Bed risers lift the level of a bed frame in order to create more storage space under the bed. Commercial, prefabricated risers are often plastic, flat-topped domes. They're reasonably inexpensive, but it's possible to build your own out of scrap timber for even less. Make risers that will lift your bed 15 cm (6 inches), or increase or decrease the height by altering the timber dimensions.
Cut four pieces of timber to 15 cm x 30 cm (6 inches by 12 inches). All pieces of timber should be at least 1.3 cm (1/2 inch) thick.
Assemble the 15 cm x 30 cm (6 inches by 12 inches) timber pieces into a square, with two pieces of timber one end against the faces of the other two. Glue them in place and allow to dry.
Reinforce the square with three finishing nails per joint. Drive the nails through the face of one piece of timber into the centre of the end of the other.
Place the square on a piece of scrap timber at least 2 cm (3/4 inch) thick. Mark the outline of the square using a pencil.
Cut out the square marked by your pencil. Set it on top of your rectangular frame so all edges are flush. Glue in place and allow to dry.
Reinforce the glue with one finishing nail per corner and one finishing nail in the middle of each side. Drive the nails through the timber square and into the edge of the square frame below.
Repeat steps one through six three more times.
Raise up your bed by slipping a riser under each leg.
Improvise risers easily out of household objects such as beams, breeze blocks, bricks or paint cans.