Pull the plastic out from the tissue slot, if there is any. If your tissue slot is an oval, you might want to stick masking tape across the sides and bottom to make it a rectangle.
Choose a nice fabric for the outside, such as patterned cotton, linen, or even curtain/upholstery fabric. Choose plain cotton or muslin fabric for the inside.
Use a thread color that matches the outer fabric, and a bobbin color that matches the lining.
Choose a color that goes well with the outside fabric. It can match the print, or contrast it.
The batting is cut smaller than the fabric pieces. You won’t be able to pin it; try to keep it sandwiched between the inner and outer fabric pieces.
Again, the batting is cut smaller. You won’t be able to catch it with your needle. This is fine because it reduces bulk.
Match this color to your first bias tape color.
Backstitch a few times at the start and end of your sewing. This will prevent the thread from unraveling.
If your box is a square, then you only need to measure one of the side panels. If your box is a rectangle, then you need to measure one of the shorter panels, and one of the longer panels.
4 pieces of fabric and interfacing for the side panels. 2 pieces of fabric and 1 piece of interfacing for the top panel.
Remove the pins as you sew. Iron the entire panel once again when you are done. This will help “relax” the stitching. [7] X Research source
Press the seams open when you are done.
Sew each of the four sides separately; backstitch at the front and start of your sewing to prevent the thread from unraveling.
