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Mailbox Cover

Mailbox Cover

Charm your neighbors and your postal carrier with this sensational and simple mail box cover. Magnets keep the cover snugly in place, even on the most blustery of days.

Supplies & Materials:

Project Materials or Supplies

  • 30" of 1/2" wide magnet tape.

  • 8 ct. package of round ceramic magnets (3/4" diameter)

  • 1 package of wide single-fold bias tape

  • 5/8 yard heavy-weight nylon fabric.


The designs used in this tutorial include:

-A3386, Milk Can and Lilacs

-X1082, A Branch Alphabet (3in)

Gather Materials:

Measure your mailbox and make a note of the following:
Length from front to back, not including the edge where the front door fits over the body of the box.
From the bottom of the flag side of the box, over the top, to the bottom of the opposite side of the box.
From the bottom of the box to the bottom of the flag when it is down.
From the bottom of the flag to the top of the flag when it is down.
From the edge of the closed cover to the front edge of the flag when it is up.
From the edge of the closed cover to the front edge of the flag when it is down.

Green metal mailbox with a red raised flag on the left side and a silver latch below the flag, shown on a white background.

For the Flag Opening
Using measurements 1 and 2, mark out a rectangle. Measurement 1 will be the bottom edges of the cover and measurement 2 will be the front and back edges of the cover. Add 1/2" (for seam allowances) to each of the four sides.
Use measurements 3, 4, and 6 to make the vertical line for the flag insertion. This will allow the flag to rest comfortably in the "down" position.
Measurement 3 tells you where to start the line, and measurement 4 tells you where to stop. Measurement 6 tells you how far the line should be from the front edge of the cover. Remember to take into account the seam allowances that you added to each edge of the fabric.

Green fabric square with embroidered yellow-green numbers "613" in the center and a white vase with pink flowers embroidered near the bottom right corner.

Use measurement 5 to mark a horizontal line starting at the top of the vertical line, which will allow the flag to comfortably stand in the "up" position. Measurement 5 tells where to stop marking. Remember to take into account the seam allowances that you added to each edge of the fabric.
Place and embroider your designs onto the fabric. I placed the lilacs so that they will be just behind the flag in the down position and the numbers are just above where the flag sits. Cut out the marked rectangle.

Green fabric with partial embroidery of the number "613" using twisted green and red thread with small yellow accents on the right side.

Use a narrow satin stitch to sew around your markings. The stitching should look like two button holes that make an upside-down "L".

Close-up of a green fabric mailbox cover with a stitched vertical and horizontal line in a teal thread forming a corner shape on the left side.


Open up the fabric between your lines of stitching as you would a button hole. Melt the nylon fabric between the stitches with a stencil cutter or soldering iron to fuse the fibers together and create a no-fray edge.

Green fabric square with white embroidery forming an incomplete corner shape, with a needle threaded with dark red and green thread near the top right corner.


On the front and back edges, create a casing for the magnet tape by using the bias tape. Open one folded edge of the tape and place the right side of the tape on the right side of the fabric edge. The crease of the bias tape should be 1/2" from the edge of the fabric. Straight stitch in the crease for the entire length of the front and back edges. 

Close-up of a sewing machine stitching green fabric with floral embroidery. A hand guides the fabric under the needle, working on a seam.


Flip the tape to the wrong side of the fabric, and stitch the edge of the tape down to form the casing. Trim off any extra tape from the end.

Close-up of hands guiding dark green fabric under a sewing machine needle stitching a seam, with machine controls visible above the fabric.


Cut the magnet tape in half and feed it into the casing in the front and back of the cover.

Green fabric piece with embroidered floral designs in pink and white, featuring stems and leaves; hand adjusting a black strap attached to the fabric.


You will put the round magnets in these casings, spacing them equally along the casing. I used a small dowel to push them in as far as I wanted them. I found they fit snugly, and the bias tape stretched just enough to fit around them Stitch between the magnets to keep them in place.

Close-up of hand guiding green fabric under sewing machine needle stitching a straight seam, white sewing machine with control buttons visible above.


Place the cover on your mailbox by slipping the flag through the slot first, then adjusting the rest of the cover over the mailbox and securing into place.

Green fabric mailbox cover embroidered with the number 613 and a white vase holding pink flowers with green stems and leaves.