Stumped on how to transition between your baseboards and door trim? Try a plinth… Stumped on how to transition between your baseboards and door trim? Try a plinth block! This handy tutorial will show you how. Plinth Blocks, Trim Work, Door Trims, Moldings And Trim, Crown Moldings, Home Upgrades, Transitional Decor, Transitional Living Rooms, Home Repairs