• Hometalker
  • United States
Asked on Jul 14, 2018

I need to add 4" of foam to my old couch seating area. Any hints?



The three couch seats are attached so to me my only solution was to buy a solid 2 4'x 4" x7 2" piece of upholstery foam from Amazon and put it on top of the existing saggy cushions I will be covering the whole thing with a king size quilt. .

4 answers
  • Johnavallance82
    on Jul 14, 2018

    Hello Nan, Do I assume the foam seats you have are showing signs of wear and tear? If so make sure the foam you buy is Self extinguishing and suitable for purpose. On the other hand, if you need the height raised, then you can buy Furniture Raisers at many stores or online, or maybe available through your social worker, if you have one!
  • Emily
    on Jul 14, 2018

    I'm not sure I understand your measurements. 2 4"

    X 4" X 7 2" piece of upholstery foam or do you mean 24" X 4" X 72" which would make sense? Or is it 24" X 72" X 4"? which would make the most sense. Except that 24" seems a little narrow for a sofa depth

    So assuming you have a piece of foam that is 72" long, X 24" wide X 4" thick and you want to use that to make a topper for your sofa, is that right? Are you asking how to use this so the sofa has an integrated look?

  • Vimarhonor
    on Jul 14, 2018

    Hello Nan, are you having problems with his saggy couch- sofa seat? I had a problem when I addressed it by looking into the bottom inside of the sofa.

    If a saggy uneven cushion seat is your problem —here’s a synopsis of what I did.

    Our Natuzzi leather sofa was very expensive and custom ordered —it was a big relief to add the support modification. This sofa has a recline mechanism on the right side and the left side is plain fixed seating with an ottoman. It was the plain fixed seat side that sagged. I confess Im normal weight and BMI!

    In our case —this third saggy seat is removable from the other two seats, it slides up and out in a slot -locking the mechanism together. As you might guess it made making this repair easier being a smaller working area. I say this beause your interior skeleton structure may be different than mine.

    But certainly worth a look—- as this enhancement does improve both the function and look of the sofa.

    After removing the stapled black bottom dust cover we assessed the situation and initiated our repair with supplies we had on hand. We added some padding which happened to be a memory foam mattress topper remnant and it was placed and supported by a 1x 4 piece that we had it on hand.

    The existing interior wooden framework was measured and a length of 1x4 larger than the frame was cut and placed on top of the frame for support and this was screwed in place. It was attached to the interior existing wooden structure sideways with screws using the Dewalt screwdriver.

    The black dustcover was restapled on the bottom.

    You may or may not need additional padding. You may just need the wood support for your existing saggy cushion.

    Regular foam sometimes wrapped with batting—also makes excellent replacement filler too.

    I hope these details may help you address your situation.

  • Bijous
    on Jul 15, 2018

    Hi, since you're covering the whole thing with a quilt, cut the cushions off the couch. Adding a piece of foam over top may prove to be uncomfortable to sit on since the 3 separate cushions are not level. Discard the old cushions. Now add a piece of foam the proper height for your couch. (FYI: foam comes in different firmness values, so decide which is best for you before ordering one that may be too soft. If the couch is used a lot, I suggest you use a firm to medium firm foam). Good luck.

Your comment...