Best Patio Chair Cushions 18x18 in Canada 2025

Updated on 07/17/2025
#1
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  • Perfect Comfort and Support: Our outdoor chair cushions set of 4 pieces measure 18.5" x 16" x 2", offering a perfect fit for most patio and lawn chairs. Filled with 28D high resilience foam, they provide excellent elasticity and support, relieving pressure on your lower back, hips, and sciatic nerve, making them ideal for extended use.
  • Enhanced Waterproof Performance: Made from 250GSM polyester fabric with a double-layer waterproof coating, these patio chair cushions block water from reaching the sponge core, keeping it clean and dry even in harsh outdoor weather. This ensures long-lasting durability, making them the perfect all-weather patio furniture cushions for various outdoor settings.
  • Fade-Resistant Design: Our outdoor couch cushion replacement are treated with advanced fade-resistant technology, ensuring vibrant colors remain rich and vibrant for up to 3 years. The high-quality polyester fabric with coating is designed to resist fading from direct sunlight, rain, and outdoor conditions, maintaining its aesthetic appeal over time.
  • Stable and Removable: Summsun deep seat cushions non slip features two adjustable straps, they will keep your chair cushions exactly where you want them while also ensuring they look great on your furniture. The hidden zipper adds a sleek look while allowing for easy removal of the cushion covers. The covers are machine washable, making cleaning effortless.
  • Versatile and Family-Friendly: These water resistant patio chair pads are suitable for patios, lawns, backyard, dining chairs, rattan chairs, wicker furniture,swimming pool and balconies. We offer sets of 2/4/6 packs, designed for family gatherings and multi-seater arrangements, combining comfort and style, making it a great cushion replacement outdoor for your home.They're also suitable as a good holiday gift for your friends.
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  • Perfect Comfort and Support: Our outdoor chair cushions set of 4 pieces measure 18.5" x 16" x 2", offering a perfect fit for most patio and lawn chairs. Filled with 28D high resilience foam, they provide excellent elasticity and support, relieving pressure on your lower back, hips, and sciatic nerve, making them ideal for extended use.
  • Enhanced Waterproof Performance: Made from 250GSM polyester fabric with a double-layer waterproof coating, these patio chair cushions block water from reaching the sponge core, keeping it clean and dry even in harsh outdoor weather. This ensures long-lasting durability, making them the perfect all-weather patio furniture cushions for various outdoor settings.
  • Fade-Resistant Design: Our outdoor couch cushion replacement are treated with advanced fade-resistant technology, ensuring vibrant colors remain rich and vibrant for up to 3 years. The high-quality polyester fabric with coating is designed to resist fading from direct sunlight, rain, and outdoor conditions, maintaining its aesthetic appeal over time.
  • Stable and Removable: Summsun deep seat cushions non slip features two adjustable straps, they will keep your chair cushions exactly where you want them while also ensuring they look great on your furniture. The hidden zipper adds a sleek look while allowing for easy removal of the cushion covers. The covers are machine washable, making cleaning effortless.
  • Versatile and Family-Friendly: These water resistant patio chair pads are suitable for patios, lawns, backyard, dining chairs, rattan chairs, wicker furniture,swimming pool and balconies. We offer sets of 2/4/6 packs, designed for family gatherings and multi-seater arrangements, combining comfort and style, making it a great cushion replacement outdoor for your home.They're also suitable as a good holiday gift for your friends.
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#2
Value for Money
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  • Comfortable and Supported - Designed with a luxurious 3-inch thickness, these seat cushions for outdoor furniture provide the perfect amount of comfort and support for your patio chairs. Patio furniture cushions with high density whole-piece sponge is not easy to flatten for long-term use.
  • Waterproof Patio Cushions - For better waterproofing, we added a TPU overlay to the back of the original waterproof Oxford fabric to block any water droplets from seeping through the seams of the fabric. In addition to this, the sponge also has a waterproof shell that works well as a waterproofing agent.
  • Stable and Flexible - The non-slip straps ensure that the outdoor furniture cushions stay securely in place, even during windy conditions. The convenient carry handle make outdoor cushions easily portable, allowing you to move and rearrange your outdoor furniture with ease.
  • Easy Care - The removable cover of patio cushions for outdoor furniture can be easily washed, ensuring a clean and fresh seating surface every time. Warm Tips: The cushion covers come folded in a box, are easy to assemble, and then you will get beautiful patio chair cushions!
  • Widely Used - Our outdoor patio cushions are available in two styles: 18 x 18 x 3 Inch with rounded corner and square corner to accommodate your specific needs. Perfect for patio chairs and other outdoor furniture, these outdoor cushions for patio provide optimal comfort and style for you and your family.
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  • Comfortable and Supported - Designed with a luxurious 3-inch thickness, these seat cushions for outdoor furniture provide the perfect amount of comfort and support for your patio chairs. Patio furniture cushions with high density whole-piece sponge is not easy to flatten for long-term use.
  • Waterproof Patio Cushions - For better waterproofing, we added a TPU overlay to the back of the original waterproof Oxford fabric to block any water droplets from seeping through the seams of the fabric. In addition to this, the sponge also has a waterproof shell that works well as a waterproofing agent.
  • Stable and Flexible - The non-slip straps ensure that the outdoor furniture cushions stay securely in place, even during windy conditions. The convenient carry handle make outdoor cushions easily portable, allowing you to move and rearrange your outdoor furniture with ease.
  • Easy Care - The removable cover of patio cushions for outdoor furniture can be easily washed, ensuring a clean and fresh seating surface every time. Warm Tips: The cushion covers come folded in a box, are easy to assemble, and then you will get beautiful patio chair cushions!
  • Widely Used - Our outdoor patio cushions are available in two styles: 18 x 18 x 3 Inch with rounded corner and square corner to accommodate your specific needs. Perfect for patio chairs and other outdoor furniture, these outdoor cushions for patio provide optimal comfort and style for you and your family.
Read More
#3
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  • Luxurious 3-inch thickness for enhanced comfort and support in outdoor furniture.
  • TPU overlay and waterproof shell prevent water leakage, ensuring durability.
  • Non-slip straps keep cushions secure during windy conditions, with carry handle for easy transport.
  • Removable, washable covers maintain cleanliness and freshness of seating surfaces.
  • Available in two styles and dimensions to suit various outdoor furniture needs.
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  • Luxurious 3-inch thickness for enhanced comfort and support in outdoor furniture.
  • TPU overlay and waterproof shell prevent water leakage, ensuring durability.
  • Non-slip straps keep cushions secure during windy conditions, with carry handle for easy transport.
  • Removable, washable covers maintain cleanliness and freshness of seating surfaces.
  • Available in two styles and dimensions to suit various outdoor furniture needs.
#4
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  • Cushion dimensions are 18" W x 18" D x 3" H, available in multiple sizes for various indoor and outdoor furniture including office, dining, rocking, and swing chairs.
  • Constructed from 600GSM synthetic polyester fabric with a PU coating, ideal for moderate rain and everyday outdoor use.
  • Features 30D high-density foam padding for enhanced comfort and support during extended sitting.
  • Made with DuraSeason synthetic polyester, providing 1500 hours of fade resistance to maintain vibrant colors over time.
  • Cover is removable and machine washable for easy cleaning and maintenance.
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  • Cushion dimensions are 18" W x 18" D x 3" H, available in multiple sizes for various indoor and outdoor furniture including office, dining, rocking, and swing chairs.
  • Constructed from 600GSM synthetic polyester fabric with a PU coating, ideal for moderate rain and everyday outdoor use.
  • Features 30D high-density foam padding for enhanced comfort and support during extended sitting.
  • Made with DuraSeason synthetic polyester, providing 1500 hours of fade resistance to maintain vibrant colors over time.
  • Cover is removable and machine washable for easy cleaning and maintenance.
Read More
#5
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  • Size and Package: The size of the outdoor chair cushions is 18.5 X 16 X 3 inches and fits most standard size chairs. As the cushions are vacuum packed, you can press and tap them for a while after unpacking and they will restore fluffy within 24-48 hours
  • Premium Fabric: Outdoor cushions are made of polyester fabric which is water, stain and UV resistant. The fabric can withstand daily wear and tear, but it is recommended to bring them indoors when raining to preserve lifespan and maintain appearance
  • High-Density Foam: The patio furniture cushions are filled with 3 inches thick foam that is soft and supportive, providing effective cushioning and reducing pain in the lower back, tailbone and hips by evenly distributing body weight
  • Two Adjustable Straps: There are two adjustable straps on each side of the cushions to keep them securely fastened to your outdoor chairs and prevent them from sliding easily. The exquisite strap design can provide you with convenience and practicality
  • Easy to Clean: The patio cushions are easy to clean, just spot clean with a damp cloth and hang to sun dry. It will have a better fluffiness and resilience after sun exposure. The cushions are ideal for garden, patio, balcony or other outdoor scenes
Read More
  • Size and Package: The size of the outdoor chair cushions is 18.5 X 16 X 3 inches and fits most standard size chairs. As the cushions are vacuum packed, you can press and tap them for a while after unpacking and they will restore fluffy within 24-48 hours
  • Premium Fabric: Outdoor cushions are made of polyester fabric which is water, stain and UV resistant. The fabric can withstand daily wear and tear, but it is recommended to bring them indoors when raining to preserve lifespan and maintain appearance
  • High-Density Foam: The patio furniture cushions are filled with 3 inches thick foam that is soft and supportive, providing effective cushioning and reducing pain in the lower back, tailbone and hips by evenly distributing body weight
  • Two Adjustable Straps: There are two adjustable straps on each side of the cushions to keep them securely fastened to your outdoor chairs and prevent them from sliding easily. The exquisite strap design can provide you with convenience and practicality
  • Easy to Clean: The patio cushions are easy to clean, just spot clean with a damp cloth and hang to sun dry. It will have a better fluffiness and resilience after sun exposure. The cushions are ideal for garden, patio, balcony or other outdoor scenes
Read More
#6
Free Shipping
  • Comfortable and Supported - Designed with a luxurious 3-inch thickness, these seat cushions for outdoor furniture provide the perfect amount of comfort and support for your patio chairs. Patio furniture cushions with high density whole-piece sponge is not easy to flatten for long-term use.
  • Waterproof Patio Cushions - For better waterproofing, we added a TPU overlay to the back of the original waterproof Oxford fabric to block any water droplets from seeping through the seams of the fabric. In addition to this, the sponge also has a waterproof shell that works well as a waterproofing agent.
  • Stable and Flexible - The non-slip straps ensure that the outdoor furniture cushions stay securely in place, even during windy conditions. The convenient carry handle make outdoor cushions easily portable, allowing you to move and rearrange your outdoor furniture with ease.
  • Easy Care - The removable cover of patio cushions for outdoor furniture can be easily washed, ensuring a clean and fresh seating surface every time. Warm Tips: The cushion covers come folded in a box, are easy to assemble, and then you will get beautiful patio chair cushions!
  • Widely Used - Our outdoor patio cushions are available in two styles: 18 x 18 x 3 Inch with rounded corner and square corner to accommodate your specific needs. Perfect for patio chairs and other outdoor furniture, these outdoor cushions for patio provide optimal comfort and style for you and your family.
Read More
  • Comfortable and Supported - Designed with a luxurious 3-inch thickness, these seat cushions for outdoor furniture provide the perfect amount of comfort and support for your patio chairs. Patio furniture cushions with high density whole-piece sponge is not easy to flatten for long-term use.
  • Waterproof Patio Cushions - For better waterproofing, we added a TPU overlay to the back of the original waterproof Oxford fabric to block any water droplets from seeping through the seams of the fabric. In addition to this, the sponge also has a waterproof shell that works well as a waterproofing agent.
  • Stable and Flexible - The non-slip straps ensure that the outdoor furniture cushions stay securely in place, even during windy conditions. The convenient carry handle make outdoor cushions easily portable, allowing you to move and rearrange your outdoor furniture with ease.
  • Easy Care - The removable cover of patio cushions for outdoor furniture can be easily washed, ensuring a clean and fresh seating surface every time. Warm Tips: The cushion covers come folded in a box, are easy to assemble, and then you will get beautiful patio chair cushions!
  • Widely Used - Our outdoor patio cushions are available in two styles: 18 x 18 x 3 Inch with rounded corner and square corner to accommodate your specific needs. Perfect for patio chairs and other outdoor furniture, these outdoor cushions for patio provide optimal comfort and style for you and your family.
Read More
#7
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  • Our seat cushion measures 18x18x3 inches, larger than the standard size, and fits various chairs.
  • The faux linen fabric is soft, breathable, and cooling, ideal for summer comfort.
  • High-quality cotton filling offers enhanced comfort and pressure relief, available in multiple colors.
  • 13-inch straps and non-slip backing ensure the cushion stays secure on your chair.
  • Suitable for office or home use and complements different home décor.
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  • Our seat cushion measures 18x18x3 inches, larger than the standard size, and fits various chairs.
  • The faux linen fabric is soft, breathable, and cooling, ideal for summer comfort.
  • High-quality cotton filling offers enhanced comfort and pressure relief, available in multiple colors.
  • 13-inch straps and non-slip backing ensure the cushion stays secure on your chair.
  • Suitable for office or home use and complements different home décor.
#8
Free Shipping
  • Outdoor Cushions Dimension:18.5"W x 16"D x 3"H, suitable for a wide range of kitchen or paito chairs; please verify compatibility with your chairs before purchasing
  • High Quality Fabric: These outdoor seat cushions are made of premium oxford fabric which is heavy-duty and durable for lasting performance, it is also easy to clean, just wipe with damp cloth when it is stained
  • Fade/Water Resistant: High water repellency make that the water droplets won't penetrate the fabric; excellent UV resistance and high colorfastness ratings result in prolonged resistance to fading
  • Secure & Stylish Design: Anti-slip straps at back corners are designed to tied to chairs to prevent slippage, and reinforced boxe edges help keep patio furniture cushions well structed and maintain the shape of foam
  • Before Purchase: Our patio cushions are vacuum-sealed for compact shipping, please allow 48 hours for full expansion; the package can cause fabric wrinkles which will gradually decrease with use; please seek our help if you encount any problems
Read More
  • Outdoor Cushions Dimension:18.5"W x 16"D x 3"H, suitable for a wide range of kitchen or paito chairs; please verify compatibility with your chairs before purchasing
  • High Quality Fabric: These outdoor seat cushions are made of premium oxford fabric which is heavy-duty and durable for lasting performance, it is also easy to clean, just wipe with damp cloth when it is stained
  • Fade/Water Resistant: High water repellency make that the water droplets won't penetrate the fabric; excellent UV resistance and high colorfastness ratings result in prolonged resistance to fading
  • Secure & Stylish Design: Anti-slip straps at back corners are designed to tied to chairs to prevent slippage, and reinforced boxe edges help keep patio furniture cushions well structed and maintain the shape of foam
  • Before Purchase: Our patio cushions are vacuum-sealed for compact shipping, please allow 48 hours for full expansion; the package can cause fabric wrinkles which will gradually decrease with use; please seek our help if you encount any problems
Read More
#9
Free Shipping
  • Cushion measures 18"L x 18"W x 3"H, designed for versatility with 13-inch tie straps for secure fitting on various chairs.
  • Made from soft, breathable faux linen fabric for comfort and style, ensuring coolness even in hot weather.
  • Filled with 100% premium cotton for enhanced support and warmth, suitable for extended sitting on both metal and wooden chairs.
  • Features a double non-slip design with straps and a non-slip backing to keep cushions securely in place without damage.
  • Can be used as a dining chair cushion, office chair cushion, bar stool cushion, or floor cushion, available in multiple solid colors.
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  • Cushion measures 18"L x 18"W x 3"H, designed for versatility with 13-inch tie straps for secure fitting on various chairs.
  • Made from soft, breathable faux linen fabric for comfort and style, ensuring coolness even in hot weather.
  • Filled with 100% premium cotton for enhanced support and warmth, suitable for extended sitting on both metal and wooden chairs.
  • Features a double non-slip design with straps and a non-slip backing to keep cushions securely in place without damage.
  • Can be used as a dining chair cushion, office chair cushion, bar stool cushion, or floor cushion, available in multiple solid colors.
Read More
#10
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  • Constructed from high-quality 250g waterproof polyester for durability in outdoor conditions.
  • Filled with 28D high-density shredded memory foam for comfortable support during extended outdoor seating.
  • Includes adjustable ties for secure attachment to chairs, preventing slipping.
  • Features a removable, machine-washable cover for easy cleaning and maintenance.
  • Compressed packaging for easier shipping; cushions expand fully within 24-48 hours after unpacking.
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  • Constructed from high-quality 250g waterproof polyester for durability in outdoor conditions.
  • Filled with 28D high-density shredded memory foam for comfortable support during extended outdoor seating.
  • Includes adjustable ties for secure attachment to chairs, preventing slipping.
  • Features a removable, machine-washable cover for easy cleaning and maintenance.
  • Compressed packaging for easier shipping; cushions expand fully within 24-48 hours after unpacking.
Read More
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