Before you start this project, decide how big you want your box to be. Then have the timber pre-cut at your local Bunnings. We cut 2 pieces for our sides at 330mm x 385mm, our top and base pieces at 365mm x 385mm. Finally, we cut the back piece at 330mm x 330mm.
A good tip is to label each piece of timber. On the base piece, also mark out where the front, back and sides are.
To get rid of any rough surfaces, run sandpaper around the edges of your timber until they're smooth.
Lie the base piece on your bench and place the back of the box flush against it. Line up the side pieces and tape them to the back piece so they sit in place. Put the third and final side in place and tape it down to create the four sides. Use the nail gun to secure each of the sides securely.
Flip the box over so that all of the timber sides are level. Place the base at the bottom of the box and then work your way around the box with a nail gun to make sure the sides are connected to the base.
Remove all of the tape from the box. Sand all of the wooden edges to make sure they're smooth. Then insert the storage basket into the box and you're done.