Introduction
Measure the Area
Place a level on the side rails of the bed box, and add some shims until the box is raised up just enough to be level. Once the bed box is level, measure the distance between the floor and the bottom of the bed box. Be sure to press the measuring tape to the floor surface (especially if on carpet) to be as accurate as possible.
Step 1
Cut the MDF
Use the saw to rip the MDF to the correct measurement for the width. Cut the front and bottom pieces according to the measurements needed.
Step 2

Cut the End Pieces
For the two end pieces, cut the profile of the footboard using a circular saw for the long cuts and a jigsaw to finish. Use the jigsaw to cut out a notch where the trim at the top of the moving wall will rest. Use the first piece as a template for the other end.
Step 3

Add the Support Block
To assemble the footboard, start with the board that will be the back of the box. Add a support block to help hold the board to the bottom. Glue and brad-nail the support in place.
Step 4

Attach the Casters
Attach casters to the underside of the bottom board. At this point, only put screws in two of the holes.
Step 5
Attach the Back Board
Attach the back board with the support block to the bottom. Use clamps to secure the two boards together, and pre-drill the remaining holes in the casters. Use 2-1/2" screws through the casters to draw the support block tight. Pre-drill and add screws along the edge between the casters for additional strength.
Step 6
Hold All the Pieces Together
Lay the front piece down and use bar clamps to hold all three pieces together. Add long screws through the caster holes and in between. A three-sided structure has been created.
Step 7
Place a Decorative Panel
Attach the end panels. Place a decorative panel over the end and hold it in place with wood glue and brad nails. Use a countersinking bit to pre-drill holes. The holes will be countersunk to be hidden from view.
Step 8

Secure the Panel
Secure the panel with 2" wood screws. Measure up 1-3/4" from the bottom of the end boards to make sure the screws are precise. Turn the unit around and repeat the steps.