Hi, I'm going to start my second hardwood floor project, the question I have is this one is in a kitchen and there's linoleum down now do I first have to remove it and do I have to remove the luewon also(I don't know how to spell it). There's 3/4 ply sub floor in the house.
Thanks for your help Ron

If the "lino" ( probably vinyl ) is glued down to luan underlayment, and the luan is 1/4" thick, many installers will go over it, knowing that 2" fasteners will penetrate and grab into the plywood subfloor. That said, the NWFA considers luan a poor material as it is not really plywood. And they recommended removing it instead of installing over it. So would I.

It only makes a small bump, go over it.

Thanks for your help.

Usually linoleum is very thin and you can just install floor right over it, sometimes lionleum is installed over a 1/4 plywood , if this is the case you have to remove the linoleum and plywood.This is most of the times the case when the lino is installed over the wooden subfloor , that 1/4 plywood is just the smooth base for the lino.