Poly / Down Seat Cushion

By Poly / Down we mean a seat cushion with a foam core that is inside a down/feather filled envelope (or jacket).  Old timers refer to polyurethane foam as "poly" and "down" refers to a down and feather blend.  Some common blends for cushions are 10% down/90% feather, 25% down/75% feather (pictured below) and 50% down/50% feather.

We used the original cover (at the top left) as a pattern for cutting the foam.
The finished boxing on the cover is 4" so we used a 4" thick High Resiliency
foam core.  The thickness of the foam is the same as the finished boxing
so that the edges of the foam to line up with the seams of
the cover to hold them straight and tight.

Our down & feather filled jacket is cut a little larger than the finished size
of the cover.  It also includes a crown allowance which allows finished
cushion to be very full and round.  We also sew partitions into the ticking.
This keeps the down/feather in separate channels which helps
the customer to maintain the cushion.  It also allows for the high
crown that is indicative of this type of construction.

A zipper at the back of the cushion makes it easy to access the foam core
for maintenance.

The foam core is inserted into the envelope.

Zipped up.

This cushion has a crown of about 8".  The foam is 4" thick.

The finished cushion ready to be covered.

Knife Edge Pillows - Crown Allowance vs Straight Cut

Before you order your pillow forms, check your cover or with your sewing workroom to see if you covers are cut with a Crown Allowance or are Straight Cut. We make our pillows to order and can accommodate either approach.  Unless we are told otherwise, all of our pillows are cut with a crown allowance (or bow).

Crown Allowance: When a pillow is cut this way is filled, the sides tend to be straighter. 

Straight Cut: When a pillow is cut this way the sides pull in when filled and
the corners become sharper, what we call "dog ears".