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# The made-to-measure spring configurator: how does it work?

There's no such thing as a "standard" spring

If the make of your door is Novoferm, Hormann, Tubauto or Normstahl, you need the manufacturer's original springs.

For all other doors, select the make from the menu, then configure the made-to-measure spring identical to the existing one (spring diameter, wire diameter, length...).

If your door's make isn't in the list, use one of our online configurators: https://www.aidegar.fr/27-configurer-son-ressort-de-traction.html for extension springs and https://www.aidegar.fr/1919-ressort-de-torsion.html for torsion springs.

### The principle

You enter yourself the technical characteristics measured on your old spring: spring diameter, wire diameter, length. For torsion springs, you'll also need to specify the winding direction and the finish.

Not sure about a measurement before configuring your spring? Send us your readings and a photo: we'll check with you before you place your order.