How to Measure for Curtains – Complete Curtain Measurement Guide
Measuring curtains correctly is an important step to ensure a perfect curtain installation. Proper measurements allow curtains to hang beautifully, cover the entire window, and create the right visual balance in your room. At NST Curtain, we provide professional curtain measurement services across Singapore, but homeowners can also follow this guide to understand how curtain measurements work.
Whether you are installing curtains for HDB flats, condominiums, or landed homes in Singapore, the measurement process follows a few simple principles. This guide will help you measure curtain width, height, and track placement correctly.

Step 1: Measure the Curtain Width
The first measurement is the width of your window or curtain track. Use a measuring tape to measure the full width of the window area where the curtain will be installed. In most cases, curtains should extend beyond the window frame so they can fully cover the window when closed and allow more light when opened.
For most homes in Singapore, we recommend:
- Extend 20–30 cm beyond each side of the window
- This ensures curtains can stack nicely when opened
- It also prevents light gaps at the sides
For example: If your window width is 200 cm, the recommended curtain track width may be around 240–260 cm. This creates a more elegant curtain appearance.
Step 2: Measure the Curtain Height
The next measurement is the height from the curtain track to the floor. Curtains typically look best when installed from a higher position rather than directly above the window frame. Installing the curtain track closer to the ceiling creates the illusion of a taller room.
Common curtain height styles include:
Ceiling to Floor Curtains
This is the most popular style for modern homes in Singapore. The curtain track is installed near the ceiling, and the curtain fabric flows all the way down to the floor.
Window Frame Height
Some homes install curtains just above the window frame. However, this style is less common because it makes the room appear shorter.
Floor Length Curtains
Curtains should ideally touch the floor lightly or have a small gap of about 1–2 cm above the floor. This prevents the fabric from dragging on the floor while still maintaining a clean appearance.
Step 3: Determine Curtain Fullness
Curtain fullness refers to how much fabric is used compared to the track width. For beautiful curtain folds, fabric should be wider than the curtain track.
Typical curtain fullness ratios are:
- 1.8x fullness – simple and modern look
- 2x fullness – standard curtain appearance
- 2.2x fullness – more luxurious folds
For example: If your curtain track width is 2.5 meters, the curtain fabric width may be around 5 meters depending on the fullness. NST Curtain will calculate the correct fabric width automatically during quotation.
Step 4: Choose Curtain Style
Curtain measurement can vary slightly depending on the curtain style. Common curtain styles in Singapore include:
Double Pleated Curtains
Double pleated curtains create elegant, structured folds. This style is very popular in HDB and condominium homes.
Ripple Fold Curtains
Ripple fold curtains provide a modern and uniform wave appearance. These are often used in contemporary interiors.
Eyelet curtains use metal rings that slide along a curtain rod. This style is simple and easy to install. Each curtain style requires slightly different measurements, so professional measurement is recommended for the best results.
Explore our curtain styles in Singapore including day curtains, blackout night curtains, and day and night curtains.
Curtain Measurement for HDB Flats
Most HDB flats in Singapore have standard window sizes, but measurements can still vary slightly depending on renovation and wall design. Typical HDB windows include living room sliding windows, bedroom windows, and balcony doors.
For HDB curtain installations, many homeowners choose day curtains combined with blackout night curtains. This allows better control of sunlight and privacy throughout the day. For new BTO flats, see our BTO curtain packages. NST Curtain installers are experienced with HDB window layouts and can recommend the best curtain system for each room.
Curtain Measurement for Condominiums
Condominiums often feature floor-to-ceiling windows or large balcony doors, which require precise measurements. Motorised curtain systems are also popular in condos, especially for tall windows where manual operation may be inconvenient.
Our team will measure curtain track length, ceiling height, curtain stacking space, and motor installation area (for smart curtains). This ensures the curtain system operates smoothly.
Why Professional Curtain Measurement Is Recommended
Although homeowners can measure windows themselves, professional measurement ensures the best results. NST Curtain provides free on-site measurement in Singapore to ensure curtains fit perfectly. Our specialists will check the wall structure, window design, and installation space before recommending the best curtain solution.
With professional measurement, homeowners can avoid common problems such as:
- Curtains being too short
- Curtains not covering the full window
- Incorrect track installation
- Uneven curtain folds
Book a Free Curtain Measurement in Singapore
If you are planning to install curtains in your home, NST Curtain provides free professional measurement and consultation across Singapore. Our experienced team will measure your windows accurately and recommend the best curtain styles, fabrics, and track systems for your space.
Contact NST Curtain today to book a free home visit or request an instant curtain quote online.
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