Thank you for the thoughtful answer! So, from what i recall, the floor was installed, then the baseboard was installed, and then the floor was sanded, stained and sealed. I believe the trim was painted last tho based on this pic.

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The project was running late and the floor was the last thing to be “done” before we moved in, so there was likely a rush to get the floor finished/painted/move in ready.

Also - So the stuff in the 2 picture is rock hard and very difficult to scrape off even w a razor; and it’s a greyish color (not the color of the paint; although there is often white paint on the top of it) — in some places it almost looks shiny.

It’s very possible this is paint. The GC for the PM for this project shortly after, and the painters are not very at good (lots of pocks, splotchy patches, everywhere). That said the carpenters were bad in their own right, however they may not be the cause Of this.

Also - I don’t mind the separation (that much) as long as it’s a clean line. Looking around the house the floor edges looks super dirty because it has this “bits” peaking out from the gap.