How To Measure Curtains: The Expert Way to Design a Perfect Space

How To Measure Curtains: The Expert Way to Design a Perfect Space

Online, you’ll find dozens of pages of DIY instructions promising you the formula for how to measure curtain sizes. There’s a lot of conflicting advice out there, with complicated instructions and formulas to follow. 

The reason there are so many different opinions on how to measure for curtain panels is that there’s no single approach guaranteed to produce stunning results. At SkiptonWall, every window we measure for curtains has different requirements. A bespoke fit is required to suit the unique architectural features of UAE and KSA homes. 

So, while we can’t promise you a magic curtain-measurement formula, we can share insights into how our expert team works. Here are the answers to our customers’ most common curtain measurement questions. 

Key Takeaways

  • Accurate curtain measurements depend on far more than window width and height; heading style, fullness ratio, fabric weight, and mounting method all affect the final result.
  • Professional measurements help achieve a polished finish, particularly in UAE and KSA homes where windows, ceiling heights, and architectural details vary significantly.
  • An expert home consultation removes any guesswork, ensuring every measurement is calculated precisely for your space and style.

Table of Contents

What Size Curtains Do I Need for My Window?

Working out exactly what size curtains you need, down to the last millimeter, is one of our team’s main aims when we visit you for a home consultation on curtains.  

Taking measurements of your window will be crucial. We’ll need the height, width and depth of your window. However, there will be other factors for us to consider, such as:

  • Curtain style, length and fullness
  • Practical requirements for opening and closing
  • Curtain mounting

Once we have all this information, we can determine the optimal width and drop for your curtains to achieve the finish you desire. 

What Happens If the Curtain Size Calculation is Wrong?  

DIY measurements risk problems. Major miscalculations can result in incomplete window coverage that looks unsightly and lets too much light and heat through. 

Even tiny miscalculations impact the finished look of your curtains and disrupt the overall aesthetic of your room. Issues caused by incorrect measurements can include:

  • Awkwardly situated headers
  • Slivers of light through gaps
  • Gathering that does not hang correctly 

How Long Should Curtains Be?  

There are three classic lengths of decorative curtains: floor, sill and apron length. 

Floor-Length Curtains

Floor-length curtains are often favored by interior designers for their luxurious appearance. Floor-length curtains can skim the floor, sit just above it, or pool dramatically. 

Pooling looks sumptuous but is not so practical if you open and close curtains often, or if you have pets or children. This style is difficult to achieve without expert guidance, since you want the curtains to look like an intentional design statement rather than messy or ill-fitting. 

Long curtains that hover just above the floor look smart and modern. To achieve this aesthetic, your curtains must come as close to the floor as possible without actually touching it. This is why it is important to trust professional measurements, as there is little room for error.

Sill and Apron-Length Curtains

Sill-length curtains sit just above the windowsill for a neat and tidy look. It is essential that the precise length be calculated to achieve this finish. 

Apron-length curtains cover the window sill trim, so they let less light through. This length is a popular choice for bedrooms and children’s rooms, or for areas with furniture beneath windows. 

Curtain Fullness Ratio Explained 

DIY instructions for how to measure curtain sizes often discuss calculating the ratio of fabric to the width of your window, track or pole. This is because the greater the fabric width relative to your window width, the more gathering and fullness you will have.

Tab tops and eyelet curtains have the least gathering, so the required ratio is usually around 1:1.2, with the fabric just a little wider than the window, giving a more sheet-like finish. Pencil pleat and deep pleat curtains, on the other hand, require much more fabric to cover the same width, so the ratio is usually closer to 1:2.5. 

Gathering and pleating, and therefore fullness ratios, are complicated. Trust a professional to know the right pleating ratio and style for your chosen aesthetic.  

Measuring for Curtain Rods and Track Systems 

There’s a lot to consider when you want to know how to measure windows for curtain rods, tracks or poles. First, you need to know exactly what system you require. 

One thing to keep in mind is the curtain fabric, since it affects the curtain's weight and the support it will need. 

The second is the look you want to achieve. Do you want simple eyelet curtains that hang from a pole? Or deeply pleated curtains that hang from an invisible track, for example.

Practicalities come to mind next. Would you appreciate the convenience of remote-controlled curtains?

Once you have chosen the hanging method, an expert team like SkiptonWall can ensure the correct measurements are taken. Precise calculations ensure the curtains open and close perfectly. 

Measuring for Curtains: FAQs

Can I use standard curtain sizes, or should I go custom?

Standard curtain sizes rarely suit the precise dimensions, ceiling heights, and architectural features found in Dubai properties. A bespoke approach eliminates the risk of gaps, poor gathering, or an ill-fitting finish that off-the-shelf sizes cannot reliably avoid.

How do I measure for layered curtains (sheer + blackout)?

Layered curtains require separate measurements and a track or pole system that accommodates two sets of fabric. Each layer needs its own fullness ratio calculated independently. Because fabric weight and stack-back space both affect the final result, a professional home consultation is the most reliable way to ensure both layers hang correctly.

What mistakes should I avoid when measuring curtains?

The most common mistakes when measuring curtains include underestimating the fabric fullness needed and failing to account for header placement. Even a few millimeters of error can cause gaps, uneven gathering, or curtains that do not reach the floor as intended. For UAE or KSA homes with larger or custom-shaped windows, professional measurements remove this risk entirely.

Bespoke Curtains and Blinds From SkiptonWall

Getting how to measure curtain size right is not something to leave to chance. Every window is different. The variables involved, from fullness ratios to ceiling heights to fabric choice, require expert judgment to get right. 

At SkiptonWall, our team brings that expertise directly to your home. From your initial consultation through to installation, we handle every measurement and detail so your curtains hang exactly as they should. Contact SkiptonWall to arrange your free bespoke curtain consultation in Dubai.

This blog is brought to you by:

The SkiptonWall Experts

With over 50 years of experience in curtains, blinds, and wallpaper, the SkiptonWall team has completed tens of thousands of installations across the UAE and Saudi Arabia. From fabric selection to precision fitting, our experts bring hands-on industry knowledge to every piece of advice we share.