I have filled "wood floor gaps" in the past with success and some not so(stain matches lol). However this new customer seems to have some pretty big gaps (due to an old house expansion etc.). I am a little bewildered on how to handle this,since they seem to be very finicky folks. I figure gaps up to 1/8 thk., wood filler with stain to match will blend in and can be camouflaged pretty well. But I am a little more concerned on the ones that 1/4-1/2 how do you handle this? I know its not oak flooring. I believe there is two scenarios one room is old wood planking 4-6 inches wide (knotty pine) and I think the other is more in the lines of a pergo type product planking. I do recall the stain/color on both floors is in the very dark family. Sorry I couldn't be more specific, will try and be more accurate when I go inspect a second time with pix and take care of some easier tasks. I am going to ask if they have some spare pieces in the house. I have in the past ripped some oak floors into tiny strips and fitted with some success.

I recently bought a new house with decorative concrete floors. They are stained and sealed with SS Specialty 2500 high gloss but they looked dull and had several scratches. I did a xylene wash but there are still some places that lack sheen. They almost look like spots where something was spilled. Is there a way to just touch up these small spots without redoing the whole floor? The parts that look shiny look amazing!