When you invest in our ISO45 sectional garage doors, you’ll have the option to upgrade your doors with vertical tension spring technology or sturdy torsion springs. Our ISO45 doors (up to 3000 x 2750 mm (WxH))* can be equipped with torsion springs. These springs feature a maintenance-free spring fracture safety device which is certified to EN 12604. This service can be provided at an extra cost.
For all larger versions of our ISO45 doors, torsion springs are equipped, ensuring that these doors remain in place and can be pushed back up, even if a spring fails.
This applies to woodgrain finish models only. The size restriction for smooth surface models is set lower at 3000 x 2500 mm*