15th September 2025 What Is The Best Skirting Board for Curved Walls? The best skirting board for curved walls is Intrim’s flexible polyurethane skirting, tested to bend to a 400mm radius. Supplied in 5.1m lengths, it creates a smooth, consistent finish on tight curves, staircases, and round feature walls with minimal joins. For a seamless result where curved and straight walls meet, make sure you order the flexible and standard skirtings at the same time.