Euro pillows are square-shaped pillows that are commonly used for decorative purposes on beds, sofas, or chairs. The standard size of a Euro pillow is 26 x 26 inches, which is larger than a standard pillow (20 x 26 inches) and a king pillow (20 x 36 inches) . The extra width of a Euro pillow helps it cover the pillows behind it, creating a visually appealing look. Euro shams, which are decorative coverings designed to fit over Euro pillows, also typically measure 26 x 26 inches. However, some shams may be slightly smaller than their inserts to achieve a more plush look. When selecting a Euro sham, it is important to consider the size of the Euro pillow and the desired aesthetic for your space.

It is worth noting that the size of the Euro pillow insert should be slightly larger than the sham itself to ensure a full, plump appearance. While the traditional size of a Euro pillow is 26 x 26 inches, a 28 x 28 inch pillow form is recommended to completely fill the sham and prevent the edges from looking sloppy. The fill of the pillow also matters, with down or feather inserts being preferred over poly or cotton fiber fill for a softer, fluffier look.