How to Make Simple DIY Floating Shelve: A Step-by-Step Guide

This is a tutorial for how to make a basic wood 2×4 floating shelves. If looking to build a different style look through our selection of types of floating shelves below.

Project Tool List

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  • Measuring Tape – To measure the wood and mark the placement on the wall.
  • Saw (Circular saw, miter saw, or handsaw) – To cut the 2×4 and shelf boards to size.
  • Drill/Driver – For drilling holes and driving screws into the wall and wood.
  • Drill Bits – Various sizes for pre-drilling holes.
  • Screws (2 ½” to 3″) – To secure the frame to the studs.
  • Stud Finder – To locate the wall studs for mounting.
  • Level – To ensure the shelf is installed straight and level.
  • Pencil – For marking measurements and stud locations on the wall.
  • Sandpaper – To smooth the edges of the wood before assembly.
  • Wood Glue (optional) – To reinforce the connections, especially for the shelf box.
  • Clamps (optional) – To hold pieces together while you screw them in place or apply glue.
  • Countersink Bit (optional) – For making countersunk screw holes, if you want the screws flush with the wood surface.




Step 1: Measure and Cut the Wood

First, determine how long and deep you want your shelves to be. A typical shelf might be around 24 to 36 inches long and 10 inches deep, but feel free to adjust the dimensions based on your wall space and needs. Keep in mind typical home stud spacing is 16″

Cut the Plywood board to the length you want for the shelf

Cut the 2×4 into smaller pieces that will serve as the internal supports. These should be the same length as your shelf.


Step 2: Build the Frame (Support Bracket)

The internal frame or support bracket will be made from 2×4 wood pieces. Measure the length of your shelf and cut the 2×4 to match that length. This 2×4 piece will be mounted to the wall and will act as the main support for the shelf.

Note* cut the sides of your 2×4 to be level and lush to have a flat surface to attach the plywood to.


Step 3: Create the Shelf Box


Now that your support bracket is in place, it’s time to create the hollow “shelf box” that will slide over the frame.
Use wood glue and screws to attach three pieces of plywood or wood together, forming a rectangular box (top, bottom, and front face). The open end of the box will slide onto the mounted 2×4 support.


Step 4: Sand and Finish the Wood


Before you mount the shelf, take time to sand down all the edges for a smooth finish. Sanding removes any rough spots and prepares the wood for staining or painting.
Choose your preferred finish. You can stain the wood for a natural look, paint it to match your decor, or even leave it raw for a rustic vibe.

Finish Before or After?

We’d recommend priming before and painting after install

Stain Before Install Seal After Install


Step 5: Install the Floating Shelf


Once the shelf box is ready and dry, carefully slide it over the mounted 2×4 support bracket. The fit should be snug. You can add screws from the top of the shelf into the support bracket for additional stability.

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