The cover profiles of the DURAFLEX KF series securely cover expansion and movement joints in floors and walls. Please order the retaining clips separately depending on the joint depth. For floor applications we recommend the following formats: Joint width 15-20 mm = profile width 50 mm (retaining clip type A) Joint width 20-30 mm = profile width 60 mm (retaining clip type A) Joint width 25-35 mm = profile width 70 mm (retaining clip type B) Joint width 30-45 mm = profile width 90 mm (retaining clip type B) For wall applications we recommend the following formats: Joint width 15-30 mm = profile width 50 mm (retaining clip type A) Joint width 20-45 mm = profile width 60 mm (retaining clip type B) Joint width 30-45 mm = profile width 70 mm (retaining clip type B) Joint width 35-45 mm = profile width 90 mm (retaining clip type B) Joint width 40-45 mm = profile width 140 mm (retaining clip type B) Please note the joint depth.