Polyurethane for Flexible Mouldings

Curved walls, rounded staircases and sweeping architectural features are becoming increasingly popular in residential and commercial design. This shift brings common questions from designers, builders, and homeowners:

“Is there a moulding that works on curved walls?”
“Can skirting, architraves or trims bend around curves?”

The answer is yes - polyurethane mouldings provide the ideal solution for projects requiring flexibility around concave, convex, or irregularly curved surfaces. Engineered for strength, consistency and smooth bending, polyurethane is the leading choice for mouldings on curved walls.

Why Choose Polyurethane for Curved Mouldings?

Polyurethane mouldings are manufactured to offer both crisp profile detail and controlled flexibility. Unlike MDF or timber, polyurethane has a consistent quality from piece to piece and bends without cracking, splitting or distorting, allowing mouldings to follow architectural curves with precision.

Key Benefits

• An ideal solution for skirting and wainscoting on curved walls
• Flexes consistently around tight and gradual curves
• Lightweight and simple to install
• Moisture-resistant and stable in varying conditions
• Suitable for internal and selected external applications
• Highly durable and low-maintenance

Sizes Available

Our polyurethane mouldings are available in multiple sizes from 66mm up to 285mm, to suit different design styles and wall conditions.

Widths (Heights)

Common options include:

• 66mm
• 90mm
• 115mm
• 135mm
• 185mm
• 230mm
• 285mm

Thickness

• 18mm or 24mm, depending on profile

Length

• Supplied in 5.1m lengths

Flexibility Information

Polyurethane is designed to bend smoothly without losing its shape or surface quality.

Typical Flexibility Performance

• 18mm polyurethane can achieve a minimum radius of 400mm
• 24mm polyurethane can achieve a minimum radius of 500mm
• Works on both concave and convex applications
• Ideal for:
  • Curved walls
  • Rounded staircases
  • Feature joinery
  • Curved decorative trims

Where Polyurethane Curved Skirting Can Be Used

Because polyurethane is stable, moisture resistant and highly durable, it can be installed in a wide range of environments, including:

• Curved plasterboard or masonry walls
• Spiral and curved staircases
• Bathrooms, laundries and wet areas (it won’t swell like MDF)

Note: For external use, ensure correct priming and exterior-grade paint to maintain long-term performance.

Profiles Available

We can manufacture polyurethane curved mouldings to match most of our skirting, chair rail, and picture rail profiles across a range of interior styles, including:

• Flush Finish, Modern Contemporary, and Art Deco interiors
• Classic or Heritage interior styles such as Victorian and Georgian
• Classic Hamptons and Modern Hamptons interiors
• Country and Modern Farmhouse interiors
• Coastal or Scandi interiors
• French Provincial or Parisian interiors

For a seamless result where curved and straight walls meet, make sure you order your flexible polyurethane and standard straight skirtings at the same time.

Durability & Performance

Polyurethane, unlike MDF, offers high performance in challenging environments.

Durability Benefits

• Moisture and humidity resistant
• Won’t warp, crack, rot, or swell
• Long-lasting, low-maintenance material
• Stable across temperature shifts
• Smooth, consistent surface ready for priming and painting

Perfect for homes, apartments, hotels, commercial spaces and public buildings.

Need a Flexible Solution for Curved Walls?

Contact our team for profile recommendations, radius guidance and project specifications.