Planter boxes are decorative gardening spaces for your home, patio or garden. You can make a quick and inexpensive planter box out of any size wooden box or crate. Cover your recycled crate planter boxes with copper, tin or metal sheeting and decorate them with mosaic tiles for added color and design. You can find supplies to make and decorate a planter box at your local craft and home improvement stores.
Cut a section of copper to cover the bottom of the inside of your crate or wooden box. This may seem like a waste of copper as it will not be seen, but crates are not made from treated wood and your planter box will last longer if the base is protected. Attach the copper to the wood with waterproof adhesive. Let the adhesive dry.
Drill drainage holes through the bottom of your crate or wooden box and the copper foil. Plants need good drainage, so make several holes in the crate. You can use a 5/8-inch drill bit and space the holes 4 to 5 inches apart. If the bottom of your crate is slatted, you can puncture the copper foil with an awl.
Cut a section of plastic liner to fit inside the crate or box. Attach the liner to the wood with a staple gun. Puncture holes in the liner over the holes you drilled in the wood. If your crate is slatted, make several holes in the liner over the holes in the copper.
Cut a section of copper foil to cover the outside perimeter of your crate. Depending on the height of your crate or box, you may need to layer the copper, overlapping the sheets vertically or horizontally.
Attach the copper foil to the wood with waterproof adhesive. If you overlap the copper horizontally, attach the bottom section of foil first, then layer the top section over it. Fold the copper over the rim of the crate to create a more finished-looking planter box and to keep water from seeping between the copper and the wood. Let the adhesive dry.
Decorate the copper sides with mosaic tiles. Attach the tiles with waterproof adhesive. Let the glue dry.