Finding the right pillow insert can feel tricky, but it’s the secret to a perfect-looking pillow. If you’re wondering what size pillow insert for 12×20 cover, the general rule is to go about 2 inches larger all around. For a 12×20 inch cover, you’ll want a 14×22 inch insert. This ensures a plump, full look without any sagging or empty corners.
Using an insert that’s too small leaves your pillow looking flat and sad. One that’s too big can strain the seams and look overstuffed. Getting the size right makes all the difference in comfort and style. Let’s break down exactly how to choose and use the perfect insert for your decorative pillow project.
What Size Pillow Insert For 12×20 Cover
The direct answer is a 14×22 inch insert. This is the standard recommended size for achieving a professional, full finish. The 2-inch oversize fill rule is a trusted guideline in home decor and sewing. It accounts for the fabric taken up by the seams and gives the pillow its structure.
Think of the insert as the skeleton and muscles of your pillow. The cover is just the skin. Without proper support underneath, it won’t hold its shape. A 14×22 insert compresses slightly to fit into the 12×20 cover, creating tension that results in a crisp, plump appearance.
Why You Shouldn’t Use a 12×20 Insert
It might seem logical to match the insert size to the cover size. However, this almost always leads to a disappointing result. A 12×20 insert will fit too snugly inside a 12×20 cover. It will lay flat and look deflated because there’s no extra fill to create fullness.
The pillow will lack shape and may develop wrinkles in the cover fabric. Over time, the insert can shift and bunch up, leaving empty pockets. For a luxurious, inviting look, the insert must be larger. This is non-negotiable for a high-end finish.
Can You Use an Even Larger Insert?
Sometimes! If you prefer an extremely firm, overstuffed look, you can experiment with a 16×24 insert. This is a 4-inch oversize fill. It will create a very tight, rounded pillow. This style works well for modern, structured decor.
Be cautious, though. An insert that’s too large can put excessive pressure on the cover’s seams, especially if the fabric isn’t sturdy. It can also make it difficult to close an envelope closure or make the pillow feel too hard. Test it out before committing, if you can.
Considerations for Different Closure Types
- Envelope Closure: A 2-inch oversize (14×22) is perfect. It’s easy to tuck in and stays secure.
- Zipper Closure: A 2-inch or 3-inch oversize works well. The zipper provides a strong closure that can handle the pressure.
- Knife-Edge Pillow (No Closure): For a sewn-shut pillow, a precise 2-inch oversize is best to avoid uneven bunching.
The Importance of Pillow Insert Fill Material
The material inside your insert changes how the size recommendation works. Different fills compress and behave uniquely. Here’s a quick guide:
- Down & Feather Blends: These compress a lot. You can often go 3-4 inches oversize (like a 16×24) for a super plump feel that softens beautifully.
- Polyester Fiberfill (Standard): This is less compressible. Stick to the 2-inch oversize rule (14×22) for a good balance of firmness and give.
- Memory Foam or Shredded Foam: These holds a very structured shape. A 2-inch oversize is usually maximum, as it won’t compress easily.
- Microfiber or Down Alternative: Mimics down but is often firmer. Start with 2 inches oversize and adjust based on feel.
Step-by-Step Guide to Inserting Your Pillow
Putting a larger insert into a smaller cover takes a simple technique. Doing it wrong can feel frustrating or even damage the insert. Follow these steps for a smooth process.
- Fluff the Insert: First, vigorously fluff your 14×22 insert. Shake it, punch it gently, and rotate it to distribute the fill evenly. This loosens the material and makes it more pliable.
- Fold the Insert: Lay the insert flat. Fold it in half lengthwise, bringing the two longer sides together. If it’s very full, you might even fold it into thirds.
- Open the Cover: Fully open the envelope or zipper closure of your 12×20 cover. Make sure the opening is as wide as possible.
- Insert the Folded End: Take the folded end of the pillow insert and push it firmly into the far corner of the cover. Get it all the way into that corner.
- Unfold and Adjust: While holding the first corner in place, unfold the rest of the insert and push it into the cover. Shake the pillow and pat it into shape.
- Seal and Finish: Close the envelope flap or zipper. Then, firmly pat and punch the pillow along all seams to distribute the fill. Pay special attention to the four corners, pushing fill into them for a sharp look.
Troubleshooting Common Pillow Problems
Even with the right size, you might encounter a few issues. Here’s how to fix them.
Corners Are Still Empty or Floppy
This means the fill isn’t reaching the tips. Before closing the cover, physically grab handfuls of fill material through the insert’s fabric and pull it toward each corner. You can also try a technique called “karate chopping” the insert along its length before inserting it to break up clumps.
The Pillow Looks Lumpy
Lumps are caused by uneven fill distribution. Remove the insert from the cover and fluff it again thoroughly. Sometimes, especially with cheaper fiberfill, the material can clump. Manually break apart any large clumps you feel inside the insert casing.
The Cover Seams Are Straining
If the fabric is pulling taut at the seams, your insert might be too large for the cover’s fabric strength. You can try a slightly smaller insert (like a 13×21), or choose a cover made from a more durable fabric like linen or canvas next time.
Where to Buy 14×22 Pillow Inserts
While 12×20 covers are popular, 14×22 inserts are a standard size for the bedding and craft industry. You shouldn’t have to much trouble finding them.
- Craft Stores: Stores like Joann, Michaels, and Hobby Lobby often carry this size, especially online.
- Online Retailers: Amazon, Etsy, and Walmart.com have a vast selection. Be sure to read reviews about the insert’s fullness.
- Home Decor Stores: Pottery Barn, Crate & Barrel, and West Elm sell high-quality inserts in various sizes, including 14×22.
- Specialty Websites: Sites like Pillowflex or SureFit focus specifically on pillow inserts and custom sizes.
When shopping, always check the dimensions listed. Some brands might label a pillow as “14×22” but it could be slightly smaller after shipping. Reviews are helpful for checking this. Also, consider buying a insert with a removable cover for easy washing.
Making Your Own Custom Insert
If you can’t find the perfect 14×22 insert, making one is a straightforward sewing project. This gives you complete control over the fill material and firmness.
- Cut two rectangles of muslin or a tight-weave cotton fabric to 15×23 inches. This adds a 1/2-inch seam allowance on all sides.
- Place the fabric pieces right sides together. Sew around all four edges with a 1/2-inch seam, but leave a 5-6 inch opening on one side for turning and filling.
- Clip the corners diagonally to reduce bulk, then turn the insert right side out. Use a chopstick to push the corners out fully.
- Fill the insert with your chosen polyester fiberfill, cluster foam, or down feathers. Stuff it firmly, pushing fill into the corners.
- Once full, hand-stitch the opening closed using a ladder stitch for an invisible seam.
FAQs About Pillow Inserts and Sizes
What if my 12×20 pillow cover is a tight fit already?
If the cover is made from a non-stretch fabric and seems small, you can try a 13×21 insert as a compromise. It will still give a fuller look than a 12×20 insert but won’t strain the seams as much. Always fluff the insert well first to make it as compressible as possible.
How much bigger should a pillow insert be than the cover?
The standard is 2 inches larger in both dimensions. For a 12×20 cover, that’s a 14×22 insert. For an 18×18 cover, use a 20×20 insert. This rule applies to most standard decorative pillows.
Can I use two smaller inserts to fill one cover?
Yes, this is a clever trick for extra fullness or to use up leftover inserts. For a 12×20 cover, you could use two 12×20 inserts. Layer them flat on top of each other and insert them together. This creates a very firm, dense pillow, which some people prefer.
Do pillow inserts shrink?
Some can, especially if they contain natural materials like down or feathers and are washed in hot water. Polyester fiberfill generally doesn’t shrink much. Always follow the care instructions on the insert’s label. To be safe, you might choose an insert that starts slightly larger if you plan to wash it frequently.
Why does my pillow look messy even with the right insert size?
Messiness often comes from not “dressing” the pillow after inserting. Always spend a minute patting, punching, and smoothing the pillow. Pay attention to the corners and ensure the cover’s seams align with the edges of the insert. A good fluffing session can fix a messy appearance.
Maintaining Your Pillows for Long-Lasting Fullness
To keep your 12×20 cover and 14×22 insert looking their best, proper care is essential. Fluff your pillows daily by giving them a few good shakes and punches. This prevents the fill from settling permanently in one spot. Rotate and flip them occasionally if one side sees more wear.
Most pillow inserts have a removable outer casing. Check the label for washing instructions. For down or feather inserts, use a gentle cycle with cold water and tennis balls in the dryer to re-fluff. For polyester fills, low heat is best. Always ensure the insert is completely dry before putting it back in the cover to prevent mildew.
Your pillow cover may need cleaning more often than the insert. If possible, spot clean the cover or follow its specific fabric care instructions. Using a pillow protector between the insert and the decorative cover can also extend the life of both pieces and make cleaning simpler.
Choosing the right insert size is the most important step in pillow styling. Remember, for a 12×20 cover, a 14×22 insert is your ideal starting point. This simple guideline ensures your pillows look professionally decorated, inviting, and perfectly plump. With the right insert and a little bit of fluffing, you can create a cozy and polished look in any room.