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Home » Build It » DIY Glass Window Shelves

DIY Glass Window Shelves

September 27, 2010 Brittany Bailey 91 Comments

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DIY Glass Window Shelves

I love african violets! They can be fickle, but once they have the right amount of light, and slightly damp soil, they will happily put on a show for you. My violets used to perch on the kitchen window sill, but occasionally they would take a suicidal nose dive into the sink. To save them from inevitable death one day, I installed two glass shelves over the sink.

DIY Glass Window Shelves

Would you like to install your own glass shelves between two kitchen cabinets? It is a relatively easy project, but does require two sets of hands for one step. The directions below will take you through the step-by-step process for installing 2 glass shelves.

DIY Glass Window Shelves Materials:

(I’ve included affiliate links for your convenience. I earn a small percentage from a purchase using these links. There is no additional cost to you. You can read more about affiliate links here.)

3/16 inch tempered glass
quarter round moulding
paint (to match your kitchen cabinets)
medium size paint brush
painters tape
hammer
level
drill w/ bits
finish nails 1.25″ long
nail set
wood putty or caulk
flat toothpick or wood shim

DIY Glass Window Shelves Instructions:

1. First measure your window width and subtracted 0.25″ from the measurement.) Then measure the depth of your kitchen cabinets to the window frame (or tile, whatever sticks out the furthest).

DIY Glass Window Shelves

Take those measurements to a glass manufacturer and have them cut two pieces of 3/16″ tempered glass. Make sure that the edges will be smooth. And, definitely ask for the tempered glass. (My shelves never broke, but I banged them occasionally while being overzealous about washing dishes.)

2. Using the measurement you took for the depth of your cabinets, cut 8 lengths of quarter round (four for each glass shelf you are hanging.)

DIY Glass Window Shelves
DIY Glass Window Shelves

3. Prime and then paint the quarter round to match your cabinets.

4. Determine the height where you want your glass shelves to be. (I put each shelf at the same height as my window grill pieces.) Use a level and draw lines on your cabinet on one side of the window.

DIY Glass Window Shelves

5. Pre-drill three holes (the size of your finish nails) into your quarter round.

DIY Glass Window Shelves

6. Using a piece of painters tape, attach once piece of the quarter round to your cabinet. This is your shelf support piece, so make sure that the flat edge is facing up. Gently nail the finish nails through the predrilled holes and into the cabinet. Repeat this step for your other shelf support (on the same side.)

7. Rest one glass shelf on one piece of the installed quarter round. You will need an assistant to help hold the glass shelf up as you level it.

DIY Glass Window Shelves

8. Make a mark on the under side of your glass.

DIY Glass Window Shelves

9. Double check that the mark is level (from front to back), and line your next piece of quarter round below the line. Repeat steps 5 & 6 above until you have the four shelf supports installed.

10. Gently rest your glass shelves on the supports.

DIY Glass Window Shelves

11. Pre-drill holes in your four remaining quarter round strips.

12. Set wood shims (or toothpicks) on top of the glass shelves and up against the cabinets on both ends. Rest your quarter round strips on top of the shims. This should give you a slight space between the glass and the quarter round. Now, tape the quarter round pieces in place and REMOVE BOTH glass shelves and the shims.

DIY Glass Window Shelves

13. Nail your quarter round pieces in place. Use a nail set to countersink (set the nail below the wood surface) all your nails. Fill the nail holes with wood putty or caulk and touch it up with your paint.

14. When the paint has dried, slide in your shelves. The shelves should slide in easily and should not be tight.

DIY Glass Window Shelves
DIY Glass Window Shelves

15. Put some plants or other accessories on your new shelves! And enjoy.

DIY Glass Window Shelves

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Comments

  1. Bonnie Wagaman says

    November 11, 2020 at 5:21 pm

    My smart husband came up with a good fix. He got an L shaped piece of trim and cut it to the length of the shelf. We didn’t want to drill wholes in the tile, so he used clear flex seal waterproof glue and glued one side of the L-trim to the tile to create a ledge for the back of the glass to sit on (Have to let the glue cure for 24 hours). The glass is now holding it’s shape. I would submit pictures, but not sure how.

    Reply
  2. Bonnie Wagaman says

    November 6, 2020 at 2:59 pm

    I love the look and the directions were great and easy for anybody to follow. I was a little disappointed and thought it a valid reason to comment. Per instructions, I purchased the 3/16 tempered glass. I think there should be more specific info as this doesn’t work for all cabinets. The distance between my cabinets is 40-1/4 so I ordered 40″. This distance was too much for the glass. Before I could even begin to mark the lines to put the top half of the quarter round, the glass began to sag in the middle. Either the length of the glass at 3/16 needs to be no more than 24-30″ or a much thicker piece of glass. We are either going to waste $50 on the glass shelf and spend more to get thicker, or use a finished board. Great idea, but there are limits.

    Reply
    • Brittany Bailey says

      November 11, 2020 at 2:37 pm

      Yes, good idea. You need to think about your span and the amount of weight you’ll be putting on it. It’s a good idea to talk to the glass company about your situation. I’m sorry you are in this situation. Thanks for the comment.

      Reply
  3. Kimberly Jones says

    August 17, 2020 at 5:29 pm

    This is brilliant…thank you. Been looking for this kind of window treatment and I love plants.

    Reply
  4. Sidney says

    February 10, 2020 at 1:56 pm

    What a great idea!

    Reply
  5. MaisieD says

    December 18, 2018 at 1:12 am

    Any idea how much weight this could hold? Toaster oven??

    Reply
    • Brittany Bailey says

      January 10, 2019 at 11:19 am

      You should ask the glass manufacturer as it will depend on the glass and the distance your shelf spans.

      Reply
  6. Frances washington says

    August 16, 2018 at 7:23 pm

    Where to buy 40x 16 tempered glass shelves

    Reply
    • Brittany Bailey says

      August 16, 2018 at 10:11 pm

      Look for a local glass shop.

      Reply
  7. lisa bak says

    August 3, 2018 at 3:21 pm

    This is exactly what i need for the alcove glass shelves I’m having installed in my loo. I was not happy with the idea of battens and wanted something less obvious. Thank you!

    Reply

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Hi, I'm Brittany aka Pretty Handy Girl. I like the smell of coffee and sawdust in the morning. I live to break stereotypes and empower you to take on your own DIY project.

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