Cushion Filler Sizes & Shapes: How to Pick the Right One

A beautifully designed cushion cover deserves the perfect filler to bring it to life. The right cotton cushion filler enhances comfort, maintains shape, and gives your space a polished, luxurious feel. A slightly oversized filler gives your cushion a plump, well-stuffed look, preventing a flat or saggy appearance. Here’s a simple guide to help you choose the ideal filler for your cushion covers.

1. Get the Right Size for a Full Look

The key to a well-filled cushion is selecting a filler that is slightly larger than your cover.

  • For Square Cushions: Choose a cushion filler that is about 1 inch larger than the cover size. (Example: A 17”x17” cover pairs best with an 18”x18” filler.)
  • For Rectangular (Lumbar) Cushions: Pick a cushion filler that is 1 inch larger than the cover size. (Example: A 13”x19” cover works best with a 14”x20” filler.)

2. Choose the Right Shape for Your Space

Different cushion shapes serve different purposes:

  • Square Cushions - Versatile and ideal for sofas, beds, and accent chairs.
  • Lumbar (rectangular) Cushions - Are great for layering.
  • Round Cushions - Add a soft, playful touch to structured seating.
  • Bolster Cushions - Work well on daybeds and sofas.

3. Select the Best Filling Material

The filling material determines the feel and durability of your cushion. Here are the most common options:

  • Feather & Down - Luxurious and soft, providing a plush look, but requires fluffing.
  • Polyester Fiberfill - Lightweight, hypoallergenic, and retains shape well.
  • Foam - Offers firm support, great for structured cushions.

Choosing the right cushion filler online ensures your cushions not only look elegant but also feel comfortable and inviting. Whether you prefer a firm, structured look or a soft, relaxed feel, picking the right size, shape, and material makes all the difference.