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Build a floating bench

A step-by-step tutorial on how to build a floating bench for any space in the home.

Are you looking for a way to add seating to a room? Have you thought about mounting a bench to the wall? After finishing our basement, I finally had a small space to create a mudroom. But I wanted a simple bench for the area. My solution was a wall mounted bench. This project is simple and does not require many tools. Here is how to build a floating bench for your room.

DIY floating bench for mudroom


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Find the list of tools we use.


Here is our mudroom before assembling the floating bench, see our full mudroom room tour here.

mudroom before floating bench


This title probably sounds funny, but you need to get the wall ready for the bench. Prepping the wall is done by determining where the studs are in the wall plus how high you want the bench. The best way to decide on the height of the bench is to measure the height of your favorite chair. I choose to have the height of our bench to be 19″.

Next you need to subtract the width of your wood from that measurement, for example, my board is 2″ so my measurement is 17″. This measurement is where you want to mark your wall (floor to measurement).

SIDE NOTE: I purchased rough lumber, not lumber from a standard hardware store (Home Depot or Lowes), so my wood was 2″ thick. The actual size of wood from the lumber store will be 1-1/2″ thick. 

Now that you have that measurement find the studs on the wall. Place a mark where the measurement hits each stud for the length of your bench.

SIDE NOTE: Have you heard of a magnetic stud finder? I decided to try it out, and with this tool and my regular stud finder, I never miss a stud.

After marking each stud, determine what studs will be used to place a shelf bracket to hold the bench in place. These will be used in the next step.

bracket for floating bench


Take one of the heavy-duty shelf brackets and place the 8″ side on the wall where you found the studs. Have the top of the right angle (where the 8″ and 12″ metal pieces come together) sit at the measurement you placed on each stud.

Using a small magnetic level, make sure the bracket is level. Once the bracket is level, mark the screw holes (there will be three).

level bracket for floating desk

Remove the bracket from the wall and using a 1/8″ drill bit, pre-drill the marked holes.

TIP: You will be able to tell if you hit a stud, there will be wood on the bit. And you want to make sure you are on a stud. 

drill holes in wall for shelf bracket

Then add the bracket to the wall using the #12×1-1/4″ black wood screw.

TIP: Use the level again to make sure everything is level. 

SIDE NOTE: I like using a 90-degree attachment!

attach shelf bracket onto wall

Continue this process for all shelf brackets you will be using for your bench.


Now its time to assemble the wood for the bench. Remember you have two 2″x8″ (by your length of the bench) boards that will be attached together.

The first thing you need to do is sand the boards using #120 grit sandpaper; an orbital sander is fantastic for this! Then to make the wood extra smooth, sand the boards with #220 grit sandpaper.

sanding wood for floating bench

Once each board is entirely smooth, wipe the dust off with a dry rag. Then apply a wood stain, we used English Chestnut by Minwax.

After letting the stain dry, I applied 100% Tung Oil to protect the wood. See why Tung Oil is my favorite wood finish on this post.

When the Tung Oil has dried, the boards are ready to be attached by using the tie plate and 3/4″ metal to wood screws.

wood for floating bench

Clamp the two boards together so that the ends are flush, if you do not have clamps see the tip below.

TIP: Instead of clamps, place one of the boards on a flat surface against a wall (a corner wall would be better). Then put the other board next to this board, making sure the ends are flush. You will be using the wall to push the two boards together. 

Take a tie plate and place it centered between each board plus about 3″-5″ from an end of the boards.

SIDE NOTE: You do not want a tie plate placed where a shelf bracket is, so be mindful of placement. 

add tie plate for floating bench

Attach the tie plate to one board using four 3/4″ screws. Then push the two boards together (if not using clamps) and attach the tie plate to the other board using four more 3/4″ screws.

TIP: When pushing boards together make sure they are still flush at the ends and still laying flat on the surface. 

Continue this process for all the tie plates.

After place the wood onto the shelf brackets, the tie plates will be facing down. Center the wood, then attach the shelf brackets to the wood using the 3/4″ screws.

how to build a floating bench

And that’s how you can create a floating bench in your home. This project cost us about $50 and took a couple of days to finish because of the dry times.

But I LOVE how easy it was to build a floating bench in my mudroom, and I hope this will help you add more seating space to your home.

build a floating bench