1/4" plywood or luan
Old thick bath towel
3/4 yard of 44"/45" fabric (I used a med weight decorator fabric)
Thread to match fabric
General sewing supplies: needles, pins, scissors, ruler, sewing machine, iron, cutting mat & rotary cutter (optional)
NOTE: If you will be making your board a larger size than mine, take that into consideration when choosing fabric. With my board being 16" from top to bottom, this allows plenty of excess fabric to fold to the back. If making a much bigger board, you will need to choose a fabric that is bigger than 44/45 inches.
Cut your plywood to desired size. I had mine cut 16" x 23" If you don't have the tools to cut the wood, your home store or a friend can do this for you.
Fold the old bath towel in half and lay your plywood on top with the bottom edge of plywood (the 23" long edge) at the fold of the towel. Cut the fabric about 1" away from the plywood along each side, and the upper edge.
TIP: This is something you will want to do outside because the little loops in the terrycloth will be all over the house. Be sure to shake it good after cutting.
Turn right side out and slip the board inside as if you were stuffing a pillowcase. I just slip stitched the open edge closed. I used large stitches with contrasting (heavy duty) thread so that I will be able to remove them quickly if I ever need to launder this piece. These stitches will never show.
Since different towels are different weights, or in the event that you cut your board a different size than I cut mine, wrap a tape measure around the board/towel along the widest edge, but don't pull tight. Mine measured 50" so I divided that by two and added an inch which means I'll be cutting my fabric 26" wide. You will be using a 1/2" seam allowance which will give the outer fabric a nice, snug fit.
With your fabric in half so that your selvages are meeting at the top, cut the fabric to your desired width. Mine is 26" wide which gives me a piece of fabric 26" x 45" when opened up.
Fold in half with right sides together (selvages meeting at the top) and stitch each side, leaving the top open.
Trim away about 1/4" from the seam allowance to reduce bulk. You can finish the edge of your seam allowance if you like by running a zig-zag stitch along the edge you just trimmed.
Turn right side out and slip the covered board inside. Flip the excess fabric to the back.
I turned my edges in slightly and stitched the sides to the back of the board. This only took a few minutes and will be easy to remove the stitches when cleaning or replacing this outer fabric. You also have the option of attaching snaps, eye hooks, Velcro, or other fasteners if so desired.