Quarter round is a flexible molding that is used to cover a gap between flooring and wall or cabinet (would be considered as baseboard); ceiling, and wall or cabinet. The most popular trim brands for a quarter round are Home Depot, Lowe's, Menards. Can be installed over vinyl plank flooring, tile, laminate flooring, hardwood flooring. This moulding can be made from PVC (plastic), rubber, MDF, or wood. The most popular color for the vinyl quarter round is white. The common sizes are half-inch, three-quarter inch, and one-inch.