Decorative moulding used where floor and baseboard moulding meet. Ready to paint. Shoe moulding, also known as “base shoe,” is a thin strip of moulding that runs along the bottom of baseboards. It is used both as a decorative element and to hide any unevenness or gaps in between the baseboard and floor. Not to be confused with quarter-round (another type of baseboard finishing trim), shoe moulding is often preferred for its sleek, narrow appearance.