I saw this during the last week of my renovation and was honestly, had bad heartache when i saw it as I did not change the room floorings. However, there was a gap in the entrance of my bedroom door!! Was prepared to fill it with grout as I could not afford both the time and money to redo the flooring of my room. and was prepared to live with the ugly grout line that might appear in my bedroom flooring And then.... the sifu of my carpenters solved it for me! He merely used a blade to slide against the skirting (?) of the flooring and used a hammer, yes, a HAMMER and hammered it downwards and blew up the dusts that settled in the gap and voila!! Now you don't see it!! Really kudos to the sifu! I was there when he did it and I must say i am really amazed with his workmanship. He is abit of a perfectionist but hey, that's fine to me as it shows how much pride he took in his work and ensured every door and cabinet are fixed well.