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Long Sofa Cushion Support Board for Sagging Cushions

For long sofa seats 68″ to 96″ wide, inside the arms

$86.88 82″ to 96″ wide, size 23 · Free shipping to the lower 48

Choose your size

Seat width, inside the arms

Seat depth, front edge to backrest

How to measure depth
Depth: front edge to backrestSide view of a seat with the seat cushion lifted off, and the back cushion off too, drawn dashed. A measuring arrow runs along the bare seat base, from its front edge straight back to where the seat base meets the back. Back cushions off too,if they come off Seat base Seat basemeets the back Front edge Depth: front edge to backrest
Take the seat cushion off, and the back cushions too if they come off. Measure the bare seat base from the front edge straight back to where it meets the back. Measure the base, not the cushion: cushions hang over the edge.
Which size? Find your seat depth on the ruler Seat-depth ruler for long sofa seats 82 to 96 inches wide. Seats 23 to 26.5 inches deep take size 23. Seats 27 to 29.5 inches deep take size 27. Seats 30 to 32 inches deep take size 30. Long sofa, 82″ to 96″ wide 23″25″27″29″31″ size23 size27 size30Top: your seat depthBelow: the size to pick

Not sure of your size? Answer two questions

Made for seats 82″ to 96″ wide and 23″ to 26.5″ deep. Measure the bare seat base with the cushions off.

It makes the seat firm and level. If you like to sink in, it's not for you.

Is it right for my couch?
It helps when the base under the cushions has sagged and your cushions still hold their shape. It won't fix flat, worn-out foam, or a broken frame or springs.Two columns. Left, with a check mark, It helps when: a seat base that dips, with the wood board lying across the dip and the cushion level on it; and a full cushion that still holds its shape. Right, with a cross, It won't fix: a cushion that has gone flat, and a frame rail snapped in two. It helps whenIt won't fix The base underthe cushionshas sagged Your cushionsstill holdtheir shape Flat, worn-outfoam Broken frameor springs How firm is it? From soft, you sink in, to firm and level. With the board the seat is on the firm, level half. Your own cushion stays on top. Thin cushions: you'll feel the board. If you like to sink in, this is not for you.A five step scale from soft to firm, shaded from light to dark. On the left a soft cushion with a deep dip where you sink in. On the right a cushion with a flat top on a wood board. A bracket marked With the board spans the firm half of the scale. With the board Soft, you sink in Firm and level Your own cushion stays on top.Thin cushions: you'll feel the board. If you like to sink in, this is not for you.
Example: a seat 70 inches wide on the board for seats 68 to 81 inches. The extra length tucks under the arms.A sofa seen from above with the cushions off. The wood board for seats 68 to 81 inches wide lies on a seat that measures 70 inches inside the arms. Its end panels reach past the inside of each arm, drawn dashed where they tuck under the arms.Example: a seat 70″ wide Board for seats68″ to 81″70″ inside the armsExtra length tucks under the arms.

Free shipping to the lower 48. Usually arrives in about 5 business days.

Lifetime warranty on defects: send a photo and we send a new board. 30 days to return it. Return postage is on you, so check the size label before you unfold it. Return details

Questions? Call +1 305 454 3931 or send us your numbers and we'll confirm the size before you order.

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The details

What you're getting

Fits seats
82″ to 96″ wide, inside the arms
Seat depth
23″ to 26.5″
Size
size 23
Panel material
Solid wood
Panel thickness
0.5″
Load rating
400 lb across the product
Cover
Bound fabric cover, finished edges, rounded corners
Installation
Under the cushions, no tools, a couple of minutes
Shipping
Free to the lower 48 · about 5 business days
Returns
30 days. Refund once it's back in good condition. Return postage is on you.
Long Sofa Cushion Support Board for Sagging Cushions $86.88

In their words

What customers say about this board

4.7 out of 5 7854 reviews of our 21.5″ to 30″ deep sizes

Much easier to sit and get out of

I ordered the one that covers a 68" to 81" couch. My couch is 70". I actually had to place the 2 end pieces down along the bed to make this lay flat. This isn't a complaint. Just wanted to make people aware if they have a couch on the shorter side of the length range, they may need to tuck a slat or 2 somewhere. I measured the depth at 25" and in my case, the depth is perfect. My cushions are pretty shot and I have found this hard to get out of because I've been sinking in the couch down to the bed frame. Now it is solid. I now am sitting higher and can get up from the couch without needing to slide forward to the frame. I also liked the lifetime warranty against the others listed.

Barry S.

Size bought: Long sofa, 68″ to 81″ wide, size 27 · Reviewed Feb 2026

Fixed couch sag

This really helped the sag we had in everyone's favourite spot. I bought two for our L-shaped couch. The item comes with life time warranty which makes me feel better since we do have young ones. It fit perfectly since we measure the height. It doesn't show up at all and the extra length folds away nicely.

Sunny

Size bought: Long sofa, 68″ to 81″ wide, size 25 · Reviewed Jul 2026

LIFE CHANGING

I'd give it 10 stars if I could!! 1yr sofa sectional. Love the sofa but the seat cushion was constantly slipping off and then the back pillows would slip behind. This is a long and heavy sectional. My husband is no help. Finding this board...We've fallen back in love with our purchase. This board is extra long, helps the cushion feel harder and nothing moves.

Michele

Size bought: Long sofa, 82″ to 96″ wide, size 30 · Reviewed May 2026

Read more reviews

We chose these reviews to show different couches and sizes. The 4-star ones stay in.

A couple of minutes, no tools

Three steps. No tools.

Nothing to screw, cut or glue. The board rests on the seat base under your cushions and stays out of sight.

What's in the box: solid wood panels in a fabric cover. Folds for shipping. Opens flat on your seat.Top: the board folded for shipping, cut open from the side, so the wood panels show inside the grey fabric cover that wraps around each fold. Bottom: a couch seen from above with the cushions off, and the board opened flat on the seat base, grey cover on top, with one corner of the cover turned back to show the wood panel inside. Folds forshipping. Solid wood panelsin a fabric cover Opens flat on your seat.
  1. Take the cushions off

    Take the cushions off

    Lift off the cushions to reveal the flat seat base underneath. This is where your BEN'SHOME support will rest.

  2. Lay the board on the seat base

    Lay the board on the seat base

    Lay the support flat across the seat base and slide it all the way back for a secure, even fit.

  3. Put the cushions back

    Put the cushions back

    Put the cushions back and sit down. The board stays hidden underneath and gives the seat a firmer base.

Every size of this board

Find your numbers on the list

If you already know your numbers, skip the questions and pick straight from here.

Measure before you order. Take the cushions off and measure the bare seat base, inside the arms and from the front edge straight back. Cushions overhang the frame, so measuring the cushions gives the wrong size. Not sure? Send us your numbers and we'll confirm.

Long sofa, seats 68″ to 81″ wide

Seat width Seat depth Size Price Choose
68″ to 81″ 19″ to 22.5″ 19.7 $50.88 Choose, Long sofa, 68″ to 81″ wide, size 19.7
68″ to 81″ 23″ to 24.5″ 23 $65.88 Choose, Long sofa, 68″ to 81″ wide, size 23
68″ to 81″ 25″ to 26.5″ 25 $75.88 Choose, Long sofa, 68″ to 81″ wide, size 25
68″ to 81″ 27″ to 29.5″ 27 $82.88 Choose, Long sofa, 68″ to 81″ wide, size 27
68″ to 81″ 30″ to 32″ 30 $86.88 Choose, Long sofa, 68″ to 81″ wide, size 30

Long sofa, seats 82″ to 96″ wide

Seat width Seat depth Size Price Choose
82″ to 96″ 23″ to 26.5″ 23 $86.88 Choose, Long sofa, 82″ to 96″ wide, size 23
82″ to 96″ 25″ to 26.5″ 25 $90.88 Out of stock
82″ to 96″ 27″ to 29.5″ 27 $95.88 Choose, Long sofa, 82″ to 96″ wide, size 27
82″ to 96″ 30″ to 32″ 30 $99.88 Choose, Long sofa, 82″ to 96″ wide, size 30
Width: inside the armsFront view of a sofa with the seat cushions lifted off. A measuring arrow runs across the bare seat base, from the inside of one arm to the inside of the other.Cushions off Seat base Width: inside the arms
Take the cushions off. Measure the bare seat base from the inside of one arm straight across to the inside of the other.
Depth: front edge to backrestSide view of a seat with the seat cushion lifted off, and the back cushion off too, drawn dashed. A measuring arrow runs along the bare seat base, from its front edge straight back to where the seat base meets the back. Back cushions off too,if they come off Seat base Seat basemeets the back Front edge Depth: front edge to backrest
Take the seat cushion off, and the back cushions too if they come off. Measure the bare seat base from the front edge straight back to where it meets the back. Measure the base, not the cushion: cushions hang over the edge.

Not sure? Find my size

Send us your two measurements and a photo of the bare seat base, and we will confirm the size before you buy.

Worth saying plainly

When this is not the answer

The board solves one problem: a seat base that has gone soft underneath the cushions. That is what is wrong with most sagging sofas. Here are the cases where it is not.

A frame that has cracked or given way

If the sofa creaks under you, leans, or one corner has dropped, the problem is the structure rather than the seat base. A board laid across the seat will not straighten a frame.

Springs that have snapped rather than stretched

Webbing and springs that have slowly gone slack are exactly what this is for. Metal that has actually broken needs a repair, and the board would sit on top of the fault rather than take its place.

Cushions that are worn right through

The board gives your cushions a firm base to rest on. It does not put thickness back into foam that has collapsed. If the cushions themselves are thin and flat, you are looking at new cushions as well as a board.

A sofa bed

It helps with the sag, but it cannot fully cancel out the folding mechanism underneath. Go in expecting an improvement rather than a fix.

You like sinking into your sofa

This makes the seat firmer. That is the whole point of it, and it is the wrong buy for anyone who wants soft. We would rather say so here than have you send it back.

Not sure which one describes your sofa? Take the cushions off, send us a photo of the bare seat base, and we will tell you straight.

Before you order

Things people ask

What does this product do?

It sits under your seat cushions and gives them a firm, even base to rest on. When the webbing or springs underneath have stretched out, the cushions have nothing solid to land on, and you sink. The board puts that support back.

How do I know which size to order?

Use the size finder. Pick your furniture, then tap the width and seat depth of the bare seat base, measured with the cushions off. It shows you the one size made for those numbers. If you'd like a person to confirm it, send us your numbers before you order.

Will it make the seat too firm?

It makes the seat firmer than it is now, which is the whole point. Most people are looking for exactly that. If you like sinking into your sofa, this is not for you, and we would rather say so here than have you send it back.

How firm is it? From soft, you sink in, to firm and level. With the board the seat is on the firm, level half. Your own cushion stays on top. Thin cushions: you'll feel the board. If you like to sink in, this is not for you.A five step scale from soft to firm, shaded from light to dark. On the left a soft cushion with a deep dip where you sink in. On the right a cushion with a flat top on a wood board. A bracket marked With the board spans the firm half of the scale. With the board Soft, you sink in Firm and level Your own cushion stays on top.Thin cushions: you'll feel the board. If you like to sink in, this is not for you.
Can it fix a very old or badly damaged sofa?

It helps when the problem is soft support underneath the cushions, which is the usual cause. It will not rescue a cracked frame or snapped springs. If you are not sure which one you have, send us a photo of the bare seat base and we will tell you straight.

Does it slide around?

It rests flat on the seat base under the cushions, and the cushions and your weight hold it in place. It is not an anti-slip product. If your cushions already slide forward, tell us before you order.

What is covered by the warranty?

The board itself, for as long as you own it. If it cracks, splits, or the panels come apart, we replace it free. Send us a photo and we will send a new one. You keep the old one, there is nothing to ship back. A warranty card comes in the box. This covers faults in the product, not damage from something else happening to it.

How long does delivery take?

Free shipping across the 48 contiguous states, usually about five business days. Tracking is emailed when it ships. We do not currently ship to Alaska, Hawaii or military addresses.

What if the size I ordered is not the right match?

You have thirty days. Return shipping is at your cost, and the refund goes out as soon as it arrives back in good condition. Easier still: send us your measurements first and we will confirm the size before you buy.

All questions

Sit down without bracing yourself.

Pick your size above, or let the size finder work it out.

Choose your size
  • Free shipping to the lower 48
  • Lifetime warranty on defects
  • 30 days to return it