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Shop Window Seat Cushions

SKU
CS-112-CEAHJ
Custom Window Seat Cushion
Example Size Shown: 46 x 17 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.
$152.39
Qty
Cushion Shape more details
Template Fee Required more details
Unique Shape (Template Required)
Fill Selection more details
Liner Option more details
Width more details
inches
Depth more details
inches
Thickness
Thickness
Thickness
Fabric Selection
Choose a different fabric
Sunbrella Canvas Granite (5402-0000)

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

Edge Style more details
Edge Style more details
Edge Style more details
Edge Style more details
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
Fabric Choice
Match Main Fabric
Welting Fabric Selection
Choose a different fabric
Sunbrella Canvas Natural (5404-0000)

Select from our thousands 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
Fabric Choice
Match Main Fabric
Welting Fabric Selection
Choose a different fabric
Sunbrella Canvas Natural (5404-0000)

Select from our thousands 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
Fabric Choice
Match Main Fabric
Welting Fabric Selection
Choose a different fabric
Sunbrella Canvas Natural (5404-0000)

Select from our thousands 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
Fabric Choice
Match Main Fabric
Welting Fabric Selection
Choose a different fabric
Sunbrella Canvas Natural (5404-0000)

Select from our thousands 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
Fabric Choice
Match Main Fabric
Welting Fabric Selection
Choose a different fabric
Sunbrella Canvas Natural (5404-0000)

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

Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric Option
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric Option
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric Option
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric Option
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric
Match Main Fabric
Button Option more details
PLEASE NOTE: We do not recommend the use of buttons if your fill selection includes a liner, as this can compromise the water resistance.
PLEASE NOTE: You will not be able to remove your cushion cover if you select buttons.
Button Fabric Option
Front Corners more details
Corners on main image will not change.
Back Corners more details
Corners on main image will not change.
Fabric Ties more details
Each fabric tie is 12 to 14 inches in length.
For custom tie locations, please contact customer service for assistance.
$152.39
Product Overview

We have hundreds of fabrics to choose from to design your ideal window seat cushion of any size and thickness. If you don't find what you're looking for, you may send us your own fabric. Measurements do not include thickness of welting.

Cushion Source offers a broad selection of high-quality fabrics for your custom window seat cushion, including many from top brands such as Sunbrella, Outdura, and Kravet. Please note that unless you have UV ray-proof windows, we recommend utilizing our collection of fade-resistant outdoor fabrics. All of our custom cushions are made in the USA to our customers' specifications.

View More Information
Product Specifications
Approximate Shipping Weight: 8.00 pounds
Ships in
2 to 3 weeks
Ship method
Standard Ground
Ship cost
Calculated in Cart
Exclusive
This is an exclusive product
User rating

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Rectangle
Standard rectangle shape
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.

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.

CumuPlush (Indoor/Outdoor)
CumuPlush fill is a special layered blend of dry conjugate fiber and densified polyfiber designed to not retain water and resist mildew. This filling is recommended for outdoor applications and may also be used indoors. More Info
*Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1" greater than your specified thickness, as the insert's thickness is slightly larger, making sure you get that taut, filled effect.
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.
*Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1" greater than your specified thickness, as the insert's thickness is slightly larger, making sure you get that taut, filled effect. More Info
RapidDry Reticulated Foam (Indoor/Outdoor)
Reticulated foam is a porous, low-density foam. Lightweight and mildew resistant, reticulated foam is an excellent choice for outdoor settings.
*Thickness measurements are taken seam to seam. The loft on each side of your cushion could be up to 1" greater than your specified thickness, as the insert's thickness is slightly larger, making sure you get that taut, filled effect. More Info
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
Medium Foam + Batting (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/Covered 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
No Liner
Fill Selection only without liner.
Add HydroShield Protective Liner
Fill Selection enclosed with HydroShield protective liner for water resistance.

Our HydroShield protective liner is designed to reduce the likelihood of water soaking into fill inserts, helping to extend their lifespan when used outdoors. This high-performance polyester liner offers superior water resistance, heat stability, and protection against mold and mildew, all while maintaining breathability for long-lasting comfort.
In addition to outdoor use, our HydroShield protective liner can also be used indoors, providing a reliable barrier against spills, moisture, and everyday wear — perfect for maintaining the comfort and appearance of your cushions.
Please Note: Water resistant does NOT mean fully waterproof. Under certain conditions, some water could still penetrate, potentially affecting performance. Avoid settings that expose your cushions to long-standing water or submersion.
Add HydroShield Protective Liner
Fill Selection enclosed with HydroShield protective liner for water resistance.

Our HydroShield protective liner is designed to reduce the likelihood of water soaking into fill inserts, helping to extend their lifespan when used outdoors. This high-performance polyester liner offers superior water resistance, heat stability, and protection against mold and mildew, all while maintaining breathability for long-lasting comfort.
In addition to outdoor use, our HydroShield protective liner can also be used indoors, providing a reliable barrier against spills, moisture, and everyday wear — perfect for maintaining the comfort and appearance of your cushions.
Please Note: Water resistant does NOT mean fully waterproof. Under certain conditions, some water could still penetrate, potentially affecting performance. Avoid settings that expose your cushions to long-standing water or submersion.
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, half, and quarter-inch (.25 or .75) 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, half, and quarter-inch (.25 or .75) increments only.
Vertical
Directional fabrics will run from front to back (top to bottom)
Horizontal
Directional fabrics will run from side to side (left to right)
Box Edge
Cushion will have a seam around the top and bottom edges.
Knife Edge
Cushion will have a single seam around the edges.
Box Edge
Cushion will have a seam around the top and bottom edges.
Box Edge
Cushion will have a seam around the top and bottom edges.
Box Edge
Cushion will have a seam around the top and bottom edges.
Single Welting
Cushion will have single welting (cording/piping) along the seam. 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 seam.
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.
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
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
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
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
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
Squared
The corners are squared.
Rounded
The corners are rounded. All rounded corners have a radius of 4 inches. If you require a different radius, a template will be required. More Info
Notched
The corners are notched. All notched corners have a 4-inch 90-degree angle. If you require a different angle, a template will be required.
Squared
The corners are squared.
Rounded
The corners are rounded. All rounded corners have a radius of 4 inches. If you require a different radius, a template will be required. More Info
Notched
The corners are notched. All notched corners have a 4-inch 90-degree angle. If you require a different angle, a template will be required.
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.)
Inset (4")
Ties Inset 4" from Back Corners (Inset ties are sewn into the back seam of the cushion. Each fabric tie is 12 to 14 inches in length.)