Specification > Standard Height & Width

IMPORTANT

• Wherever possible standard heights should be used.
• Should standard heights not be used a cut down blade is required. If this blade is less than 60mm the opening would need to be adjusted to standard heights.
• Each lever will only lift a number of louvres depending on the type and length. (Refer chart in this manual)
• Where one louvre meets the other and a new lever is required a spreader bar is used which is marginally wider than the normal blade holder and the louvre above that join is 10mm smaller.
• Add 38mm to overall frame height if reveals are required