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Shop Bay Window Cushions

SKU
CS-112-5C7UD
Custom Bay Window Cushion
Example Size Shown: 46 x 30 x 18 x 3
The product images shown are only representations of your chosen options and may not include all details. They should not be considered exact proofs.
$200.71
Qty
Cushion Shape more details
Template Fee Required more details
Custom Shape (Template Required)
Fill Selection more details
Front Width more details
inches
Back Width more details
inches
Widest Width more details
inches
Center Depth more details
inches
Thickness
Thickness more details
Fabric Selection
Choose a different fabric
Sunbrella Canvas Vellum (5498-0000)

Select from our hundreds of in-stock fabrics or send us your own fabric by selecting Customer Fabric (COMFAB) in our Fabric Gallery.

Welting Option more details
Measurements do not include the thickness of welting, which is approximately 1/4" (.25). Welting can add up to 1/2" (.5) to the overall dimensions of each cushion.
*If cushions need to fit in an exact, confined space, you may need to subtract 1/2" from your width, depth, or height before ordering.
Welting Fabric
Welting Fabric Choice
Match Main Fabric
Welting Fabric Selection
Sunbrella Canvas Natural (5404-0000)
Open Fabric Gallery
Welting Option more details
Measurements do not include the thickness of welting, which is approximately 1/4" (.25). Welting can add up to 1/2" (.5) to the overall dimensions of each cushion.
*If cushions need to fit in an exact, confined space, you may need to subtract 1/2" from your width, depth, or height before ordering.
Welting Fabric
Welting Fabric Choice
Match Main Fabric
Welting Fabric Selection
Sunbrella Canvas Natural (5404-0000)
Open Fabric Gallery
Button Option more details
Button Fabric
Match Main Fabric
Button Option more details
Button Fabric
Match Main Fabric
Button Option more details
Fabric Ties more details
Each fabric tie is 12 to 14 inches in length.
$200.71
Product Overview

Custom bay window cushions are a perfect fit for any trapezoid window seat. Choose from thousands of our fabrics or send us your own.

Bay Window (Trapezoid) Seat Cushions

Indoor bay window cushions can be ordered in any size to fit your spot. If your seating area is a unique or odd shape, simply create a paper template of the desired size and shape, and we will use it to create your special cushion. Bay window cushions are most often trapezoids. If your window seat is a rectangle, please design your cushion from our selection of window seat cushion styles.

Our bay window cushions include a coordinating zipper along the back side, and the finished product will be within ½" of your provided dimensions. Design your bay window cushion with or without decorative buttons and choose from multiple fill types to best suit your needs. You may also add ties to keep your bay window seat cushion in place.

Superior Quality for Indoors

When made with durable, fade-resistant fabric, your bay window cushions can last through years of sunlight, spills, and use. Although designed for outdoor use, solution-dyed acrylic fabrics are soft and stylish enough to use indoors. These fabrics, such as Sunbrella, Outdura, PARA Tempotest, and select Robert Allen fabrics, carry warranties against fading from the sun - an important factor when your trapezoid cushion spends its time in front of a window. Plus, these outdoor fabrics are hard to stain and easy to clean.

How To Order A Custom Bay Window Seat Cushion:

  1. Order fabric samples to make sure the colors in the fabric(s) are what you need.
  2. Take your measurements very carefully. Remember the old carpenters' rule: Measure twice; cut once.
  3. If your cushion is an odd or unique shape, no problem, simply create a paper template for us to make your cushion to the shape you need!
  4. Choose your fabric(s), enter your dimensions, select edge style and fills, and place your order.
  5. We get to work on your beautiful new window seat cushion, and it will arrive on your doorstep in 3 to 4 weeks!

Check out some of our customers' photos of their beautiful new bay window cushions.

Get started with your order today!

View More Information
Product Specifications
Approximate Shipping Weight: 8.00 pounds
Ships in
3 to 4 weeks
Ship method
Standard Ground
Ship cost
Calculated in Cart
User rating

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Trapezoid
Standard trapezoid shape
Half Trapezoid Left
Standard right side with angled left side
Half Trapezoid Right
Standard left side with angled right side
Unique Shape (Template Required)
Requires Cushion Template
Enter the largest measurement for each dimension.
We can create any unique shape cushion using a template provided by you.
A non-refundable $35.00 fee will be added to your cart per template.
Please be sure to read our important Template Information and Directions.

Custom Shape (Template Required)
We can create any unique shape using a template provided by you. ($35 fee will apply.)
Enter the largest measurements for your dimensions.
Please be sure to read our important Template Information and Directions.
Medium Foam (Indoor)
Foam fill is recommended for indoor or protected outdoor applications since water may be retained in the foam cushion for longer periods of time.
CumuPlush + Batting (Indoor/Outdoor)
This filling is recommended for outdoor applications and may also be used indoors. CumuPlush is a special layered blend of dry conjugate fiber and densified polyfiber designed to not retain water and resist mildew. Batting is added to the top and bottom of the CumuPlush to give the cushion an elegant, rounded look. Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1 inch greater than your specified thickness. More Info
Foam + Batting (Button Option) (Indoor)
Foam fill is only recommended for indoor applications since water may be retained in the foam for longer periods of time. Batting is added to the top and bottom of the foam to give the cushion an elegant, rounded look. Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1 inch greater than your specified thickness. More Info
Optimal Comfort (Indoor/Outdoor)
Optimal Comfort fill consists of a foam inner core with a layer of gel memory foam on top and bottom, fully wrapped in batting, enclosed in a liner with zipper. *Please note that we recommend Optimal Comfort for indoor or COVERED OUTDOOR USAGE only and not areas that will be rained on heavily. Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1 inch greater than your specified thickness. More Info
Cushion Width
Measure the width of the cushion at the widest point as the left to right measurement when standing in front of the furniture where the cushion will be placed. We accept whole and half-inch increments only. (Cushions more than 52" wide may show one or more visible seams in the cushion fabric when choosing a vertically directional fabric.) A zipper will be placed along the width of the cushion.
Cushion Width
Measure the width of the cushion at the widest point as the left to right measurement when standing in front of the furniture where the cushion will be placed. We accept whole and half-inch increments only. (Cushions more than 52" wide may show one or more visible seams in the cushion fabric when choosing a vertically directional fabric.) A zipper will be placed along the width of the cushion.
Cushion Width
Measure the width of the cushion at the widest point as the left to right measurement when standing in front of the furniture where the cushion will be placed. We accept whole and half-inch increments only. (Cushions more than 52" wide may show one or more visible seams in the cushion fabric when choosing a vertically directional fabric.) A zipper will be placed along the width of the cushion.
Cushion Depth
Measure the depth of the cushion at the deepest point as the front to back measurement when standing in front of the furniture where the cushion will be placed. We accept whole and half-inch increments only.
3 inches (Most Popular)

Thickness is a matter of personal taste, but there are a few things to consider:
- Our most popular thickness is 3 inches.
- As a general rule, the thicker the cushion, the longer the cushion will provide comfortable support.
- Some fill types are not available for all thicknesses.

Vertical
Directional fabrics will run from front to back (top to bottom)
Horizontal
Directional fabrics will run from side to side (left to right)
Double Welting
Cushion will have double welting (cording/piping) along the seams. All welting is cut on the bias, giving it an angled appearance. Welting Cut on the Bias
No Welting
Cushion will not have any welting (cording/piping) along the seams.
Double Welting
Cushion will have double welting (cording/piping) along the seams. All welting is cut on the bias, giving it an angled appearance. Welting Cut on the Bias
No Welting
Cushion will not have any welting (cording/piping) along the seams.
No Buttons
No buttons will be added
Add Buttons
Add coordinating fabric-covered buttons
No Buttons
No buttons will be added
Add Buttons
Add coordinating fabric-covered buttons
No Buttons
No buttons will be added
Add Buttons
Add coordinating fabric-covered buttons
Box Edge
Cushion will have a seam around the top and bottom edges and is available in a broader range of thicknesses.
All Squared
All 4 corners are squared.
None
No Ties
Standard
Ties on 2 Back Corners (Ties are sewn into the back seam of the cushion. Each fabric tie is 12 to 14 inches in length.)
Double
Ties on 4 Corners (Ties are sewn into the seam of each cushion corner. Each fabric tie is 12 to 14 inches in length.)
Side
Ties on Each Side (Ties are sewn into the side seams of the cushion. Each fabric tie is 12 to 14 inches in length.)