How to Identify Your Roller Blind Mechanism

Choosing the right replacement mechanism starts with correctly identifying what you already have. Getting this wrong can lead to poor fit and wasted time.

Step 1: Check the Tube Size

The most important factor is the tube diameter:

• 28mm (DIY blinds)

• 32mm (made to measure)

→ 28mm & 32mm Roller Mechanisms

32mm Slotted tube

Step 2: Identify the Control Type

• Chain-operated (sidewinder)

• Spring-loaded

👉 Most modern blinds use chain mechanisms.

Step 3: Look at the Shape

Different brands use slightly different fittings:

• Round ends

• Flat or keyed ends

👉 Match visually where possible.

Step 4: Check Brackets

Sometimes the bracket type determines compatibility.

→ Roller Blind Brackets

Pro Tip

Take a photo of your mechanism before ordering — it helps ensure a match.

Conclusion

Correct identification ensures a smooth replacement and avoids unnecessary returns.