๐ Step 1: Master the Window Width Measurement
Start by measuring the outer edge to outer edge of your window frame, not just the glass opening.
This is your baseline measurement that most people get wrong.
Professional designers always measure the window frame because curtains should frame the entire window structure, not just the glass.
๐ Step 2: Apply the Professional Width Formula
Hereโs the secret: your total curtain width should be 2 to 2.5 times your window width measurement.
For example, if your window measures 1200mm (47 inches) wide, your curtains should total 2400-3000mm (94-118 inches) in width.
This fullness ratio creates beautiful, luxurious folds when curtains are closed and prevents that flat, cheap appearance. Lightweight fabrics need more fullness (2.5x), while heavier fabrics work well at 2x width.
When designing a home, you have to think step by step. You can't jump straight to choosing furniture before considering the windows โ and even before that, the placement of those windows depends on the site and its surroundings. That's why it's important to learn the process in the right sequence.
Hereโs a 14-day commitment you can make to learn home design in a clear, structured, and organized format
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๐ Step 3: Calculate Height for Maximum Impact
Install your curtain rod 100-150mm (4-6 inches) above the window frame and let curtains drop to just above the floor - never short curtains!
This floor-to-ceiling approach makes your rooms appear taller and more sophisticated.
Measure from your planned rod position down to about 12mm (0.5 inch) above the floor to avoid dragging.
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Ready to transform your entire home design approach? Want me to design your home? Click here for personalized architectural consultation.
P.S. If you're curious where the full collection of these illustrations is, it's right hereโ
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