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How to Cut Vertical Blinds

Updated July 20, 2017

Vertical blinds for windows typically come in a standard length of 84 inches. Some manufacturers and distributors will custom cut your new vertical blinds, but often for an additional fee. Low ceiling height, the installation of an exceptionally thick carpet, or the installation of a new floor over top an existing floor are all reasons why a length shorter than standard may be required for your vertical blinds. You may wish to trim a set of existing blinds when relocating them from one window to another. The basic technique for cutting vertical blinds varies only slightly according to the material with which they are made.

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  1. Remove vertical blinds from rod and lay on bare floor or other suitably long, flat surface.

  2. Remove weights from bottom of fabric louvres and set aside.

  3. Measure each louvre lengthwise and mark with pencil. Allow enough extra length to fold and resew the weight pocket (approximately 2 1/8 inches extra).

  4. Cut each louvre individually with scissors and straight edge where marked.

  5. Fold each louvre under, and sew to create weight pocket.

  6. Put vertical blinds on a flat surface.

  7. Measure each louvre for desired length. Mark with pencil.

  8. Cut each louvre using scissors and straight edge.

  9. Sand louvres with minimal pressure to eliminate rough edges. Start with a fine grit and end with superfine-grit sandpaper.

  10. Lay vertical blinds on a flat surface.

  11. Measure louvres and mark with pencil for cutting.

  12. Cut each louvre individually with a chop saw.

  13. Sand bottom edge of each louvre, beginning with fine-grit sandpaper and ending with superfine grit. Use only enough pressure to sand away rough or uneven edges.

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Things You'll Need

  • Measuring tape at least 84 inches (7 feet) in length
  • Pencil
  • Straight edge
  • Scissors, sharp and heavy duty
  • Chop saw (for wood and faux wood blinds only)
  • Sandpaper, fine through superfine grits (for all but fabric blinds)
  • Sewing needle (for fabric blinds)
  • Matching colour thread (for fabric blinds)

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