When shopping for plain throw pillow covers, the goal is to find affordable, durable options that are easy to customize. This guide focuses on solid-colored, 18×18 inch covers that fit standard inserts, suit indoor use, and provide a simple base for DIY projects or everyday decor. Each pick is best for a specific scenario, from quick room refreshes to affordable craft-ready canvases. The table below highlights five solid options you can consider.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Encasa XO Throw Pillow Covers 18×18 | DIY enthusiasts and budget refreshers | Durable cotton canvas with a seamless zipper; great for crafting and easy insertion |
| Thmyo 4-Pack White 18×18 | Bright, clean minimalist spaces | Solid cotton, 4-pack value; machine washable |
| Thmyo 4-Pack Red 18×18 | Accent color pops and seasonal decor | Same cotton build; bold color option in a 4-pack |
| MIULEE 18×18 Linen Beige | Sophisticated, natural texture | Natural linen blend with flange edges for a premium look |
| Sublimation Blanks 4 Pack 16×16 | Double-sided custom prints | Peach skin polyester with hidden zipper; printable on both sides |
Encasa XO Throw Pillow Covers 18×18

Best for DIYers who want a blank canvas. These 18×18 covers come without inserts and are crafted from cotton canvas. The collaborative design includes a color-matched invisible zipper for a seamless appearance, making it easy to insert or remove filler without stressing seams.
- Material: Medium-weight cotton canvas; comfortable for everyday use
- Design: Invisible zipper for a high-end look
- DIY ready: Great surface for HTV, embroidery, or fabric painting
Who it’s for: Home decorators on a budget and crafters seeking a sturdy, paint-ready cover. Best avoid if you need an enclosed insert or a textured pattern. Note that inserts are not included, and repeated sun exposure may cause color fade over time.
Thmyo White 4-Pack 18×18 Pillow Covers

Best for fresh, minimalist spaces that require easy laundry. These 4-pack cotton covers are soft, durable, and machine washable. They are recommended for indoor use and note that cotton may fade with sun exposure, and inserts are not included.
- Material: 100% cotton
- Care: Machine washable in cold water; tumble dry low
- DIY-friendly: Simple solid base for customization
Best use: Neutral white accents in living rooms or bedrooms. Caution: Not ideal for outdoor or sun-drenched areas due to potential fading over time.
Thmyo Black 4-Pack 18×18 Pillow Covers

Choose this if you want a bold, modern base that conceals prints or crafts well. The set includes four black cotton covers that are soft, durable, and easy to care for. They share the same sizing and care guidance as other Thmyo covers.
- Color: Black; 18×18 inches
- Care: Machine washable; avoid bleach
- Limitations: Cotton can fade with sun exposure; not for outdoor use
Best for: High-contrast decor schemes or hiding stains with a dark backdrop. If you prefer a lighter look, consider the white option above to mirror natural light more effectively.
MIULEE Linen Beige Pillow Covers 18×18

Best for a natural, textural look with a touch of elegance. These 18×18 covers feature a linen blend with flange edges for a refined silhouette. They’re suitable for living rooms, bedrooms, and outdoor-patio settings that are sheltered from direct sun.
- Fabric: Natural ramie linen blend; breathable and soft
- Edges: Flange design for a premium feel
- Care: Spot clean or machine wash as recommended by care instructions
Who it’s for: Decorators seeking a calm, earthy aesthetic. Limitation: Linen blends may require gentle care to preserve texture over time.
IEDASING’S CHOICE Sublimation Blanks 4 Pack 16×16

Best for double-sided printing and custom gifts. These white pillowcases are designed for heat sublimation on peach skin polyester. They come with a hidden zipper for clean removal and allow printing on both sides. Inserts are not included.
- Material: Peach skin 100% polyester
- Printing: Double-sided sublimation ready
- Note: 15.7 x 15.7 inches; 16×16 nominal size
Choose this if you want fully customizable canvases for gifts or seasonal decor. Caution: Not suitable for cotton-based inserts; ensure compatible filler material and printer settings for best results.
Buying Guide: Plain Throw Pillow Covers
What size should I buy? Most standard decorative inserts are 18×18 inches, so 18×18 covers fit well. Consider a couple of sizes if you want different looks or deeper inserts.
Which material is best? Cotton covers are durable and easy to wash. Linen blends offer texture and a premium appearance. Polyester sublimation blanks are ideal for custom prints on both sides.
Are inserts included? In many cases, no inserts are provided. Verify insert compatibility with your current pillows or plan to purchase inserts separately.
What about care and maintenance? Machine washing on cold cycles is common; air dry or tumble dry low. Sun exposure can fade colors on cotton covers over time.
Which option is best for beginners? Encasa XO and similar plain cotton covers are beginner-friendly for DIY decor, while sublimation blanks suit home crafters looking to customize.
FAQ
- Q: Do these covers include pillow inserts? A: Most listed items are covers only; inserts are not included.
- Q: Can I customize these covers at home? A: Yes, especially the DIY-ready options with plain fabrics or sublimation blanks.
- Q: Are these suitable for outdoor use? A: Most plain cotton and linen blends are indoor-focused; sun exposure can fade colors.
- Q: What size cushions fit these covers? A: 18×18 inch covers fit standard 18×18 inserts; verify fabric and seam allowances.
- Q: How should I care for linen blends? A: Follow fabric care instructions; typically delicate handling helps preserve texture.
- Q: Can I mix and match colors easily? A: Yes, solid colors pair well with many decor styles and allow quick refreshes.