The Complete Guide to Throw Pillow Insert Sizes: How to Choose the Perfect Fit

Finding the Perfect Pillow Insert Size

Choosing the right pillow insert size can make or break your throw pillow game. At The Fluff Haus, we have crafted thousands of custom pillows in our Hickory, North Carolina workshop, and we have learned exactly what makes a pillow look plump, luxurious, and professionally styled.

The Golden Rule: Go 1-2 Inches Larger

The most important tip we can share: always choose an insert that is 1-2 inches larger than your pillow cover. This creates that coveted "full" look you see in designer homes and magazines.

For example:

  • 18x18 inch cover → use a 20x20 inch insert
  • 20x20 inch cover → use a 22x22 inch insert
  • 12x20 lumbar cover → use a 14x22 inch insert

Standard Throw Pillow Sizes

Square Pillows

The most popular sizes for sofas and beds:

  • 16x16 - Perfect for accent chairs
  • 18x18 - Classic sofa pillow size
  • 20x20 - Popular for larger sofas
  • 22x22 - Statement pillows for sectionals
  • 24x24 - Euro shams and floor cushions

Lumbar Pillows

Rectangular pillows that provide back support:

  • 12x20 - Standard lumbar size
  • 14x26 - Long lumbar for wider chairs
  • 16x26 - King bed lumbar

Fill Types: Faux Down vs Polyester

At The Fluff Haus, we exclusively use hypoallergenic faux down fill because it offers:

  • The softness of real down without allergens
  • Better shape retention than polyester
  • Easy fluffing and maintenance
  • Indoor and outdoor versatility

Made in USA Quality

Every pillow insert we create is handcrafted in our Hickory, North Carolina facility. We have been perfecting our craft for years, and our 100+ five-star reviews speak to the quality difference you will feel.

Shop our complete collection of pillow inserts →

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