How to Mount a Heavy Mirror on a Hollow Core Door

Written by emily patterson
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How to Mount a Heavy Mirror on a Hollow Core Door
Wall anchors make it possible to mount a heavy mirror on a hollow core door. (the mirror image by Jan Will from

A hollow core door presents a challenge as a place to hang heavy mirrors, because screws will pull out of the panels from the weight of the mirror. However, molly bolts, fasteners installed into the door and spread behind the door panel to distribute the weight, are a perfect solution for mounting a heavy mirror on a hollow core door.

Skill level:
Moderately Easy

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Things you need

  • Tape measure
  • Construction paper
  • Marker
  • Pointed molly bolt
  • Hammer
  • Screwdriver

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  1. 1

    Hold the mirror against the door in position. Measure the distance between the top of the mirror and the top of the door, using a tape measure.

  2. 2

    Lay a piece of construction paper on the back of the mirror so the top edge of the construction paper is at the top edge of the mirror.

  3. 3

    Poke holes in the construction paper at the location of the hanging hardware. Write the word "back" on the construction paper.

  4. 4

    Place the construction paper against the door so the word "back" is against the door. Measure the distance from the top of the door to the top of the construction paper. Adjust to match the distance determined for the top of the mirror.

  5. 5

    Place a level on two horizontal holes. Adjust the paper so that the holes are level and centred to the door.

  6. 6

    Mark the location for the molly bolts by pressing a marker on the spots where the holes were poked through the construction paper for the location of the mounting hardware.

  7. 7

    Drive the pointed molly bolts gently into the door at the location of the marks for the mounting hardware, using a hammer.

  8. 8

    Screw in the screws and tighten the molly bolt against the back of the door, using a screwdriver. Allow a bit of the screws to remain outside the hole. Hang the heavy mirror on the hollow core door.

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