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Build This Clever DIY Corner Shelf For Under Your Mounted TV Today

Learn how to make this DIY wall mounted corner shelf

Have you ever wondered how to design once your TV is corner-mounted? Well, that was our problem so, of course, we were looking for a DIY corner shelving solution!

We recently wanted to update our living room space after our amazing porch addition happened. Our living room slowing has been getting a facelift, from a newly painted fireplace mantel to simply moving some furniture around. 

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DIY wall mounted corner tv shelf with wooden corner shelf on pipe flanges under a tv

When we mounted our large TV in the corner, we had to really come up with a corner mounted wall shelf that would allow us to hold our cable box and DVD player…

(yes my kids still love getting DVDs from the library) without seeing all the cords all over the place.

Corner wall shelf ideas

Here are a few corner shelves that I looked at purchasing, but I just couldn’t bring myself to purchase them since I knew we could make one ourselves.

18″ Rustic Floating Shelf from Amazon

French Floating Corner TV Stand for TVs up to 55″ from Wayfair

DIY tv shelving project for the win!

After searching for corner shelf ideas, there just wasn’t anything I thought was worth buying. Either I loved the look, but didn’t want to pay the price. Or there was just not a shelf design that was going to work for us.

We ABSOLUTELY loved our DIY industrial shelves we did our small bathroom makeover, that we knew we wanted to repeat the same look but for a floating shelf under our tv.

Factors to consider when having a corner-mounted TV

Placement of electrical outlets

How many cords will you need to run in your wall? Do you care if you see a cord?

Will there be any furniture underneath your corner or regular mounted TV?

What do you need next to your TV? Cable box? DVD players? Gaming systems?

Read more: 28 DIY Shelves For Any Home Decor Style

Here are considerations for placing your TV in the corner and for our DIY corner mounted wall shelf in our living room

Due to the positioning of our windows and new sliding doors that we love, we had to mount our tv in the corner.

In my opinion, a regular wall mounted tv and regular shelf would have been easier to build and put up, but it just didn’t work with our room. We bought this heavy-duty mount and had an electrician move our electrical outlet so that it would be behind the TV.

Did you know????

The standard height to put the outlet was 6 feet? I swear I thought it was too high, but then once the TV was mounted and tilted a little forward it didn’t matter.

How to hide your cable box and other cords when your tv is mounted?

In addition to having the electrical outlet moved, we also had our television cable moved up so that the cable jack would be 6 inches below the tv and where we would need to put our corner shelf under our television. This was so that the cable wire would come right out of the wall and directly into the cable box. 

We probably could have done this ourselves, but we had workers and an electrician already at our house for other projects so it just made sense for them to complete this for us.

You then have to run the power cord and HDMI cord through a bypass in the wall.

This was a little difficult to do, but I love that all the wires were sent there and hidden out of view. 

Here is an example of the bypass we used to help hide out cables. Feel free to click on the picture to learn more about it on Amazon.

And by a little difficult, I mean a total pain to awkwardly be behind your corner mounted tv hoping wires don’t get all mixed up in your wall!

You may also want to consider buying a shorter HDMI cord, depending on much space you have to cover. I had to use a twisty tie in the back of my cable box to hide the extra cable cords.

Pin for later!

How to build a corner shelf like a pro with tv shelf

What if you don’t want the tv cords to go through the wall?

I did consider painting a small piece of PVC pipe the same color as our wall (SW Livable Green). However, there is also this product that fits nicely in the corner that probably would work well with a corner-mounted tv and corner shelf. The corner shelf really does hide a lot!

Tip for when hiding wires from your mounted tv

Keep a metal sturdy wire in the bypass and wiggle it around can really help you get the cords from the top to the bottom.

You can pull out the wire once you have gotten all of your cords through. You have to drop them down, don’t try to push them up through the bypass.

How to make a corner wall shelf

If you look up corner shelving units, it is hard to find anything worth the money or that we thought would work for the corner of our living room. 

It is so amazing when your love for DIY allows you to make what you can’t seem to find. We even had leftover wood from a different project that we used to make the triangular corner tv shelf!

The original piece of wood was a 10 foot long 1″ x 8″ piece of poplar.

1. Use a miter saw to cut a 45-degree angle. The angle carries through two (2) pieces of wood in our case to make appx. a 20″ wide shelf. Depending on the thickness of the width of wood the number of cuts will vary.

Wall corner shelf wood clamped together using c clamps


our work table was our DIY outdoor table that we made from leftover composite decking!

2. Glue wood together with wood glue. My husband recommended this brand. After gluing, clamp the wood together using C clamps.

Tv Shelf Building Tip: Use Wax paper with Clamps!!!

A trick is to put wax paper between the bottom of the clamp and the bottom of the C clamp so it will stop an excess glue from sticking to the clamp.

3. Sand corner shelf using 80 and 120 grit sandpaper.

Edge of corner shelf needed sanding

4. Stain DIY corner shelf after sanding. We used our favorite stain color! I love the richness and depth of this color.

DIY stain used for shelving project

5. We loved the look of these industrial shelves in our bathroom makeover, that we knew we wanted to use these flanges and pipes again. So in the online cart they went…

6. When installing the shelves, make sure you attach the flanges to studs, especially if you plan on placing anything heavy on the corner shelf. We used drywall supports before screwing in the flanges and a level to make sure our measurements were correct.

Wall with measurements to add DIY corner shelf under TV mount

7. Screw-in both flanges and pipes. Check they are level before attaching the stained triangular wood shelf.

Handheld drill screwing in flanges to wall

Notice in the picture how you can see the cord bypass below the TV. The HDMI cord and power cord were just taped out of the way until we could get the cable box set up.

Flanges for DIY corner shelf

8. Screw-in the pipe fittings into flanges. Make sure they are level before attaching the shelf using small screws provided.

Detailed view of industrial pipe for DIY corner shelves

Related Post

7 Amazing DIY Wood Projects Using Our Favorite Stain Color (who would have thought we would have been able to use the same color on so many different projects).

DIY Wooden Floating Desk (in the sane stain color)

Wooden corner TV shelf with pipe flanges

Enjoy having your DIY corner shelf under your corner-mounted TV!

brown cabinet under corner mounted tv with DIY corner wall shelf

What about corner wall shelves you can buy?

Here are a few corner shelves I found that I maybe would have bought it we were not able to make our own industrial corner shelf to go under the television.

The DIY Project Challenge

For the DIY Project Challenge, each month there is a different theme.  

Here are a few of past month’s challenges.


Midcentury Modern Dresser Makeover: DIY organization challenge

DIY Canvas Art: Challenge using wood and one other material

This month we needed to use wood we had lying around, so this DIY corner shelf for under our television was perfect to add the challenge.

Let’s check out some of the amazing things my blogging friends created for their projects. I just can’t wait to see the DIYs!

Kippi at Home: Decor Display Riser

1905 Farmhouse: Scrap Wood Skeletons

Mama Dares to DIY: DIY Rustic Centerpiece Box

Olivia Ohren: Scrap Wood and Resin Charcuterie Board

We just love our new corner-mounted TV & corner shelf!

Our living room really opened up and seemed a lot bigger once we added our own DIY touches. What is your favorite DIY project? We would love to hear about it!

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Sunday 8th of September 2019

The shelf looks great, and I'll exactly where to come when it's time to mount one myself. Highlight for me: "How to hide your cable box and other cords?" I don't like the look of untidy cords adorning a space.

Jenn Summers

Sunday 8th of September 2019

This is such a cute idea for a corner shelf! You would not believe how hard it is to find flanges here! I searched and searched when I was wanting to make a barn door and could not find them anywhere, sigh. Love the 3-speed brushless impact I just got one for my birthday! Eek!

Olivia O'Hern

Tuesday 3rd of September 2019

Your shelf turned out great! I really dig those pipes and those cords are so well hidden. Good job!


Tuesday 3rd of September 2019

Thanks Olivia! I am so happy I got to do this DIY challenge with you. So great to see the amazing DIY projects we all made!


Monday 2nd of September 2019

Your shelf turned out perfect. I love the industrial look and it really hide those ugly cords! I am going to make one of these too! Happy Fall, Kippi


Tuesday 3rd of September 2019

Thanks, Kippi! I love that I cannot see the cords from our corner-mounted TV! I loved being in this DIY challenge again. Such a great group of DIY bloggers!

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