Throw Pillow Sizing: A Complete Guide for the Perfect Fit

Finding the right size for your throw pillows can be the difference between a space that looks professionally styled and one that feels just a bit… off. Whether you're decorating a sofa, layering a bed, or adding comfort to an accent chair, understanding standard pillow cover sizes—and how to pair them with the correct inserts—is key. In this complete guide, we'll break down everything you need to know about throw pillow dimensions and help you achieve that perfectly tailored look.

Standard Square Pillow Cover Sizes

Square throw pillows are the most commonly used shapes for sofas, beds, and sectionals. Here are the most popular sizes and their best uses:

• 16x16 inches — Ideal for layering or small chairs.
  
  

• 18x18 inches — The go-to size for most sofas.
  
  

• 20x20 inches — Offers a fuller, more upscale look.
  
  

• 22x22 inches — Great for oversized cushions or casual lounges.
  
  

• 24x24 inches — A bold choice for large sectionals or floor seating.
  
  

💡 Pro Tip: For a plush, full look, always use pillow inserts that are 2 inches larger than your cover.

Rectangular (Lumbar) Pillow Sizes

Lumbar pillows provide both back support and visual contrast. They’re especially useful in layered arrangements:

• 12x20 inches — Compact and versatile; fits anywhere.
  
  

• 14x20 inches — A modern favorite.
  
  

• 14x24 inches — A little extra width for deeper sofas or beds.
  
  

🛋️ Use lumbar pillows in front of square pillows to add depth and dimension.

Euro Sham Sizes

Perfect for beds, euro shams are large square pillows that bring a soft, luxe hotel feel:

• 26x26 inches — The standard size for euro shams.
  
  

They’re usually placed at the back when layering bed pillows and provide support as well as elegance.

Insert-to-Cover Sizing Rule

To avoid saggy or flat-looking pillows:

💡 This sizing trick gives you that full, structured designer look you see in magazines.

Choosing Sizes Based on Room Type

🪑 A mix of square and lumbar shapes adds movement and depth to your setup.

Where to Shop the Right Sizes

At Pillowhan, we offer throw pillow covers in a wide range of standard dimensions—from compact lumbar shapes to oversized squares. All covers are zippered and easy to clean, designed for stylish everyday living.

👉 See all available sizes and shop now

Conclusion

Perfect pillow sizing is both art and science. With the right dimensions, your pillow arrangement becomes a design element in itself—adding texture, balance, and intentionality to your home. Bookmark this guide and return to it whenever you're styling a new space, replacing inserts, or updating your pillow cover collection.