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Old 06-13-2017, 06:24 PM   #1
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Trimming a Memory foam mattress

Has anyone attempted to trim a memory foam mattress. If you did, how'd that work out? The pros want $1000 for a custom fit queen mattress. Seems a little steep to me.
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Old 06-13-2017, 06:35 PM   #2
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I used an electric carving knife to cut a 3" thick latex foam mattress. It worked reasonably well. I've heard of other people doing the same on memory foam.
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Old 06-13-2017, 06:45 PM   #3
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Electric carving knife or hot knife.
Google "electric hot knife foam carving"

In the film biz we use both for all kinds of foam work.

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Old 06-13-2017, 06:59 PM   #4
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I have made custom size memory foam mattresses before. Go to ebay and get one from vendor "maw and paw bargains " don't be scared off by the low price. The cover zips off and you can sew it on any sewing machine. I paid over $1000 for a king size Temperpedic and the $250 mattress from ebay is just as comfortable.
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Old 06-13-2017, 07:02 PM   #5
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50 year old electric carving knife did the job just fine for me.
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Old 06-14-2017, 05:39 AM   #6
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Thanks to all for your generous time!
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Old 06-14-2017, 06:14 AM   #7
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A regular, old bread knife worked for me.
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Old 06-14-2017, 06:46 AM   #8
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Electric knife works. Or find a local marine upholsterer that deals in form. Ours here in Pensacola uses a band saw and the mattresses come out perfect.

We love our "budget" memory foam from Amazon more than our $3,000 tempurpedic mattress.
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Old 06-14-2017, 07:57 AM   #9
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Quote:
Originally Posted by AWCHIEF View Post
50 year old electric carving knife did the job just fine for me.
Plus 1... Electric carving knives work nicely
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Old 06-14-2017, 11:40 AM   #10
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Electric knife hAs worked for me too.
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Old 06-14-2017, 12:03 PM   #11
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I didn't have an electric carving knife. I just made templates for top and bottom, marked it out with magic marker and used a really sharp carving knife. The electric knife does a better job of completing the cut in a single pass. The carving knife needed to be used with multiple passes but it worked out just fine.
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Old 06-14-2017, 12:46 PM   #12
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As others have mentioned: BREADKNIFE.

Bought memory foam from Walmart 6.5 years ago as original AS mattress really, really hurt my back. Walmart memory foam still working fine and I'm full-time.
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Old 06-14-2017, 04:20 PM   #13
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I was surprised, but was able to do a 3" with heavy scissors. Good luck.
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Old 06-14-2017, 05:04 PM   #14
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OK... Here's my solution to sorry Airstream mattresses:

I found a Foam Mfr'r......www.foambymail.com contact email is: info@foambymail.com or by phone at: 586-627-3626.

They will make any size or thickness...but it's important you measure accurately the height and width and thickness you want.

I ordered their most-firm...and it is a bit too firm, so we placed a egg-carton soft 2" foam cover on it and now it's a fantastic mattress. If I had to do it over, I'd order the next softer level.

I ordered a 60"W X 84"H X 8"Thick (full queen) for my 22' Sport (2008 model, in which we lowered the dinette permanently for a bed....we'll never use a dinette... we eat on the lounge-sofa using folding TV-tables. Beware: later 22' Sports have a slightly narrower mattress, so measure yours carefully.)

Their product arrived in a few days exactly as ordered. I used an electric carving knife to cut the two rounded corners ... after I marked it with a Pilot-point marker, using the original Airstream mattress as a template. It worked out PERFECTLY (except as to it being more firm than I would have wished.)

The total cost, including shipping was $438.60.

We do not like "memory foam" because we don't like the "puddle" it makes one lie within. We ordered the "latex" mattress and it accommodates you without making you feel like you're in a puddle, and it does not make you feel hot.

When they made this for us, they actually glued/vulcanized a 2" foam sheet onto a 6" foam base to make the 8" I actually ordered. If I had it to do over, I'd ask if they'd glue/vulcanize a 2" soft foam onto the 6" firm foam.... as I think that would be the best solution of all (for our personal tastes in firmness.)

Mind you, my wife and I like a firm mattress ...and in our home we have a Posturpedic FIRM... but the Foam by Mail degree of firmness was simply too firm for us, as mentioned first in this message. (It's a shame there's no show-room to try 'em out first...but you readers can benefit by our experience hopefully.) Again...we are now FULLY SATISFIED with our egg-carton foam on top of their most-firm model. And their quality is excellent, as is their shipping and service.
I should also mention they claim their latex has a life expectancy of 16 years!

Most important...IT DOES NOT SMELL!
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