The Ultimate Guide to Throw Pillow Covers: Sizes, Fabrics, and Custom Printing

The right throw pillow covers do more work than most people give them credit for. They protect your pillows, let you update your decor without replacing anything, and — when custom printed — can reflect your personal style or carry your brand. The wrong size, fabric, or print method, though, and they either look cheap or wear out fast.

We've supplied cotton twill pillow covers to interior designers, Etsy sellers, wholesale buyers, and home decorators for years. This guide covers everything that actually matters when choosing throw pillow covers: fabric, sizing, custom printing, care, and wholesale options.

Why Throw Pillow Covers Matter

Throw pillows themselves rarely wear out — the fill stays comfortable for years. What degrades is the cover: fabric fades, prints crack, seams fray. Covers that are separate from the insert mean you can replace, rotate, or update the look of a room without buying new pillows every time. A well-edited collection of covers — different seasons, different occasions, different color stories — is far more versatile than a fixed set of finished pillows.

There's also a practical argument. Covers that zip off and go in the washing machine are more hygienic than pillows washed as a unit. Throw pillows on a sofa are touched constantly — by hands, pets, children. A washable cotton twill cover handles that reality better than any decorative fabric that requires dry cleaning.

Choosing the Right Fabric

The fabric choice determines how the cover looks, how it feels, how it launders, and how well it takes decoration. For everyday use, the practical options are cotton twill, linen, velvet, and satin. Each has a different use case.

Cotton twill is the strongest all-around choice for throw pillow covers that will be used, washed, and possibly custom printed. The diagonal weave gives it a subtle texture that reads as more refined than plain cotton, and the fabric accepts DTG and screen printing with clean, vibrant results. Our pillow covers are 100% cotton twill with hidden zippers — finished to look retail-ready before any decoration is added.

Sizes, Inserts, and How to Get the Right Fit

Getting the size right is the most commonly misunderstood part of buying throw pillow covers. The cover size is not necessarily the same as the insert size you want — and the relationship between the two determines whether your pillow looks full and structured or soft and relaxed.

Standard Sizes

Squishy vs Firm Fit

There are two ways to size a throw pillow cover relative to the insert, and the choice changes the entire look of the finished pillow.

Exact match (squishy fit): Order a cover the same size as your insert. The pillow is soft, moldable, and relaxed — good for napping, casual spaces, and pillows that will be used heavily rather than just displayed.

Smaller cover (firm fit): Order a cover 1–2 inches smaller than your insert. A 20×20 insert in an 18×18 cover, for example, produces a plump, full pillow that holds its shape and looks structured on a sofa. This is the classic "styled" throw pillow look seen in interior design photography.

Arranging by Size on a Sofa

On a standard 3-seat sofa, the most balanced arrangement is one or two 20×20 covers at the back corners, 18×18 covers in front of those, and a 12×20 lumbar pillow at the center. This creates a cascading stack that looks intentional rather than random. Solid colors or subtle patterns work best for the larger back pillows; bolder prints and custom designs stand out best at the front where they're most visible.

For a 2-seat sofa or loveseat, scale down: 18×18 at the back, 16×16 in front. Avoid going below 16×16 on a sofa — smaller pillows tend to look like lost accessories rather than design elements.

Custom Throw Pillow Covers

Custom printed throw pillow covers are one of the most accessible ways to add genuinely unique design to a space — or to build a product line for retail or wholesale. The same 100% cotton twill blank that works well as a plain cover takes custom printing cleanly, which means the finished product looks intentional rather than like something printed on a generic base.

Common custom applications we see regularly: Etsy sellers printing illustrated designs and quote pillows for retail; interior designers ordering matching sets for client projects; businesses ordering branded covers for lobbies and hospitality venues; artists turning paintings and illustrations into home goods. The minimum for custom printing is 10 pieces per design.

DTG vs Screen Printing for Pillow Covers

DTG is the right choice for most custom pillow cover orders — it handles complex artwork, watercolor illustrations, photography, and designs with more than 4 colors without any additional cost for color complexity. Screen printing is better for simple, high-impact designs where maximum wash durability matters most, such as a bold logo or a single-color pattern repeated across a large batch.

Both methods include a free digital proof before any printing begins. Upload your artwork after ordering, or email it to us directly. We accept PDF, AI, EPS, PNG (transparent background), and TIFF at 300 DPI or higher.

How to Wash and Care for Throw Pillow Covers

Cotton twill throw pillow covers are machine washable — which is one of the main reasons to choose this fabric over velvet or satin for everyday use. The care routine is simple and the covers hold up through repeated washing without fading or losing their shape.

When not in use, store covers folded in a linen closet or drawer. Cotton twill has no special storage requirements — no need for breathable bags or acid-free tissue. Just keep them dry and they'll be ready whenever you want to swap your decor.

Wholesale Throw Pillow Covers for Businesses

Blank cotton twill pillow covers are available with no minimum order, and volume pricing applies automatically at checkout — from $8.00 per cover at single units down to $4.00 each at higher quantities. There's no account setup required and no minimum spend to access wholesale pricing.

The buyers who order in volume from us fall into a few consistent categories. Interior designers and home stagers order blank covers in bulk to have a consistent, neutral base that they or their clients can customize. Etsy sellers and decoration businesses order blanks to embroider, HTV, or screen print in-house. Hospitality businesses — hotels, short-term rentals, event venues — order in quantity for consistent decor across multiple rooms or locations. Retailers order to carry as a product line, often alongside custom-printed versions.

For custom printed orders at volume — 100 pieces or more — contact us before placing your order for wholesale print pricing. We work with repeat wholesale accounts on pricing, lead times, and production scheduling.

Frequently Asked Questions