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How to Adjust Vertical Blinds for Windows

Updated February 21, 2017

Adjusting vertical blinds for windows is a simple if somewhat time-consuming task. If your blinds are too long they will drag on the floor and either bend or fall off. A window blind is typically made from slats of fabric, wood, plastic or even metal, and to adjust the length you'll need to trim each individual slat.

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  1. Remove the individual slats from the window blind housing. You may be able to simply push up on the slats and slide them to the side to remove them. If your blinds have a locking mechanism, use a screwdriver and push between the blind and the mechanism to release each slat.

  2. Measure from the top of the window blinds down to the spot you want the vertical blinds to hang with a tape measure. Then measure each slat for the same distance and mark the spot lightly with a pencil. Re-measure to ensure accuracy. Once you start cutting you want to be positive about the uniform length of the blinds.

  3. Lay each slat on a flat table or floor. Be sure to put a scrap piece of wood or linoleum under the spot where you will be cutting to avoid damaging your floor or table. You may want to tape the slat down with painter's tape to ensure that it remains still during the cutting process.

  4. Align the straight edge with the pencil mark you drew in step two. Take a utility knife and cut through the slat. Repeat with each slat until the blinds are all the appropriate length. If your slats are too thick for a utility knife, use a small saw to cut through each slat.

  5. Re-install your blinds by clicking them back into the locking mechanism or sliding them into the groove in the reverse order from step one.

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Things You'll Need

  • Screwdriver
  • Tape measure
  • Utility knife or small hobby saw
  • Straight edge

About the Author

Steve Bradley is an educator and writer with more than 12 years of experience in both fields. He maintains a career as an English teacher, also owning and operating a resume-writing business. Bradley has experience in retail, fashion, marketing, management and fitness. He holds a Bachelor of Arts in English and classics.

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