Measuring route holes for replacement blind slats
For routed blind slats:
1. Measure from the left end of the slat to the middle of the 1st hole.
2. Measure from the left end of the slat to the middle of the 2nd hole.
3. Repeat for all route holes on the slat.
For routeless blind slats:
1. Measure from the left end of the slat to the middle of the notch on the slat.