(2) 8 x 10 exterior fabric pieces
(2) 8 x 10 lining fabric pieces
(4) 8 x 10 in pieces interfacing
(1) 12 inch zipper
(2) 3 inch pieces of linen or twill tape (for zipper pulls)
6 x 4.5 x3 (length x width x height)
**For this tutorial, the pink print is my exterior and the purple solid is my lining. I thought it would be easier to distinguish the two in the photos if I used a print + solid rather than two prints**
1. Iron interfacing on the back of your exterior and lining pieces. All four pieces should have interfacing because it's what supports the boxy shape of the pouch.
2. On the front and back of the exterior fabric, draw a line with a water-soluble pen 1/2" away from the edge of the fabric. Do this for the left and right sides (but not the top or bottom). This line will show you where to stop and start your stitches when you start sewing.
3. Layer as follows: 1 lining panel - right side up, zipper - right side up (center it over the lining panel), exterior panel - wrong side up.
4. Using your zipper foot, sew layers together about 1/8" away from the teeth of the zipper. Stop and start on the 1/2" marks. This is important! If you go over this line even by a little bit, rip those renegade stitches out!
5. Fold the lining and exterior panels back and iron the seam.
6. Topstitch about 1/8" from the edge, stopping and starting on the 1/2" mark you made in Step #2.
7. Repeat Steps #3-6 for the other side. You will order the fabric the exact same way as in Step #3 (see picture below).
8. Once you've topstitched the other side, fold the lining and exteriors panels right sides together. The two lining panels will be facing eachother and the two exterior panels will be facing eachother. Pin along the bottom side only and sew a 1/4" seam from end to end of the exterior panel (you can ignore the 1/2" lines this time). Do the same for the lining panels, except leave about a 2 1/2" opening in the center. I like to double pin at the beginning and end of the opening so I know where to stop and start sewing. You have to have this opening in order to turn the bag right-side-out at the end.
9. Pull the lining panels out so that the bottom seam you just sewed is centered over the zipper. Finger press the edges so it lays flat.
10. Repeat for the exterior panels, and then iron all the folds in place so the bag lays nice and flat.
11. Now here's the tricky part. On the side of the zipper without the pull, fold one piece of twill/linen tape in half and pin it so that it's centered over the zipper (the looped end will be facing in) and the ends of the linen tape are lined up exactly with the raw edge of the fabric. When you pin the linen tape, be sure not to catch any of the lining.
12. Flip the bag over, pull the lining up and away from the exterior panels, and sew a 1/2" seam. Be careful not to catch any of the lining fabric in your seam, because if you do, it will be difficult to make your boxy corners at the end.
Flip the pouch over and repeat for the lining, pulling the exterior fabric up and out of the way so that the seams remain separate.
13. Turn and repeat Steps #11-12 for the other side, but before you pin the linen tape in place, open the zipper about 2/3 way. Otherwise, you won't be able to fully turn your bag right-side-out at the end (and believe me, it's very frustrating when you forget to do this, because I've done it several times before!)
14. When you're finished, the seams should look like the picture below. The lining and exterior panels will be completely separate from eachother. You have to be able to pull them apart because of the way the boxy corners are done.
15. Trim the seam down to 1/4" to reduce bulk and get rid of the excess zipper. Your bag should now look like this:
16. Pull one of the corners out as demonstrated below.
17. Measure 1 1/2" inches down from the tip, and 3" across. Draw a line with your marker using the bottom of the ruler as your guide. Make sure the line is straight, or else the corner seams of your finished pouch will be diagonal instead of straight up and down.
18. Pin the corner in place and sew directly over the line you drew. It can take some wrangling, but make sure the fabric is lying completely flat (esp on the bottom side). If the fabric is bunched up and you sew over it, your corner fabric will be pinched on the outside and it doesn't look very nice! Repeat Steps #17-18 for the remaining 7 corners.
19. Once you've sewn all 8 corners, trim down to 1/4" seam. I wait until the end to trim all my corners, because if I discover I've messed up somewhere along the way, I can rip out the seam and fix it. But once you cut those corners off, there's no going back and you'll have a rather odd-shaped hole in your fabric! Once you trim the corners, your bag should slightly resemble Kirby..haha!
20. This is the last step before you'll turn your bag right-side-out. You need to sew the lining and exterior together at the zipper. Otherwise there will be a small opening at the base of your zipper on each side. Find your side seams again and smash the corners down a little to make the seam lie as flat as possible. Start your seam about 1/4" above the zipper and end it 1/4" below the zipper.
21. Your bag should now look like this:
22. Find the opening in the lining and pull the bag right-side-out.
22. Once you have the bag right-side-out, but before you push the lining down into the bag, pin the opening closed and either hand sew it closed with a slipstitch or machine sew it right below the edge (1/8" inch or less)
23. Once you're finished with the opening, tuck the lining down into the bag and poke all the lining and exterior corners out with your fingers.
Congratulations! You've made a box pouch!
- If you'd like to keep the lining clean, use some iron-on vinyl on the lining pieces before you start your project. This is especially good if you're going to be using it as a make-up bag.
- If you'd like to make a purse-friendly size pouch, cut your lining and exterior panels to be 8 x 7, and use a 9" instead of a 12" zipper. Follow the tutorial directions with one change. When you get to the part with the corners, measure 1.25" down from the corner, 2.5" across, and mark.
- If you'd like to make a boxy pencil case, cut your lining and exterior pieces to be 10.5" x 3.5". Follow the tutorial directions with one change. When you get to the part with the corners, measure 0.75" down from the corner, 1.5" across, and mark.