The molding used to finish an inside surface at a 90-degree angle is a?

The molding used to finish an inside surface at a 90-degree angle is a?

• A. quarter round
• B. shoe molding
• C. concave molding
• D. marker piece

Answer: (B)

Finishing an inside corner requires a narrow, edge-graceful molding that sits neatly against both perpendicular surfaces and hides the joint at the floor-line. Shoe molding is that slim trim designed to cap the baseboard where the wall meets the floor, filling the small gap and providing a clean, protected edge at inside 90-degree corners. It’s specifically used to create a tidy transition in tight interior corners, which is why it’s the best fit here. Quarter round is broader and rounded, often used for larger gaps at the baseboard-floor junction. Concave molding has a curved inward profile and isn’t the usual choice for this inside-corner finish. A marker piece isn’t a functional trim profile for finishing surfaces.

Finishing an inside corner requires a narrow, edge-graceful molding that sits neatly against both perpendicular surfaces and hides the joint at the floor-line. Shoe molding is that slim trim designed to cap the baseboard where the wall meets the floor, filling the small gap and providing a clean, protected edge at inside 90-degree corners. It’s specifically used to create a tidy transition in tight interior corners, which is why it’s the best fit here.

Quarter round is broader and rounded, often used for larger gaps at the baseboard-floor junction. Concave molding has a curved inward profile and isn’t the usual choice for this inside-corner finish. A marker piece isn’t a functional trim profile for finishing surfaces.