How to size your pillow covers and inserts

In most cases, for square pillows, I recommend 20x20 or larger pillow covers. For lumbar pillow covers, I typically recommend 11x22 or larger. My personal favorite sizes are 14x20 lumbars and 22x22 squares, but the perfect size for your needs is dependent on scale, location, and other factors.

Pillow covers need a slightly larger insert for a full look. (No wimpy pillows ever!) Here are suggested combinations for pillow cover and insert sizes:


17x17 cover --> 18x18 insert

18x18 cover --> 20x20 insert

19x19 cover --> 21x21 insert

20x20 cover --> 22x22 insert

21x21 cover --> 23x23 or 24x24 insert

22x22 cover --> 24x24 insert

24x4 cover --> 26x26 insert

26x26 cover --> 30x30 insert


11x15 cover --> 12x16 insert

11x17 cover --> 12x18 insert

11x19 cover --> 12x21 insert

11x22 cover --> 12x24 insert

13x18 cover --> 14x20 insert

13x20 cover --> 14x22 insert

13x33 cover --> 14x36 insert

13x44 cover --> 14x48 insert

13x54 cover --> 14x60 insert

14x20 cover --> 15x22 insert

14x28 cover --> 15x30 insert

15x24 cover --> 16x26 insert

15x33 cover --> 16x36 insert

Pillow covers are measured from inside seam to inside seam. Once they are stuffed with an insert, the finished dimensions will usually be an inch or two smaller.

* Each of the lumbar inserts listed here can be found at online retailers. I try to keep on top of what sizes are readily available, then I offer corresponding pillow cover sizes, to make it easy for you.



In most cases, I recommend down/feather inserts. I like 10% down/90% feather inserts, which are firm, yet soft. They work well if you like a "pillow chop." You can go higher on the down percentage as well, and they get softer as you go up. Faux down is the next best, if you have allergy issues.

If your insert has lumps and bumps, please replace it!

Usually the best way to find the size inserts you need is to do an Google search. Just type "15x22 pillow insert" into the search bar, for instance. Email me at if you need insert help.