Pillow Insert Guide
Choosing the Right
Pillow Insert
The right insert helps a decorative pillow cover hold its shape, fill the corners, and achieve the level of softness or fullness you prefer.
As a general guide, square pillow covers usually work best with an insert that is 2 inches larger than the cover size. Lumbar pillow covers often work best with an insert that is 1 to 2 inches larger, depending on the look you want.
How to Measure a Pillow Cover
Measure the Cover First
For the most accurate fit, measure the empty pillow cover from seam to seam while it is laid flat. Do not measure a filled pillow, since the insert can change the final shape.
Start with the empty cover size, then choose the insert based on the guide below.
Size Guide
Pillow Cover & Insert Size Chart
Use this chart as a quick guide when choosing an insert for a decorative pillow cover.
| Pillow Cover Size | Recommended Insert Size | Shape | Suggested Look |
|---|---|---|---|
| 18 × 18 in / 45 × 45 cm | 20 × 20 in / 50 × 50 cm | Square | Full decorative look |
| 20 × 20 in / 50 × 50 cm | 22 × 22 in / 55 × 55 cm | Square | Full decorative look |
| 22 × 22 in / 55 × 55 cm | 24 × 24 in / 60 × 60 cm | Square | Full decorative look |
| 12 × 20 in / 30 × 50 cm | 14 × 22 in / 35 × 55 cm | Lumbar | Balanced to full look |
| Custom Size | Usually 1–2 inches larger than the cover | Custom | Depends on the desired fullness |
How Full Do You Want Your Pillows to Look?
Relaxed
Use an insert closer to the cover size for a softer, more relaxed look.
Balanced
Use the recommended insert size for a comfortable decorative shape.
Full
A slightly fuller insert helps the pillow fill the corners and create a more tailored appearance.
Insert fit may vary depending on fill material, fill density, fabric weight, and pillow cover construction.
Good to Know
A Few Helpful Notes
Square pillow covers usually look best with an insert 2 inches larger than the cover.
Lumbar pillow covers often use an insert 1–2 inches larger, depending on the look you prefer.
A feather or down-alternative insert may affect how full or soft the pillow appears.
Always check the exact pillow cover size before choosing an insert.
For custom sizes, project quantities, insert availability, or material recommendations, please contact DomiCraft for guidance.
Need Help Choosing an Insert?
Send us the pillow cover size, Ready Style name, or your project requirements, and we’ll help you identify a suitable starting point.