Why Floating Shelves?

Floating shelves are one of the most popular DIY projects for good reason — they add display space and storage, look clean and modern, and can be built and installed in a single weekend with basic tools. Whether you want a display shelf in the living room, extra storage in the bathroom, or a herb shelf in the kitchen, the process is largely the same.

What You'll Need

Materials

  • Timber board (pine, oak, or MDF depending on your budget and look)
  • Floating shelf brackets or keyhole brackets
  • Wall anchors and screws appropriate for your wall type
  • Sandpaper (120 grit and 240 grit)
  • Paint or timber stain/oil of your choice

Tools

  • Stud finder
  • Spirit level (at least 600mm long)
  • Drill with bits
  • Tape measure and pencil
  • Saw (if cutting timber to length)
  • Paintbrush or cloth for finishing

Step 1: Choose Your Timber and Cut to Size

Standard floating shelf depths range from 150mm (bathroom/kitchen) to 300mm (living areas). For most applications, 19mm–25mm thick boards look substantial without feeling heavy. Have your timber cut to length at the hardware store if you don't have a saw at home — most stores offer this service for a small fee or free.

Step 2: Sand and Finish the Timber

Before installing anything, finish your timber first — it's much easier when it's flat on a workbench.

  1. Sand with 120 grit to remove any rough spots or mill marks.
  2. Wipe clean with a damp cloth and allow to dry.
  3. Apply your first coat of paint, stain, or oil.
  4. Once dry, lightly sand with 240 grit and apply a second coat.
  5. Allow to cure fully before handling (check your product's instructions).

Step 3: Find Your Wall Studs

For shelves that will hold any real weight, anchoring into wall studs is essential. Use a stud finder to locate them and mark their positions lightly with a pencil. Studs in Australian and most Western homes are typically spaced 450mm or 600mm apart.

If studs don't align with your desired bracket positions, use appropriate wall anchors — toggle bolts for hollow plasterboard or masonry anchors for brick and concrete walls.

Step 4: Mark and Install Your Brackets

  1. Hold your shelf against the wall at the desired height and mark the top edge lightly with a pencil.
  2. Use your spirit level to draw a perfectly horizontal line along this mark.
  3. Position your brackets along the line, spacing them no more than 600mm apart (less for heavy loads).
  4. Mark screw hole positions through the bracket holes.
  5. Drill pilot holes at each mark, then screw brackets firmly into place.
  6. Check brackets are level again after tightening.

Step 5: Attach and Secure the Shelf

Lower the shelf onto the mounted brackets. Most floating shelf brackets have a lip or channel that grips the shelf — some require screwing up through the bracket into the shelf base. Drive screws at an angle up through each bracket into the underside of the shelf to secure it firmly.

Give the shelf a firm downward push and a side-to-side wiggle to confirm it's solid before loading it with anything.

Weight Limits: What Can Floating Shelves Hold?

The weight a floating shelf can bear depends on your bracket type, number of brackets, fixing method, and wall structure. As a practical guide:

  • 2 brackets into studs: typically handles 20–30kg comfortably.
  • Anchors into plasterboard only: keep loads light — books, small plants, decorative items.
  • For heavy loads (large book collections, kitchen items): space brackets every 400mm and always fix into studs or masonry.

Well-built floating shelves are one of the most satisfying DIY projects you can complete — functional, affordable, and immediately visible every day.