what is the stuff called under the carpet?

[sacvwgolf]

could anyone tell me what the stuff under the carpet is called and where could i get it? i think it is used for sound proofing. i need it as i have ripped out the old carpet and replacing it with a checker plate floor and have throw the stuff away only to realize that i need it.

thanks

[Mk1Mad J - 16v]

Floorboards 

I think what you're after is underlay - you can get it from any carpet shop, I happen to know that Allied Carpets are Duralay's (UK's largest Manufacturer) biggest customer and i think they do the best prices - I used to pay the bill - about £700,000.00 a month 

[Dizzie]

I'd look for some dense foam. that's what BMW's use and they're ultra quiet on the motorways.

[Mk1Mad J - 16v]

Actually some of the stuff for laminate floor is sound deadening too

[Uruk Hai]

If you go to a good car audio place they should rolls of sound proofing material

[Dizzie]

that's called dynamat. there is a cheaper version called phat mat which is prety much exactly the same stuff.

[Uruk Hai]

I didnt mean Dynamat I meant the rolls that are like thick carpet and can be used under the carpet as soundproofing and underlay

[sacvwgolf]

thanks