mount, use the smallest width and the smallest height. Our step-by-step guide to measuring windows for blinds  covers each measurement in detail.

Sizing vertical blinds for a sliding door? See our vertical blinds size guide.

What Are the Fractions on a Blind Order Form?

Blind sizes are written in inches and eighths of an inch. On our order forms, you pick the whole inches first, then a fraction from 0 to 7/8. A width of 35 and 3/8 inches, for example, is entered as 35 in the inches box and 3/8 in the fraction box.

Record each measurement to the nearest 1/8 inch. Rounding to the nearest whole inch can leave an inside mount blind too wide to fit, or an outside mount blind too narrow to cover the frame.

How Much Window Depth Do Blinds Need?

An inside mount blind needs enough depth in the window frame for the headrail. These are the minimum depths listed on our product pages:

If your frame is shallower, choose outside mount.

Rather not measure yourself? We offer professional measuring and installation across the U.S. through our partner, National Blinds Installation.

Frequently Asked Questions

What are standard blind sizes?

Custom blinds have no single standard size, because they are made to the window. On the Value Blinds order forms in our size chart, widths range from 12 to 117 inches and heights from 14 to 117 inches, depending on the blind type.

What is the widest blind I can order?

Of the blinds in our size chart, Value Blinds sheer-fabric vertical blinds go up to 117 inches wide. Roller and roman shades go up to 109 inches, and faux wood, bamboo, and aluminum blinds up to 105 inches.

What does the fraction mean on a blind size?

It is the extra eighths of an inch after the whole inches. Blind sizes are measured to the nearest 1/8 inch, so 35 3/8 inches means 35 inches plus 3/8 of an inch.

Do I deduct anything from my measurements for an inside mount?

No. On a Value Blinds order, enter the exact size of the opening. The factory makes a small deduction from the width.

How big can cordless blinds be?

On the Value Blinds product pages in our size chart, cordless roller shades go up to 98 by 98 inches, and cordless zebra, solar, faux wood, bamboo, and aluminum blinds up to 77 inches wide by 94 inches high.