I always thought particle board was what we call chipboard - there is lots of references to melamine faced versions of it being used in kitchen cabinet carcses which would make sense, but i'm at a loss to see how you would use it for a bench!
Perhaps y'all would recognize particle board by it's other common name: termite barf. Much easier to understand.
Here in the states we can get "high density" particle board that is much stronger than the other "chipboard" stuff and extremely heavy. The surface is glossy. I believe this is what Sam Allen was referring to.
I can agree with Rodger. Except around here MDF is know as Termite Barf (it is more digested) and Chipboard,particleboard is called sawdust board. The high density is only used for cheap counter tops and really really cheap (aka WalMart) furniture. Most of that being made close to where I was born. MDf and particle board both weigh in at about 70-90 pounds for a 4x8 sheet. Knot sure what that is in MM 101cm x 202 cm ???
Particle board is between chipboard and MDF - denser than the former and less dust when working than the latter (larger particles!). If anyone wants to see some I've got a few bits lying around in my workshop somewhere, and a desk stand in the office which raises the monitor to a decent height above the desk surface... Like chipboard and MDF - don't ever get it wet!