Noise issue and worried about it if i have workshop built any views or help please

[suesi34e]

Hi guys,

I have read various posts on here about noise I am just wonder if another post may throw up some new ideas etc.
It would be great if there is a company out there showcasing two buildings with the same dims one as standard construction and the other with sounddeadening materials used. I am yet to find such a company! I may want to use in time very noisy machinery and I don't want to spend a lot of money having something built if the neighbors are going to complain. Perhaps some of you guys know what DB rating you had before and after a project, doing say x,y andz! I have no fixed methods of a build in mind; size will come down to two things cost and how noisy I expect things to be.

All the best

Suesi