How to Build a Freestanding Storage Bench

Using a table saw, make your cuts to the sheet of MDF. Be sure to wear a mask to protect from particles. Sand edges if necessary and wipe clean with a tack cloth. 

Lay out the bottom, one side, and back board for the bench. Run a bead of wood glue along two edges of the bottom piece as well as where the side and back will meet. Stand the back board perpendicular to the bottom piece and butt the side board against it to create a 90-degree angle. Clamp in place with a corner clamp.

Working quickly, drill pilot holes six inches apart along your glue joints, while pressing the boards firmly together. Once the holes are drilled, screw in 1-1/4-inch wood screws. Repeat the gluing and drilling process with the other side piece, followed by the front panel. You should now have a box without a top.

Once the box is assembled, measure and cut trim pieces to size. Place wood glue on the back of the trim pieces. Press onto the front of the box, adding a vertical trim piece to each side as well as the center. Place remaining trim pieces horizontally between the vertical trim pieces to line the front edges. Secure each piece in place with a nail gun and 1/2-inch brad nails.

Use wood putty to fill any holes from the nails or gaps in your seams. A putty knife will make the application process a breeze. Once the putty has dried, sand it smooth, and gently wipe clean with a tack cloth. 

Once the surface is smooth, apply the first coat of paint. We used a miniature roller brush then touched up with a brush. Apply at least two coats of paint, allowing it to dry between coats as needed. Finish with a clear spray sealer. Don't forget to paint the lid, too! The lid is the 3/4 x 18-1/2 x 47-inch board; it will be attached in later steps. 

Once the paint has dried, turn the box over and mark location of feet mounting brackets per manufacturer instructions. Attach the brackets, then install the feet and turn over to test for level.

Lastly, you will install the lid. Center the piano hinge on the long side of the lid. Install per manufacturer instructions, with half on the box edge and the other on the lid. Next, install lid supports on either end of the lid per manufacturer instructions. Finish by topping the bench with a cushion or pillows, if desired.