To build supports for a bed frame, purchase 12 furring strips or white boards that are equal in width to the width of the frame. Line them up equidistant from one another, and connect them with staples and a long piece of cotton fabric.
- Measure the width of the bed frame
Using a tape measure or the manufacturer's specifications to obtain the total width of the bed frame. If you are measuring, measure from the inside of the rails.
- Purchase 12 1-inch boards
Locate the 1-inch-by-4-inch-by-8-inch boards at a local hardware store, and cut them to the width of the bed frame. You can do this measuring yourself, or you can ask the local hardware store to do it for you. Most large chain stores do this at no cost. For a twin or queen-size bed, inexpensive wood furring strips are appropriate. For a larger king-size bed, white board provides more support.
- Lay and attach the slats on the bed frame
Lay the slats equidistant from one another on the bed frame. Place them over the center support if you have one. Next, lay a cotton fabric strip over the boards, running the vertical length of the bed. Staple the strips on each piece of wood to connect them.