Project Overview

A shadow box is a great way to show off decorative items and bring a little colour and personality to your bedroom. We’ll show you everything that you need to make this simple project, including a few tips on how to give it a professional finish.
Continue to step-by-step instructions
How to hammer a nail straight
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How to hammer a nail straight

If your nails keep bending when you are hammering, check the head of your hammer. It could be that the face has picked up some dirt. This causes the hammerhead to slip slightly when it hits the nail. To solve this, give the head a clean by rubbing it on some sandpaper or a bit of rough concrete.

Step by Step Instructions

1 Cut the timber to length
2 Fix the shadow box together
3 Check if the shadow box is square
4 Cut the top fixing rail
5 Attach the top fixing rail
6 Cut the bottom fixing rail
7 Attach the bottom fixing rail
8 Putty up any holes and gaps
9 Stain or paint the shadow box
10 Fix the shadow box to the wall
11 Style your shadow box
  • Step 1. Cut the timber to length

    To start, you’ll need to work out the dimensions of your shadow box. We made our four sides 450mm x 290mm. Mark this out on the timber and use the mitre saw to cut both ends at a 45° angle. Repeat this for the three other sides of the shadow box.

  • Step 2. Fix the shadow box together

    Apply PVA wood glue to the mitred edges of the timber. Join the four pieces of timber together to make the box shape. A good tip is to use masking tape to hold the box together and keep the edges flush. Then use a nail gun to secure the pieces of timber together. Make sure you use a damp cloth to wipe away any excess glue.

  • Step 3. Check if the shadow box is square

    To make sure the box is square, use a tape measure to measure the distance between the diagonally opposed corners. The box is square if the distances are the same. If not, you can make some minor adjustments to square it up.

  • Step 4. Cut the top fixing rail

    Place the piece of 42mm x 19mm timber for the top fixing rail at the back of the shadow box so it’s flush with one side. Mark on the other side of the timber where it needs to be cut, then use the drop saw to cut it to length. We cut our timber to 412mm.

  • Step 5. Attach the top fixing rail

    Apply wood glue to the top and sides of the top fixing rail and press it into place. Use tape to secure it and make sure it’s flush with the edges of the shadow box. Then use the nail gun to secure the rail to the box.

  • Step 6. Cut the bottom fixing rail

    Measure the length of the bottom fixing rail so that it’s the width of the shadow box, in our case it was 412mm again. Cut the rail to length. You might want to mitre the ends of the rail to 30° so that it isn’t visible.

  • Step 7. Attach the bottom fixing rail

    To attach the bottom rail, apply glue to the top of the fixing rail and put it in place against the shadow box. You’ll need to clamp the rail to the box to make sure it’s flush with the edges. Use the nail gun to secure the rail to the shadow box and wipe away any excess glue.

  • Step 8. Putty up any holes and gaps

    Use a putty knife to apply putty to the nail holes and gaps between the timber joints. Let the putty dry and give it a sand so it’s smooth. Then give the shadow box a light sand for the best possible finish.

  • Step 9. Stain or paint the shadow box

    Depending on the look you want for your bedroom, you can stain or paint the shadow box to suit. If you’re applying a stain, to give it a more professional look, wait for the first coat to dry, lightly sand it and then apply a second coat.
  • Step 10. Fix the shadow box to the wall

    After deciding where you want your shadow box to go, have someone hold the box in place while you use the drill and screws to secure it to the wall. Use a spirit level to make sure the box is square before properly securing it through the top and bottom fixing rails. If you’re not attaching the shadow box to studs, use hollow wall anchors to fix it in place.

  • Step 11. Style your shadow box

    Now you’re ready to style your box with your favourite ornaments. 

Tools and Materials


  • Clamps
  • Compound mitre saw
  • Earmuffs
  • Gloves
  • Hammer
  • Measuring tape
  • Nail gun
  • Painters tape
  • Pencil
  • Putty knife
  • Safety glasses
  • Sanding block
  • Set square


  • 290mm x 19mm x 2.4m DAR pine x 2
  • 42mm x 19mm x 2.4m DAR pine
  • 32mm bullet head nails
  • Hollow wall anchors
  • Interior stain
  • Paint brush
  • Putty
  • PVA glue
  • Rags
  • Sandpaper
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Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
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