Help with Curtain Sizes

First you should know that Window Toppers supplies you with excellent size information on each product page that states the window width each item will accommodate as well as other helpful sizing information. We provide this in the main product description and added information under the Measurements & Size Help tab, located next to the description tab on the page.

If you are unfamiliar with terms used in this guide, please view our Guide To Window Treatment Terminology for help with understanding any of the terms used in describing curtains and how they are manufactured.

What size curtains do I need - is probably the most often asked question we hear. We understand this and have many many years of experience helping our customers figure out what size curtains or window treatments they need for their homes. Window Toppers is going to provide you with some great information to help with buying curtains.

Measuring The Length Needed:

*Important Note about Rod Pocket Size and measuring lengths

  • Curtains and window treatments made with a 1 1/2 inch rod pocket are measured overall. Length is measured from the top edge of the curtain to the bottom edge (longest point) of the curtain. Unless otherwise noted on product description.
  • Window Treatments made with a 3 inch rod pocket are measured from the top stitch line of the rod pocket to the bottom edge (longest point) of the curtain. Unless otherwise noted on product description.

Pinch Pleated Drapes & Patio Door Drapery Panels (have no rod pocket) are measured overall. Length is measured from the top edge of the drape to the bottom edge (longest point) of the drapery.

How to measure your window for length needed.

With your empty curtain rod hanging on your window, measure from the top of the curtain rod down to the top edge of the window sill.

Example; if this area measures 63", you would need to order a 63" long curtain if you desired it to hang down this long.

Curtains are made to fit these common window lengths, 24", 30", 36", 38", 45", 54", 63", 72", 81" or 84", & 95".

If you happen to have a window that falls in between these sizes, you could use curtains that are a little longer, or a little shorter, depending on the desired look you are trying to achieve.

Example; if your window measures 60", you could use a 63" long curtain which would hang 3" longer than window sill, or a 54" long, which would hang 6" above window sill.

You could also move your curtain rod hardware to accommodate for the difference in lengths if possible, or order a customized length from us.

Tiers Curtains , which are commonly referred to as " privacy curtains" are generally used to cover the bottom half of your window. Tiers should hang down so they just barely reach the window sill. Some people use Tiers as a stand alone window treatment in windows of short lengths.

Tiers curtain size

Panel Curtains are often displayed hanging longer than the window. Some people like them to hang just a few inches longer than the window sill. Most rod pocket panels are displayed in this manner.

Panel curtain size

While another popular look is for them to hang down to the floor. For floor length we recommend a 1/2" - 1" above the floor in high traffic areas to help keep them clean and dust free. A common way to display grommet panels & tab top panels.

grommet panel curtain size

And for those who wish to create an elegant puddling look of panels gathered on the floor, you would want to add anywhere from 12" - 18" added length to the rod to floor measurement.

Panel curtain elngth puddling on floor

When using Valances Curtains, most people like them to hang just long enough to create an eye appealing look while not blocking one's view through the window.valance size Window Toppers designs our valance styles such as ruffled valances and tailored valances with this in mind.

Swag Curtains are another curtain style that the desired length can vary depending on ones personal taste for the look they are trying to achieve. Swag curtain size If you intend on using a swag curtain in a kitchen window above a sink or working area like a counter top, we recommend that the length of the swag be short enough so it does not come into contact with either water or food prep area for obvious reasons.
When displaying our ruffled swags curtains or tailored swags curtains in a living room, dining room or bedroom window, this is not a a factor. While some people like the simplistic look of our tailored swags to have the length not go beyond the window sill, others create an fantastic country look with our ruffled swag curtains by letting them hang a little beyond the window sill by a few inches. Its all based on the look you are attempting to achieve.

CUSTOM LENGTHS - Do you find that you may be in need of an odd size (in between industry standard sizes) or have unique look you are trying to achieve ? Lucky for you Window Toppers is one of the only places you can have the length of most curtains CUSTOMIZED TO YOUR DESIRED LENGTH FREE OF CHARGE ! See our Order Custom Length Curtains page for info.

Measuring The Width Needed:

"Finished Width" - Definition = The Finished Width of a curtain or window treatment is the "overall" width measurement of the item laying flat, not installed / or hanging on the rod.

This is the measurement you see advertised in the product name of each product in our web site.

This finished width measurement is not the actual size/width of a window that it will accommodate, but rather the overall measurement of the item / product laying flat before placing it on a curtain rod.

On most curtains & window treatments, it takes one and a half to three times more material/curtain to provide the proper fullness in appearance when installed/hanging on rod than the actual window width.

Measurements & Size Help Tab To help guide your selection, we provide information in the description of each and every product as to "what size window each curtain / window treatment will accommodate", along with additional help and size information when you click on the MEASUREMENTS & SIZE HELP tab on any product page. (see image below)

For more information on figuring out what width curtain or window treatment you might need, please read the information below...

With the empty curtain rod hanging in window, measure the width of the rod from left to right.

A common rule for displaying curtains (excludes drapes) properly is the curtains finished width should be at least 1 1/2 - 3 times the width of your window to achieve a look of proper fullness in appearance.

Example: If your window measures 40" wide ( window width x 1.5 = minimum width needed / x 3 = maximum width needed), you should need a curtain ( or curtain set/pair) with a width between 60" - 120 wide to properly cover your windows width, and achieve it's proper appearance.
A few inches narrower or wider should not make a difference.

Pinch Pleated Drapes / Patio Door Drapes

This style of window treatment does not get gathered on a curtain rod (no rod pocket), so the width of your window or patio door / or drapery rod is approximately the width size you would need. With patio doors (sliding glass doors), a little extra width may be needed beyond the actual width of the door frame. With traverse rods (open & close with draw string) you would want the drapery panel or panels to pull completely off to the side to allow for use of the door without the drape interfering with the function of the door.

One important note about how the finished width of drapes is measured. The finished with of drapes is measured across the top of the drape, where the pinch pleated heading is located. The width measurement across the top of the drape is different (less) than the width of the bottom of the drape due to the fact that fabric is gathered and sewn into place when creating the pinch pleats in the heading. Example - when you order a pair of 72 inch wide drapes, these consist of two drapery panels measuring 36 inches wide each. A 96 inch wide Patio Door Drapery Panel on the other hand, consists of one drapery panel measuring 96 inches wide.

If you have a drapery rod already installed on your window or patio door, measuring the length from the rod down to approximately where you would like them to hang will give you the estimated length needed.

Measuring for Door Curtains - (door panels curtains)

*Measuring the length needed on Door Panels is done from the top stitch line of the top rod pocket to the bottom stitch line of the bottom rod pocket.

The length of Door Panels which we sell are measured in this manner - from rod pocket to rod pocket.

Example; Our Style# 8420 "Kerry" 40" wide x 63" long Tailored Door Panel. If you select a 63 inch length for the size it measures 63 inches from "rod pocket - to - rod pocket".

If you are measuring rods already installed on a door, the measurement from rod-to-rod is the length you will need.

You can also adjust where the rods are mounted to accommodate Door Panels you are going to buy.

Each 40" wide Door Panel can accommodate approximately 15" - 20" of window width. Most normal width doors require only one or two Door Panels per door window (depending on width). French Doors (Double Door set-up) would require two Door Panels, one for each side.

Measuring for Scarf Valance Window Treatments:

Deciding on the length you might need for a Scarf Valance is a judgement call on the customers behalf, because everyone has their own personal taste on how they like to display them.

That is the strongest feature of choosing to decorate your window with a Scarf valance curtain - it's versatility. If you look at the many different styles of Scarf Valances curtains in our site, you will see that many of them are displayed in different ways.

Please read the following information for assistance.

Scarves can be adjusted by hand to accommodate a wide variety of window sizes. Everyone has a different idea as a matter of personal preference on how they like to have Scarf's displayed.

Here is a basic formula for helping you estimate what size you may need.

Length of Window x 2 = ______+ width of window ______ = estimate of scarf length needed.

(Example: if the length is 63" and the width is 32", 63" x 2 {=126"}+ 32" = 158").

This would be the longest possible length you may need - if you would like your scarf to hang down to the bottom of your window sill.

Many people like them to hang down to the floor.

We do not make a 158" Long Scarf (nobody does), and would recommend a 4 YARD - 144" Long Scarf for this window.

At 144" Long, this Scarf would hang down to approximately 7" above the window sill on both sides.

We make scarves in these three lengths... You can be the judge of what length you will need.

The lengths are 108" (3 yard), 144" (4 yard), and 216" (6 Yard).

If you would like to phone us at # 1-800-549-8289 or email us at and tell us the size of your window and what style and item you might be interested in, we can help guide you by telling what size we would recommend.