Hello.

I think that staining maple floor is pretty challanging.
Does maple show imperfect sanding more then oak?

Does maple takes the stain unevenly?

What stain works best on maple?

Maple, because of it's density will present sanding signature more than that of oak.

I like to shine a hologen light accross the floor before we put the machine away, circle any swirl with a pencil and work it out.

We water pop all of our stain jobs as products don't seem to penetrate as deeply today as they did a decade ago.

We use Bona dri-fast stains as we KNOW they will be dry the next day (I don't trust the 3 hour dry claim.)

Still....advise you customers that Maple, (like Pine) can stain unevenly, even with a grain raise procedure prior to staining.

I have heard the top dogs of floor finishing, tinting their first or second coat of finish, when staining maple, or pine.