For a luxurious and full looking pillow, choose inserts that are 1 to 4 inches larger than the cover that you'll be using (see below for specific recommendations).  Usually the larger the cover, the greater the difference between the cover and insert that's required for a full look. Our most popular pillow cover size is 20x20 and we recommend using 22x22 inserts for those. If you're not sure what size your cover is, use our measuring guide. 

We recommend using feather-down blend inserts whenever possible. If allergies are a concern, alternative down blend inserts are the next best option.  

Our general recommendations for what size insert to use for each size pillow cover are below. 

SQUARE

16x16 cover - 16x16 insert

17x17 cover - 18x18 insert

18x18 cover - 20x20 insert

19x19 cover - 21x21 insert

20x20 cover - 22x22 insert

21x21 cover - 23x23 insert 

22x22 cover - 24x24 insert

23x23 cover -25x25 or 26x26 insert (the larger size will give you a fuller look and firmer feel)

24x24 cover - 26x26 or 27x27 insert (the larger size will give you a fuller look and firmer feel)

25x25 cover - 28x28 insert 

26x26 cover - 29x29 insert 

LUMBAR

10x18 cover - 10x18 insert

11x17 cover - 12x18 insert

11x19 cover - 12x20 insert

12x20 cover - 13x21 insert

12x22 cover - 13x23 insert

13x19 cover - 14x20 insert

13x21 cover - 14x22 insert

13x25 cover - 14x26 insert

14x20 cover - 15x21 insert 

14x26 cover - 15x27 insert

14x30 cover - 14x30 or 15x31 insert

14x36 cover - 14x36 or 15x37 insert

14x38 cover - 14x38 or 15x39 insert

14x48 cover - 14x48 or 15x49 insert

 

SEE ALSO: 

Where to Buy Inserts

Sofa Pillow Arrangement and Size Guide

Bed Pillow Arrangement and Size Guide