Magnetic snaps are a great way of adding a hidden closure to a handmade bag or accessory, enabling you to achieve a nice professional finish. It’s really important to accurately mark the position to attach them, otherwise they may be off-centre and might not meet properly. The snap parts are attached to the fabric pieces before you construct the finished project as they don’t have a finished back – the back parts will then be hidden between the main and lining layers of the project.
So, if you’re using a magnetic snap for the main closure top edges of a bag, you need to attach the parts to the front and back lining pieces of your project; these will be either the main body lining or the interior top band panels. If the bag or accessory has a flap closure, you need to add one half of the snap to lining side of flap and the other half of the snap to the outer front section of the project.
Step 1: Once you’ve added any required fusible interfacing (or pinned sew-in interlining) to the wrong side of the fabric, use a ruler to measure how far down from the top edge you want the snap to be and then find and mark the centre point, across the width of the fabric. Mark this point with a small dot (fabric marker, chalk or pencil). Place the snap backing plate on right side of fabric, with centre hole at the marked dot and mark the two slits.
Repeat the above process to attach the other half of snap to the opposite bag section.