What Is the Standard Pillowcase Size? A Simple Guide for Every Bed

Buying a pillowcase can be hectic. Sometimes it feels too loose, sometimes too tight, and sometimes the pillow keeps poking out from the side. This occurs when the pillowcase size does not match the pillow.

So, what is a standard pillowcase size and measurements? The standard pillowcase dimensions are 20 x 30 inches. This size is designed to fit most standard pillows and is the most common in many homes.

Although this is labeled the standard size, the fit may still vary. Pillow loft, which means how thick or fluffy a pillow is, can affect the fit. A gusseted pillow fit, which has extra side panels, may also need more space. Material choices, such as cotton or percale, can also affect how the pillowcase feels and how well it fits your pillow insert.

In this guide, you will learn about the full bedding size chart, helpful fit tips, and simple notes for DIYers who want to try sewing pillowcases at home.

The Ultimate Pillowcase Size Chart (US Dimensions)

Here is a clear, easy-to-use pillowcase size chart for common US sizes. This table will help you understand the sizes quickly.

What Size Pillow Does a Standard Pillowcase Fit?

• The Loft Factor: Pillowcase dimensions are 2D (flat), but pillows are 3D (thick and fluffy). This means pillow loft is very important. Loft means how high or thick a pillow is. A high-loft down or memory foam pillow needs more fabric. If the pillow is very fluffy, the pillowcase can feel tight and may create a gap or press the pillow too much.
• Gusseted Pillows: Gusseted pillow fit means the pillow has a rectangular side panel around the edges. This makes the pillow thicker and helps it keep its shape. Because of this extra panel, gusseted pillows often need a larger case. For example, using a Queen case for a High-Loft Standard pillow can help avoid compressing the fill and keep the pillow comfortable.
• Closure Types: Closure types also change how a pillowcase fits. An envelope closure has overlapping fabric on the back. It hides the pillow and gives more flexibility in pillow insert size. A zipper closure uses a zipper to fully close the pillowcase and gives a snug and secure fit. Envelope closures, like those found on premium bedding, allow a little more flexibility and are easy to use.

Standard vs. Oxford vs. Housewife: What’s the Difference?

Below is a simple table to help you understand the difference between Housewife and Oxford pillowcases.

Style Tip:
Use Oxford-style cases to boost volume and style in your bed arrangement. No need to buy new pillow inserts!

Pillowcase Fabric Matters: Thread Count, Weave, and Shrinkage

Fabric shrinkage is normal, especially with natural fibers like cotton. Cotton pillowcases can shrink slightly after the first hot wash. That is why it is very important to buy from brands that already account for shrinkage in their cutting dimensions. This helps the pillowcase keep a proper fit after washing.

There are different fabric types to choose from. Percale has a crisp, cool, and matte finish and is best for hot sleepers. For a classic hotel feel, Feather & Stitch NY’s 300 Thread Count Classic Percale Pillowcases stay crisp and fit well, even after washing. Sateen feels silky, smooth, and slightly warmer, with a soft and luminous look. 

If you prefer a smoother touch, Feather & Stitch NY's 500 Thread Count Damask Stripe Pillowcases offer a luxurious drape and sheen often seen in high-end cotton blends. Linen bedding has a more relaxed and textured look compared to cotton and becomes softer over time.

Thread count is important, but it is not the only factor. Fiber quality, such as long-staple cotton, is more important for durability and fit longevity. High-quality fibers help pillowcases last longer and keep their shape better.

Beyond the Bed: Specialty & Decorative Pillowcase Sizes

There are also specialty and decorative pillow sizes to know. Euro shams are usually 26" x 26" and are used for decoration or for sitting up and reading in bed. Boudoir pillows are small, about 12" x 16", and bolster pillows are tube-shaped, mainly used as decorative accents on the bed.

For travel and protection, travel pillowcases’ sizes are often 12" x 16" or 14" x 20". It’s important to check pillow protector sizing so it fits under the main pillowcase without bunching or changing the pillow’s shape.

What Is the Best Stitch for Sewing a Pillowcase?

For the Diyer who wants to make their own bedding, it’s important to understand how pillowcase sizing works. There is a difference between cut size and finished size. To make a standard pillowcase that measures 20" x 30", cut the fabric wider. You’ll need about 40-42 inches. This extra width helps with the "burrito" or tube method in sewing.

You also need to include seam allowance, usually about 1/2 inch, on all edges. In general, pillowcase fabric requirements are around 1 yard for a standard pair, depending on the fabric width. This ensures your DIY pillowcases fit your pillows properly and look neat.

FAQ

Do queen pillows fit in standard cases?

Yes, you can, but the pillow's end will likely poke out unless the case has a deep envelope closure.

Do Cotton Pillowcases Shrink?

Yes, especially cotton pillowcases. Expect about 3–5% shrinkage after the first wash.

Is sham the same as a pillow case?

Shams open in the back and are mainly decorative. Pillowcases open on the side and are meant for sleeping.

Conclusion

You can get a perfect night’s sleep by checking your pillow’s loft. It also helps to know the difference between Standard vs. Super Standard pillowcases. Choosing the right size is only half the work; the fabric matters too. 

Check out Feather & Stitch NY’s cotton pillowcases for a cozy, perfect fit. With options like cooling percale and silky sateen, they’re made to boost your sleep quality.