BTTO's Ultimate Eyelet Curtain Guide: 3 Steps to the Perfect Distance – Guaranteed to Be Flawless

Introduction

Want to install eyelet curtains yourself but aren't sure how to calculate the gaps? Do you rent and want to try DIY without complicated math? No worries! BTTO shares the "Golden Formula," tested by German engineers, that lets you easily calculate professional eyelet spacing. No special tools required—just simple math.

1. Why the eyelet spacing is so important

Incorrectly placed eyelets cause three main problems:

• Distorted wrinkles – the fabric appears restless
• Hard to move – opening and closing becomes laborious
• Light gaps – blackout curtains lose their effect

BTTO's solution: precise calculation + standardized production = perfect folds and an elegant drape – even for inexpensive curtains.

2. Step-by-step instructions (example: 320 cm window width)

Step 1: Calculate fabric requirements

• Window width: 320 cm
• Surcharge: 2× for ideal drape
• Total width: 320 × 2 = 640 cm

Tip:

• Small windows → 1.5× for budget solution
• Large windows → 2.5× for a luxurious look

Step 2: Calculate individual curtain panels

• Total width ÷ 2 lanes = 320 cm
• Seam allowances: 5 cm per side → –10 cm
• Finished width: 310 cm

Step 3: Calculate eyelet spacing

Method 1: Symmetrical aesthetics

• Number of eyelets = finished width (m) × 6 = 3.1 × 6 ≈ 18.6 → round to 18
• Distance = 310 ÷ 18 ≈ 17.2 cm
• Edge distance = 17.2 ÷ 2 = 8.6 cm

Effect: perfect symmetry – for perfectionists

Method 2: Near-wall solution

• Same number: 18 eyelets
• Fixed margin distance, e.g. B. 7 cm
• Distance = (310 – 14) ÷ 17 ≈ 17.4 cm

Effect: ideal when mounted close to the wall

3. BTTO's extra tips for DIY eyelets

1. Golden rule: 6 eyelets per meter of fabric (always use an even number)
2. Avoid mistakes: round to one decimal place, mark holes with a washable pen
3. Don't feel like doing math? BTTO eyelet curtains are prefabricated and fit standard German windows.

Recommended product: BTTO Blackout Curtain with Eyelets ｜ Ready Made ｜ 14 Standard Sizes

4. Frequently asked questions

What to do if the number of eyelets is odd?
→ Always round to an even number. Example: 17 → use 18 eyelets and recalculate.

What to do if the window width is different?
Formula:
Finished width = (window width × factor ÷ 2) – 10
Eyelets = finished width (in m) × 6 → round to an even number

Example: 280 cm window

• Fabric = 280 × 2 = 560 cm
• Track = 280 – 10 = 270 cm
• Eyelets = 2.7 × 6 = 16.2 → 16 eyelets

Which tool should I buy?
→ BTTO recommends metal hole punches with a diameter of 4.5 cm – plastic breaks easily.

Conclusion

In just 3 easy steps, you can calculate and install eyelet curtains with a professional look – without any sewing lessons. With BTTO, it's error-free, fast, and stylish.