Deep seat cushions are the seat and back sets made for lounge chairs, sofas and sectionals with a deep frame. They are larger than dining chair pads, so the first job is matching the seat depth and the back height to your frame, not picking a color.

We compared deep seat sets sold for outdoor use on seat and back size, stated foam density, fabric type and coating, zipper and cover details, and warranty. For smaller chair pads, see Best Patio Chair Cushions, or browse the Outdoor Cushions category.

Our Top Picks

PickProduct
Best OverallCOZYVIDA Deep Seat Cushion Set of 2
Best for WarrantyGoodgoods Deep Seat Cushions 2-Pack
Best for Washable CoversGarden lucky Deep Seat Cushions Set of 2
Best for Thick SeatAegisun Outdoor Deep-Seat Cushion Set
Best ValueL'AGRATY Deep Seat Cushions with Backrest
Best for Soft FeelGreendale Home Fashions Deep Seat Cushion Set
1
COZYVIDA's set includes 2 seat cushions at 24 by 27.5 by 4.5 inches and 2 back cushions at 24 by 20 inches, sized for deep seat loungers and sectionals. The seats use 35D high-density foam, the polyester fabric carries a PFAS-free C0 water-repellent finish, and the covers open with YKK zippers. COZYVIDA backs the fabric with a 3-year limited warranty.
Pros & Cons

Pros

  • Two full seat and back sets in one box
  • Deep 27.5 inch seat suits lounge frames
  • YKK zippers and a PFAS-free finish

Cons

  • Water-resistant, not waterproof
  • Ships compressed and needs a day or two to recover
  • Will not fit standard dining chairs
Detailed Review

COZYVIDA's set includes 2 seat cushions at 24 by 27.5 by 4.5 inches and 2 back cushions at 24 by 20 inches, sized for deep seat loungers and sectionals. The seats use 35D high-density foam, the polyester fabric carries a PFAS-free C0 water-repellent finish, and the covers open with YKK zippers. COZYVIDA backs the fabric with a 3-year limited warranty.

Amazon rating: not available in our product data.

2
Goodgoods sells 2 seat cushions at 24 by 28 by 5.1 inches with 2 back cushions at 24 by 20 inches. The seats use 35D high-resilience foam, the fabric is solution-dyed polyester with a water-resistant finish, and the edges are chamfered with full-length concealed zippers. Goodgoods lists a 5-year fabric limited warranty, the longest in this group.
Pros & Cons

Pros

  • Longest fabric warranty listed here
  • Thick 5.1 inch seat
  • Deepest seat in this guide

Cons

  • Backs need 2 to 3 days to fill out, per the maker
  • 28 inch depth fits only deep frames
  • Fewer colors than larger brands
Detailed Review

Goodgoods sells 2 seat cushions at 24 by 28 by 5.1 inches with 2 back cushions at 24 by 20 inches. The seats use 35D high-resilience foam, the fabric is solution-dyed polyester with a water-resistant finish, and the edges are chamfered with full-length concealed zippers. Goodgoods lists a 5-year fabric limited warranty, the longest in this group.

Amazon rating: not available in our product data.

3
Garden lucky's set pairs 2 seat cushions with 2 back cushions of 23.5 by 22 inches. The seats are 5.1 inches thick with 35D high-resilience foam, the fabric is solution-dyed polyester with a C0 no-PFAS water-repellent coating, and Garden lucky says the covers can go in the washer on a cold gentle cycle. The listing title gives the seat as 23.5 by 25 inches but the description says 23 by 25, so measure your frame against both.
Pros & Cons

Pros

  • Machine-washable covers per the maker
  • Shorter 25 inch depth fits more frames
  • Hidden YKK zippers

Cons

  • Listing gives two different seat widths
  • Water-resistant, not waterproof
  • Back cushions are not as tall as some rivals
Detailed Review

Garden lucky's set pairs 2 seat cushions with 2 back cushions of 23.5 by 22 inches. The seats are 5.1 inches thick with 35D high-resilience foam, the fabric is solution-dyed polyester with a C0 no-PFAS water-repellent coating, and Garden lucky says the covers can go in the washer on a cold gentle cycle. The listing title gives the seat as 23.5 by 25 inches but the description says 23 by 25, so measure your frame against both.

Amazon rating: not available in our product data.

4
A 5.75 inch seat with a 25 by 22.5 inch back, 30D foam and a TPU-coated polyester cover. The title says set of 4 but the listing text describes 1 seat and 1 back, so confirm the count before you order.
Pros & Cons

Cons

  • Title and description disagree on piece count
Detailed Review

A 5.75 inch seat with a 25 by 22.5 inch back, 30D foam and a TPU-coated polyester cover. The title says set of 4 but the listing text describes 1 seat and 1 back, so confirm the count before you order.

Amazon rating: not available in our product data.

5
A 24 by 24 by 4 inch seat with a 24 by 22 inch back, 30D foam in the seat, polyester fiber in the back, two straps and a carry handle for moving it indoors.
Detailed Review

A 24 by 24 by 4 inch seat with a 24 by 22 inch back, 30D foam in the seat, polyester fiber in the back, two straps and a carry handle for moving it indoors.

Amazon rating: not available in our product data.

6
A fiber-filled 24 by 24 inch seat and a 28 by 22 inch back pillow with corded trim. The maker recommends storing it covered when not in use, so it suits a covered porch better than open sun.
Pros & Cons

Cons

  • Fiber fill, not foam
Detailed Review

A fiber-filled 24 by 24 inch seat and a 28 by 22 inch back pillow with corded trim. The maker recommends storing it covered when not in use, so it suits a covered porch better than open sun.

Amazon rating: not available in our product data.

All Products Compared

ProductBest ForSeat SizePiecesFillFabric
COZYVIDA Deep Seat Cushion Set of 2Best Overall24 x 27.5 x 4.5 in2 seats, 2 backs35D foamSolution-dyed polyester
Goodgoods Deep Seat Cushions 2-PackBest Warranty24 x 28 x 5.1 in2 seats, 2 backs35D foamSolution-dyed polyester
Garden lucky Deep Seat Cushions Set of 2Best Washable Covers23 x 25 x 5.1 in2 seats, 2 backs35D foamSolution-dyed polyester
Aegisun Outdoor Deep-Seat Cushion SetBest for Thick Seat24 x 24 x 5.75 inSeat and back30D foamPolyester, TPU coated
L'AGRATY Deep Seat Cushions with BackrestBest With Carry Handle24 x 24 x 4 inSeat and back30D foam seat, fiber backOxford fabric
Greendale Home Fashions Deep Seat Cushion SetBest Soft Feel24 x 24 x 5 inSeat and backFiber battingOutdoor polyester

Top 3 Outdoor Deep Seat Cushions Reviewed

#1 COZYVIDA Deep Seat Cushion Set of 2: Best Overall

Why We Picked It

COZYVIDA's set includes 2 seat cushions at 24 by 27.5 by 4.5 inches and 2 back cushions at 24 by 20 inches, sized for deep seat loungers and sectionals. The seats use 35D high-density foam, the polyester fabric carries a PFAS-free C0 water-repellent finish, and the covers open with YKK zippers. COZYVIDA backs the fabric with a 3-year limited warranty.

Key Specifications

  • Amazon rating: not available in our product data
  • Seat: 24 x 27.5 x 4.5 inches (2)
  • Back: 24 x 20 inches (2)
  • Fill: 35D high-density foam
  • Fabric: solution-dyed polyester, PFAS-free C0 finish
  • Zippers: YKK
  • Warranty: 3-year fabric limited (maker)
ProsCons
Two full seat and back sets in one boxWater-resistant, not waterproof
Deep 27.5 inch seat suits lounge framesShips compressed and needs a day or two to recover
YKK zippers and a PFAS-free finishWill not fit standard dining chairs

Best For

Two deep seat lounge chairs or a loveseat-size sectional that needs new seats and backs.

Who Should Skip It

Anyone with a shallow frame, since the 27.5 inch depth will overhang.

Verdict

A complete, well-specified pair of deep seat sets with a clear fabric warranty.

COZYVIDA Deep Seat Cushion Set of 2

#2 Goodgoods Deep Seat Cushions 2-Pack: Best Warranty

Why We Picked It

Goodgoods sells 2 seat cushions at 24 by 28 by 5.1 inches with 2 back cushions at 24 by 20 inches. The seats use 35D high-resilience foam, the fabric is solution-dyed polyester with a water-resistant finish, and the edges are chamfered with full-length concealed zippers. Goodgoods lists a 5-year fabric limited warranty, the longest in this group.

Key Specifications

  • Amazon rating: not available in our product data
  • Seat: 24 x 28 x 5.1 inches (2)
  • Back: 24 x 20 inches (2)
  • Fill: 35D high-resilience foam
  • Fabric: solution-dyed polyester
  • Zippers: full-length, concealed
  • Warranty: 5-year fabric limited (maker)
ProsCons
Longest fabric warranty listed hereBacks need 2 to 3 days to fill out, per the maker
Thick 5.1 inch seat28 inch depth fits only deep frames
Deepest seat in this guideFewer colors than larger brands

Best For

Shoppers who want the longest written fabric coverage.

Who Should Skip It

Owners of standard depth patio chairs.

Verdict

Similar to our top pick, with a deeper seat and a longer warranty.

Goodgoods Deep Seat Cushions 2-Pack

#3 Garden lucky Deep Seat Cushions Set of 2: Best Washable Covers

Why We Picked It

Garden lucky's set pairs 2 seat cushions with 2 back cushions of 23.5 by 22 inches. The seats are 5.1 inches thick with 35D high-resilience foam, the fabric is solution-dyed polyester with a C0 no-PFAS water-repellent coating, and Garden lucky says the covers can go in the washer on a cold gentle cycle. The listing title gives the seat as 23.5 by 25 inches but the description says 23 by 25, so measure your frame against both.

Key Specifications

  • Amazon rating: not available in our product data
  • Seat: 23 or 23.5 x 25 x 5.1 inches (listing gives both)
  • Back: 23.5 x 22 inches
  • Fill: 35D high-resilience foam
  • Fabric: solution-dyed polyester, C0 no-PFAS coating
  • Covers: machine washable, cold gentle cycle (maker)
  • Zippers: YKK, hidden
ProsCons
Machine-washable covers per the makerListing gives two different seat widths
Shorter 25 inch depth fits more framesWater-resistant, not waterproof
Hidden YKK zippersBack cushions are not as tall as some rivals

Best For

Households that want to wash covers in a machine instead of spot cleaning.

Who Should Skip It

Very deep lounge frames that need 27 inches or more.

Verdict

The easiest set here to keep clean, with a seat depth that fits a wider range of frames.

Garden lucky Deep Seat Cushions Set of 2

Also on Our List

  • Aegisun Outdoor Deep-Seat Cushion Set (Best for Thick Seat): A 5.75 inch seat with a 25 by 22.5 inch back, 30D foam and a TPU-coated polyester cover. The title says set of 4 but the listing text describes 1 seat and 1 back, so confirm the count before you order.
  • L'AGRATY Deep Seat Cushions with Backrest (Best With Carry Handle): A 24 by 24 by 4 inch seat with a 24 by 22 inch back, 30D foam in the seat, polyester fiber in the back, two straps and a carry handle for moving it indoors.
  • Greendale Home Fashions Deep Seat Cushion Set (Best Soft Feel): A fiber-filled 24 by 24 inch seat and a 28 by 22 inch back pillow with corded trim. The maker recommends storing it covered when not in use, so it suits a covered porch better than open sun.

How to Choose Outdoor Deep Seat Cushions

Measure the Frame First

Measure the seat depth from the front rail to the back frame and the width between the arms, then compare those numbers to the seat size in each listing. A cushion that is too deep hangs over the front edge, and one that is too narrow slides sideways.

Foam Density and Fill

Most foam sets list a density such as 30D or 35D. A higher number usually means a firmer, longer-lasting seat, but density alone does not tell you how soft the seat feels. Fiber-filled cushions feel softer at first and tend to flatten sooner.

Fabric and Coating

Solution-dyed fabrics carry color through the fiber, which helps them resist fading. Water-resistant coatings shed light rain, but foam can still absorb water through seams and zippers, so few listings promise a fully waterproof cushion.

Covers and Zippers

Removable covers make cleaning easier. Check whether the maker allows machine washing or only spot cleaning, and follow that instruction, because the wrong wash can damage coatings.

Ties and Storage

Ties or straps keep cushions from sliding and from lifting in wind. Even so, bring cushions in or store them in a box or bag during storms and long wet spells.

How We Evaluate Outdoor Deep Seat Cushions

For this guide we compared deep seat cushion sets on stated seat and back size, foam density, fabric and coating, cover and zipper details, and warranty. We read each maker's specifications and checked listing titles against their descriptions, and we point out where the two disagree. Most listings here had no rating data in our product feed, so ratings did not decide the order. We did not handle or measure these cushions ourselves, every figure comes from the maker's listing, and we never repeat a waterproof or fade claim as our own.

Variants of one listing count as a single product, and we would rather list a few strong picks than pad the list. Our full process is on the How We Review page.

FAQ

What is a deep seat cushion?

A seat and back set made for lounge furniture with a deeper seat than a dining chair. Measure your frame, because deep seat sizes vary widely between brands.

Are deep seat cushions waterproof?

Most listings say water-resistant. The fabric sheds light rain, but water can still reach the foam through seams, so store cushions dry when you can.

Can I wash deep seat cushion covers?

Some makers allow machine washing and others ask for spot cleaning only. Follow the care label on your set.

Final Verdict

COZYVIDA's set of 2 is our top pick for its deep seat, 35D foam and clear warranty. Goodgoods offers the longest fabric warranty listed, and Garden lucky has covers the maker says can go in the washer.

Aegisun has the thickest seat, L'AGRATY adds a carry handle, and Greendale is the soft, fiber-filled choice for a covered porch. For loose seat pads and more general picks, see Best Outdoor Cushions.