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» Blinds » Blinds & Shades Technical Tips

Mounting horizontal blinds that are too narrow

Occasionally blinds are measured incorrectly and they are not wide enough for your window. Manufacturers will typically deduct approximately 1/2" from the specified measurement for proper clearance. If you have ordered blinds that are too narrow sometimes you can still mount them by installing them as a ceiling mount to the top of the window sill. Installation will be similar to an outside mount . You will need the following tools:
  • A hand, electric or cordless drill with a 1/4" nut driver or a slotted screwdriver bit
  • 3/32" drill bit
  • A pencil
Here are some simple installation steps to follow:
  1. Position Headrail
    Mount blinds with slight gap between the window sill and the blind headrail Place blind centered in the window with the brackets and mark with a pencil on the top of the window sill on each side of the blinds headrail. Make sure that the distance from the edge of the headrail to the sides of the window sill are the same on both sides.
  2. Installing the mounting brackets
    Screw the mounting screws through the brackets into the top of the window sill rather than the side. Remember, there will be a slight gap between the edge of the bracket and the window sill.
  3. Install blinds
    Slide the blinds into the brackets and close the hinges.
  4. Install the valance
    Once the blinds are installed you can put the bracket on the blinds with the mounting clips provided. You may want to re-order a new valance to match the exact width of the window so there are no gaps on the sides of the valance.
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