18x18" Throw Pillows

122 Ideas by Caroline Patterson

I selected these versatile 18-inch pillows to help you easily refresh your sofa or bedding layers. I prioritized textured linen covers with hidden zippers to ensure a premium look that stands up to daily lounging.

Sonia Amber Knit Throw Pillow Cover 18" x 18" | Unison

Sonia Amber Knit Throw Pillow Cover 18" x 18" | Unison

Set of 4 Throw Pillow Covers, Black Velvet Gold Foil Geometric Print

Set of 4 Throw Pillow Covers, Black Velvet Gold Foil Geometric Print

High-contrast gold foil patterns on plush black velvet create a sophisticated, dramatic accent perfect for adding a glam touch to any sofa.
Throw Pillow Set, White Quilted Grid Texture Rectangular Lumbar

Throw Pillow Set, White Quilted Grid Texture Rectangular Lumbar

The subtle quilted grid texture on these crisp white pillows adds sophisticated dimension to a neutral sofa.
Throw Pillow Covers, Curly Faux Wool Beige Boucle Texture, Set of 2

Throw Pillow Covers, Curly Faux Wool Beige Boucle Texture, Set of 2

The rich, curly faux-wool texture of these beige pillows adds immediate tactile warmth and visual depth to any modern neutral seating.
Throw Pillow Covers, Vibrant Yellow Ribbed Chenille Texture, Set of 2

Throw Pillow Covers, Vibrant Yellow Ribbed Chenille Texture, Set of 2

The vibrant yellow hue and deep ribbed texture of this chenille-like pillow create a cozy, tactile accent for modern living spaces.
Throw Pillow, Black Mudcloth Pattern Geometric Zigzag, Corner Tassels

Throw Pillow, Black Mudcloth Pattern Geometric Zigzag, Corner Tassels

Bold geometric zigzags and oversized corner tassels create a dynamic, global-inspired look for neutral seating.
Throw Pillows, Ribbed Velvet, Gold, Set of 2, Modern Glam Accent

Throw Pillows, Ribbed Velvet, Gold, Set of 2, Modern Glam Accent

Rich mustard velvet pillows bring immediate warmth and a touch of tactile luxury to a cool-toned contemporary sofa arrangement.
Pillow Insert Pair, Plush Fill White Standard Square Pillow Inserts

Pillow Insert Pair, Plush Fill White Standard Square Pillow Inserts

These plush white inserts provide a supportive, full-bodied foundation for any decorative 18x18 pillow cover.
Throw Pillow Insert Set, Plump Overstuffed Sofa Pillow Base, White

Throw Pillow Insert Set, Plump Overstuffed Sofa Pillow Base, White

A clean white square silhouette and a generous overstuffed fill make these inserts a versatile foundation for any cover.
Throw Pillow Covers, Plush Striped Faux Fur Cream White, Set of 2

Throw Pillow Covers, Plush Striped Faux Fur Cream White, Set of 2

Luxurious wide-wale plush stripes add sophisticated depth and tactile warmth to a neutral living room palette.
Throw Pillow Inserts, Set of Four High Loft White Cushion Stuffer

Throw Pillow Inserts, Set of Four High Loft White Cushion Stuffer

These crisp white square inserts provide a plush, full-bodied foundation for your favorite decorative throw pillow covers.
Throw Pillow, High Low Tufted Geometric Pattern, Ivory Diamond Lattice

Throw Pillow, High Low Tufted Geometric Pattern, Ivory Diamond Lattice

Elevate a dark sofa with high-contrast tactile ivory pillows featuring a globally inspired, high-low tufted geometric design.
Throw Pillow, Mustard Yellow Diamond Lattice Tufting, Textured Pattern

Throw Pillow, Mustard Yellow Diamond Lattice Tufting, Textured Pattern

This mustard throw pillow utilizes a raised diamond lattice to introduce high-contrast texture against neutral upholstery.
Throw Pillow, Blue and White Ticking Stripe, Linen Like Texture

Throw Pillow, Blue and White Ticking Stripe, Linen Like Texture

Classic ticking stripes in soft blue offer a timeless coastal charm that pairs beautifully with natural wood furniture.
Throw Pillow, Personalized Photo Collage Grid Layout, Custom Text

Throw Pillow, Personalized Photo Collage Grid Layout, Custom Text

Transform personal milestones into cozy home accents with a custom photo collage pillow featuring elegant typography.
Throw Pillow Covers Set of 4, Wide Ribbed Corduroy Neutral Tonal

Throw Pillow Covers Set of 4, Wide Ribbed Corduroy Neutral Tonal

Wide-ribbed corduroy adds a soft, architectural layer of texture to this earthy, tonal pillow arrangement for a cozy feel.
Pillow Insert, Karate Chop Crease Plump Fill, Square Silhouette

Pillow Insert, Karate Chop Crease Plump Fill, Square Silhouette

This plump white pillow insert features a classic top crease, showcasing its soft yet supportive fill.
Pillow Insert, Down Alternative Fill Cotton Shell, Hypoallergenic Square

Pillow Insert, Down Alternative Fill Cotton Shell, Hypoallergenic Square

This crisp white pillow insert features a plush down-alternative fill and a classic square silhouette for a full, inviting look.
Throw Pillow, Navy Blue Crab Graphic Print, Coastal Woven Fabric

Throw Pillow, Navy Blue Crab Graphic Print, Coastal Woven Fabric

This square throw pillow features a bold navy blue crab graphic against a crisp cream background, perfect for a coastal-themed space.
Throw Pillow, Emerald Green Silk Like Fabric, Slubby Woven Texture

Throw Pillow, Emerald Green Silk Like Fabric, Slubby Woven Texture

The saturated emerald green hue and slubby silk-like texture provide a sophisticated pop of color and tactile interest for neutral sofas.
Pillow Insert Set of 4, Water Resistant Synthetic Fabric, Plump Fill

Pillow Insert Set of 4, Water Resistant Synthetic Fabric, Plump Fill

This plump white pillow insert features a clean square silhouette and a generously filled form that promises to refresh any decorative cover.
Throw Pillow Cover, Light Grey Neutral Pebbled Woven Texture, Piped Edges

Throw Pillow Cover, Light Grey Neutral Pebbled Woven Texture, Piped Edges

Bring subtle dimension to your seating with this pebbled neutral cover, combining a tactile woven surface with a refined light grey hue.
Throw Pillow, Custom Photo Collage & Central Script, Personalized Gift

Throw Pillow, Custom Photo Collage & Central Script, Personalized Gift

Transform cherished memories into home decor with a personalized photo collage pillow that centers your favorite moments beautifully.
Throw Pillows, Olive Green Ethnic Geometric Pattern, Corner Tassels, 2 Pack

Throw Pillows, Olive Green Ethnic Geometric Pattern, Corner Tassels, 2 Pack

Corner tassels and intricate tribal patterns bring a global-inspired warmth to these earthy olive green throw pillows.