You might be shopping for new bedding or trying to make your own. Knowing the exact dimensions of a standard size pillowcase is essential for a perfect fit. A pillowcase that’s too big will look sloppy, and one that’s too small won’t fit at all. This guide will give you all the measurements you need, plus tips for choosing the right style and material.
We’ll cover standard pillowcase sizes for different bed types, from twin to king. You’ll also learn about “housewife” and “Oxford” styles, which effect the final dimensions. By the end, you’ll be confident selecting or sewing the perfect pillowcase for your pillows.
What Are The Dimensions Of A Standard Size Pillowcase
The most common pillow size in the U.S. is the Standard pillow. It fits twin and full-size beds. The pillow itself typically measures 20 inches by 26 inches. However, a pillowcase needs to be larger to slip over the pillow comfortably.
A standard pillowcase usually measures 20.5 inches in width by 30 inches in length. The extra length, about 4 inches, is called the “flap” or “overhang.” This allows the pillow to tuck inside neatly. Some designs might have a slightly smaller width, like 20 inches, to create a snugger fit.
Why the Pillowcase is Bigger Than the Pillow
This extra fabric is crucial. It accounts for the pillow’s loft (thickness) and allows for a closure. Without it, you’d struggle to get the pillow in and the case would be stretched tight. The overhang also hides the pillow neatly inside for a clean look.
Standard vs. Queen Pillowcases
Don’t mix these up! A queen-size pillow is larger, at 20 inches by 30 inches. A queen pillowcase measures about 20.5 inches by 30.5 inches, with a longer length to accommodate the pillow. Using a standard case on a queen pillow will be very tight.
Quick Reference: Standard Bed Pillow Sizes
- Standard/Twin/Full Pillow: 20″ x 26″
- Standard Pillowcase: 20.5″ x 30″ (common size)
- Queen Pillow: 20″ x 30″
- Queen Pillowcase: 20.5″ x 30.5″
- King Pillow: 20″ x 36″
- King Pillowcase: 20.5″ x 36.5″
Understanding Pillowcase Styles and Their Dimensions
The style of pillowcase directly impacts its finished size and how much fabric you need. The two main types are Housewife (or Simple) and Oxford.
Housewife or Simple Pillowcase
This is the most basic style. It’s a simple bag with an open end and a hem, sometimes with a flap. The dimensions we’ve discussed (20.5″ x 30″) are typically for a Housewife style. They have a clean, minimalist look and fit snugly.
Oxford Pillowcase
An Oxford pillowcase is known for its decorative hem, or “flange,” around the open edge. This border is usually between 1 to 5 inches deep. Because of this, the overall dimensions are larger.
- For a Standard pillow with a 2-inch flange, the case might measure 22.5″ x 32″.
- The extra width and length account for the pillow plus the decorative border.
Pillowcase Dimensions for All Bed Sizes
Now let’s break it down by bed size. This will help you match cases to your pillows perfectly.
Twin and Full Bed Pillowcases
Both twin and full beds typically use Standard pillows. Therefore, they use the standard pillowcase dimensions: roughly 20.5″ x 30″. Some people use one pillow on a twin and two on a full, but the size remains the same.
Queen Bed Pillowcases
Queen beds often use queen-size pillows. As noted, the pillow is 20″ x 30″. The queen pillowcase is slightly larger, commonly 20.5″ x 30.5″ to 21″ x 31″. Always check your pillow tag if your unsure.
King Bed Pillowcases
King pillows are long and narrow. The pillow measures 20″ x 36″. A king pillowcase therefore needs to be about 20.5″ x 36.5″ or 21″ x 37″. Some king beds use two standard pillows side-by-side instead of one king pillow.
European Square Pillowcases
These are common for decorative shams. A standard Euro square pillow is 26″ x 26″. The corresponding pillowcase is usually around 26.5″ x 26.5″. They add a layered, luxurious look to the bed.
How to Measure Your Pillow for a Perfect Fit
If your pillow isn’t standard or has become flattened, it’s best to measure it. Here’s a simple step-by-step guide:
- Lay the pillow flat on a bed or table. Don’t measure it while it’s on the bed propped up.
- Measure the width: Use a tape measure from one side seam to the other across the middle.
- Measure the length: Measure from seam to seam along the middle from top to bottom.
- Measure the depth (loft): Place the pillow on its side and measure how thick it is from front to back.
Add 4 to 5 inches to the length for the overhang. For the width, add 0.5 to 1 inch for ease. For example, a pillow measuring 19″ x 27″ would need a case about 20″ x 31″.
Fabric and Shrinkage: Accounting for Size Changes
Natural fabrics like cotton, especially 100% cotton or linen, shrink. If you’re buying or sewing pillowcases, you must think about shrinkage. Pre-washed or pre-shrunk fabric is ideal.
If the fabric isn’t pre-shrunk, you may need to buy a slightly larger size or cut your fabric bigger. A good rule is to allow for 3-5% shrinkage. For a standard case, that means adding an extra inch to both dimensions before sewing can be a safe bet.
Specialty and Decorative Pillowcase Sizes
Not all pillows are for sleeping. Throw pillows and decorative cushions come in many sizes. Here are a few common ones:
- Bolster: Long cylindrical pillow. Cases are measured by diameter and length (e.g., 8″ x 18″).
- Lumbar: Typically 12″ x 24″ or 14″ x 28″. The case is slightly larger.
- Square Throw: Common sizes are 18″ x 18″ or 22″ x 22″.
Always measure your decorative pillow before buying a case. The fit can very from brand to brand.
Choosing the Right Pillowcase Material
Material affects feel, durability, and care. Here’s a quick overview:
- Cotton (Percale or Sateen): Crisp or smooth, breathable, easy to care for. The most common choice.
- Linen: Breathable, gets softer over time, has a relaxed, textured look. Wrinkles easily.
- Bamboo Rayon: Silky-soft, temperature-regulating, and often hypoallergenic.
- Silk or Satin: Smooth, can reduce friction on hair and skin. Requires delicate washing.
- Flannel: Brushed for warmth, ideal for colder climates.
Your choice depends on your priorities: coolness, warmth, softness, or easy maintenance.
Step-by-Step Guide to Sewing a Standard Pillowcase
Making your own pillowcase is a simple sewing project. Here’s how to make a standard housewife style case with a flap.
- Gather Materials: 1 yard of 44″ wide fabric (for one standard case), thread, scissors, pins, sewing machine.
- Cut Fabric: Cut one main piece 42″ long x 21″ wide. Cut one flap piece 12″ long x 21″ wide.
- Hem the Flap: Fold one long edge of the flap piece under 1/4″, then again 1/4″, and stitch.
- Attach Flap to Main: Place the main piece right side up. Place the flap piece right side down on top, aligning raw edges at one short end. Pin and sew with a 1/2″ seam.
- Fold and Sew the Sides: Fold the entire piece in half lengthwise, right sides together, so the flap is inside. The seamed end will be at the fold. Pin the long side and the remaining short end.
- Sew the Seams: Sew these two seams with a 1/2″ allowance. Leave the end with the flap open.
- Finish and Turn: Trim corners, turn the pillowcase right side out through the flap opening. Press with an iron for a crisp finish.
Now you have a custom pillowcase! You can adjust these dimensions for other sizes.
Common Pillowcase Fit Problems and Solutions
Sometimes, even with the right dimensions, fit issues arise. Here’s how to fix them.
Pillowcase is Too Loose
A baggy pillowcase looks messy. This happens if the case is too wide or long for the pillow’s loft. Solution: Use a pillow with higher loft (fluffier) or choose a “tight fit” style case with smaller dimensions. You can also wash the case in hot water if it’s natural fiber to encourage slight shrinkage.
Pillowcase is Too Tight
If it’s a struggle to get the pillow in, the case is too small. This is common when using a standard case on a queen pillow. Solution: Double-check your pillow size and buy the correct case. If you’ve made it, you may need to seam rip and add a fabric panel.
Pillow Won’t Stay Inside
If the pillow constantly slides out, the flap might be to short or non-existent. Solution: Look for pillowcases with a longer envelope flap (at least 4 inches). Some cases have a zipper or button closure to keep the pillow secure.
FAQ: Your Pillowcase Dimension Questions Answered
What is the typical size of a standard pillow case in inches?
The typical size is 20.5 inches wide by 30 inches long. This fits a standard 20″ x 26″ pillow.
Are pillowcase sizes universal?
No, they are not strictly universal. While “standard” sizes are common, there can be slight variations between brands and countries. Always check the product details before buying, especially online.
How much bigger should a pillowcase be than the pillow?
A good rule is to add 4 to 5 inches to the pillow’s length for the overhang. For the width, add 0.5 to 1 inch. This accounts for the pillow’s thickness and allows for easy insertion.
Can I put a queen pillow in a standard pillowcase?
You can try, but it will be very tight. A queen pillow is 4 inches longer than a standard pillow. The standard case will stretch and strain at the seams, and the pillow corners will be cramped. It’s not recommended for a good fit or longevity of the fabric.
What is the difference between a pillowcase and a pillowslip?
They are generally the same thing. “Pillowslip” is an older term, but both refer to the removable cover for a bed pillow. Some people use “pillowslip” to refer to a simpler, less finished style, but the terms are mostly interchangeable.
How do I know if my pillow is standard or queen?
Lay it flat and measure it. If it’s 20″ x 26″, it’s standard. If it’s 20″ x 30″, it’s queen. If you’ve lost the tag, measuring is the only sure way to tell.
Final Tips for Buying Pillowcases
To ensure you get the right fit everytime, follow these final tips. First, always read the product description carefully. It should list the case dimensions and the pillow size it fits. Second, consider buying a pillowcase with your sheets as part of a set. This guarantees a matching look and correct sizing for your bed. Finally, if you have older pillows, they may have compressed. A plush, new pillow might need the full dimensions, while a flat one could swim in the same case. Knowing the dimensions of a standard size pillowcase gives you the power to choose wisely for comfort and style.