Cord Trim Length for Cushion Calculator

For example, if you sewed up a cushion only to discover that you were three inches short of piping around the last corner, it’s because you measured the finished cushion rather than the route the cord and fabric actualy take. That means you didn’t account for curve of corners. You also forgot about seam allowance and need an extra bit of tail to tuck under at each end.

The calculator figures out numbers for you, sparing you from having to decide whether to leave the join showing or start again from scratch. This knowledge mean that you’ll purchase proper length of cord. How do you know what’s correct? You’re purchasing the distance all the way around your cushion plus the overlap needed to ensure a clean finish at each end.

How to Calculate the Right Length of Cord for Your Cushion

Folks tend to think about the trim as if it lay perfectly flat to the edge. They fail to consider additional material needed to make a corner and avoid pucker. To compensate for this, the tool allow you to input an allowance for your chosen overlap. This closes gap between practical upholstery and geometry. It’s important if you want to make something professional looking like boxy seat for a dining chair or throw pillow.

Simple formulas lack complexity of pattern matching. Decorative braids, stripes on the cord: all of these require that you thinks about how the motif lines up at every corner when cutting fabric into straight lengths. Our calculator features a field for the number of visible repeat times so that the final length gets adjusted so motifs is lined up. No one wants a jarring look from having the seam cut right through a diamond motif simply because you could of saved two inches off the trim. When the repeat matches, it won’t matter if the cushion was made with slightly more material then the absolute minimum, it will look like an intentional design versus a hurried patch job.

The one where your intuition fails is part about waste allowance. I know: we imagine ourselves able to cut surgically. But corners don’t line up perfectly, cords stretches just a bit, fabric move. Adding some percentage as a waste lets you account for those real world variables. A simple cushion may only require an additional ten percent, whereas more complicated rounded edges or thick rope trim might calls for fifteen or even twenty. That’s a waste buffer. It is a little insurance policy in case of any small errors, which are mistakes that could ruin an otherwise perfect project. Remember: you can always bring back unused cord, but you can never sew air.

The way supplies are being sold out there matters too. For example, some items come only in long rolls; others by the meter and yet others by the yard. The calculator will round your estimate to whatever purchase unit you choose. For example, if you need 2 and a half yards but they don’t sell that exact length, total will be rounded. If you’re doing a project that requires continuous runs of fabric (window seat or bench cushion for instance), this can be super important to help keep your cost down. It also helps you plan ahead because you know immediately if you should buy in bulk. Nothing is cheaper then a seam running through the center of a long cushion or other item, and that’s why it’s always best to know at the beginning.

There’s also a touch of cord trim, which adds that special polished layer between something that looks like it came off the rack and something that was sewn by you at home. It also help ensure you’ve got right length. When you do, you can really concentrate on the stitchwork instead of wondering if your project will end up short before you’re done.

And then after you’ve cut out the right length, all that’s left is patience and steady hands. Then when you turn that last corner without a hitch, you’ll understand just how worthwhile every second spent doing the math was.