No Holes, No Glue Bathroom Shelf




Introduction: No Holes, No Glue Bathroom Shelf

About: I'm a social-worker, working with 12 - 23 year-olds. I used to be a printer. In 2018 I opened a small makerspace ( in my house, where I have lasercutters, 3d-printers, Arduino's, Mindstorms and ...

For my new (and very small) bathroom, I wanted to make some shelves. I'm not really sure how definite the shelves will be. So I didn't want to drill any holes in my new tiles. Besides that, the tiler told me that my tiles are extremely hard and therefore almost impossible to drill into.

I never like to glue shelves, because glue will get old and the shelves might come down in time.

My bathroom is small, but big enough for me. The small size of my bathroom is an advantage when I want to clamp my shelves in place, so that is what I did.

You do need two walls close to each other to clamp the shelf in-between.

Step 1: You Will Need



  • wood
  • wood-glue
  • laquer


  • aluminium or inox 15 x 15 mm L-profile
  • aluminium or inox 15 x 15 x 15 mm U-profile
  • Inox screws
  • Inox nuts and bolts (M6)
  • rubber blanket
  • contact cement



  • wood clamps
  • brushes
  • saw
  • router


  • drill
  • screwdriver
  • 10 mm spanner (2x)

Step 2: The Shelves

I will not really go into detail in how to make the shelves. You can make them however you please.

A few things are important:

  • The length of the shelf needs to be just 2 mm shorter than the space between the two walls.
  • The shelf needs to be strong enough to hold the power of the clamp. Both the pushing strength and the screws that hold the clamp.
  • To hide the clamp it is nice to have a lip in front of the clamp.

Step 3: Prepare the Metal for the Clamp

To make the clamp you will need some metal profiles that doesn't rust. In a bathroom, that would be a problem.

  • Measure the width of the shelf behind the the lip.
  • Cut two pieces of L-profile and one of the U-profile to the width of the shelf.
  • Drill four holes in one side of the L-profile. Big enough for the inox screws to fit through.
  • Do the same with the other L-profile.
  • Clamp or hold one L-profile to the U-profile.
  • Drill two 6 mm holes through both the L-profile and the U-profile for the M6 bolts to go through.

Step 4: Add the Rubber Blanket

To really give the clamp some holding power, we need to add some rubber. I used rubber from a rubber blanket that offset printers use and throw away every now and then. You can also use rubber from a inner tire or something you have.

  • Measure the size of the cut profile.
  • Cut the rubber to size. (2x)
  • Glue the rubber to one L-profile. (on the outside of the side where not the holes are)
  • Glue the other piece of rubber to the U-profile. (on the outside of the side opposed to the side with the holes)

Step 5: Test Fit

This is a good moment to test fit het clamp and pre-drill all the holes.

  • Put the L-profile with the rubber on it on one edge of the shelf, with the rubber just outside the shelf.
  • Hold it firmly in place.
  • Mark the four holes with a drill that is just smaller than the screws.
  • Remove the L-profile.
  • Drill the holes. Make sure that you don't go through the other end.
  • Screw the L-profile in place.
  • Put the bolts through the 6 mm holes of the L-profile from the inside out.
  • Put nuts on the bolts. (just 10 mm in)
  • Put the U-profile on the bolts.
  • Place the two profiles with the bolts on the other side of the shelf with the rubber just inside the shelf.
  • Mark the holes for the screws with the small drill.
  • Remove the profiles.
  • Drill the holes for the screws.
  • Screw the profile to the shelf.

Step 6: Finish the Shelf

This is a good moment to test fit your shelf.

If it fits... well it is time to take off all the profiles again.

Now finish the shelf. For me that was sanding, lacquer, sanding, lacquer, sanding... well you will get the picture.

Step 7: Putt It Back Together

Put all the profiles back on. It is really easy now, because all the holes are pre-drilled already and all the screws have been pre-screwed.

Be careful not to scratch or damage anything.

Step 8: Place the Shelf

Now it is time to place the shelf!

  • Put the shelf in place.
  • Bolt the nut further on the bolt with the two spanners.
  • Bolt until the rubber on the U-profile clamps to the wall.

(You might want to put a drop of lock-tide on the bolt)




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    85 Discussions

    Hi there,

    This design caught my eye. It made me think how it works and then I decided to ask you more about it. I hope I am understanding the mechanism correctly.

    At the wall end, the U and L profile increase the thickness of the profile.

    At the bolt-head/nut/L profile, there is just L profile. When you tighten the nut, that would put pressure on this L profile. This plate is more likely to bend more that the thicker profile at the wall end.


    3 replies

    Hi Datoo,

    Both profiles are the same thickness. I just used an U-profile so it will stay in place. I have this shelves still in place and they work perfectly.

    Hi there,

    I totally agree with you. It was my confusion thinking there was L-profile under the U-profile.

    Once again keep up with good work. Simple engineering = big benefits. Any other solutions you have to share?

    I'm am working on a lot of projects, but not all are my design, so it is not up to me to post them. I hope to post a real nice Sumo-robot kit soon. Not a solution for a problem, but very cool to play with.

    GREAT idea.

    For renters this is a fantastic idea.

    Thanks :)

    1 reply

    Thanx, and they still didn't come down :)

    Hi there.

    I like your thoughts but you will have to notice that the limitations on implied weight on the selves of this kind of installation (mean with pressure, without holes or glue). But in any case it is remarkable the way of instalment. Congrats!!

    3 replies

    Yes I know. I'm not going to sit on it. Until now, they are still holding :)

    Of course you will not do it!!!!!! I know my friend. My comment was to trigger other watchers.....Have fan!

    Hi there.

    I like your thoughts but you will have to notice that the limitations on implied weight on the selves of this kind of installation (mean with pressure, without holes or glue). But in any case it is remarkable the way of instalment. Congrats!!


    2 years ago

    thanx man
    since most collage dorms have "no wall modification policies" that should help alot
    i could think also of wall hangers
    and all sorts of stuff mounted that way

    1 reply

    It would be great if you could post some pictures when you've made something with this.

    Drilling holes in ceramic tiles is an easy enough thing to do. Purchase tile drill bits from Lowes Hardware or Home Depot. They look like little Indian arrowheads. The trick is to keep the bits wet while drilling. I used a spray bottle with water. The other 'most' important thing to do is only drill for for a few SECONDS at a time. These precautions are necessary to keep the tip from becoming too hot and breaking. I was about 62 years old when I did this. And I am a Grandmother! That's how simple it can be. Happy drilling! :)

    4 replies

    Thank you for this explanation. The problem is that I have extra hard tiles, so they are only cut-able with a diamond-drill-bit. According to my tiler that is.

    I have porcelain tiles on my kitchen floor too. While it was a slow process, a 1/3" masonry drill bit had no problem getting through it (for a door stop), even if it did take a while.

    The problem isn't drilling the holes, it's filling them if you remove the shelf, for whatever reasons - you can do it nicely, but it will always show.

    If you do decide to drill, any masonry drill bit will do. You just have to make sure you don't use percussion and don't go too fast (i.e. you should set your drill hammer on low speed and no percussion) until you're through the tile - you can use percussion afterwards, when/if you hit brick or concrete.

    You also have to make sure you keep the drill straight, aligned with the hole through the tile you initially drilled, or the tile you drilled through might become loose (no biggie either, you can glue it back on, provided it doesn't break).

    You don't have to keep the drill wet, it only helps bind the dust as it is created, instead of spreading all over your bathroom. Instead of wetting the drill, I use a vacuum cleaner with its nozzle placed on the wall right beneath the hole - it sucks up all dust as it is created. You can also drill continuously, neither the drill bit nor the drill hammer will mind.

    For normal tiles that would work perfectly, but not for my Italian tiles.