French style molding, in the vocabulary of Parisian apartments from the 17th through 19th centuries, is one of the most recognizable interior design traditions in the world. Haussmann-era buildings with their 2.8 meter ceilings, tall French doors, marble fireplaces, and signature moldings have set the template that designers still reference.
The most identifiable element is the ceiling cornice. In a classic Haussmann apartment, the cornice drops 80 to 150 millimeters from the ceiling, with a developed profile that combines a small cove at the top, a flat or stepped middle band, and a small return at the wall. The profile is restrained compared to Baroque or Rococo cornices, but it has a refined presence that defines the room.
The second most identifiable element is the wall panel molding. In a classic Haussmann apartment, the wall is often treated with a chair rail at 90 to 100 centimeters, a small panel molding above the chair rail, and a more developed panel molding below. The lower panels are typically taller than they are wide (a 1:1.5 or 1:2 ratio), and the molding has a small cyma or ogee profile.
The third most identifiable element is the door surround. In a classic Haussmann apartment, the door is tall (2.4 to 2.7 meters) with a substantial surround — a head casing with a small cornice, side casings with a developed profile, and sometimes a small transom above the door. The surround is painted the same color as the wall, often in a soft white or a pale color.
The fourth most identifiable element is the fireplace mantel. In a classic Haussmann apartment, the fireplace is a substantial element with a marble or carved wood mantel, a mirror above, and a developed surround. In a PU application, the mantel is a factory-made assembly with a developed profile, designed to replicate the Haussmann aesthetic.
For sourcing, French style molding is a specific vocabulary that most PU factories offer as a coordinated family. The factory's design team can advise on the right combination of profiles (cornice, chair rail, panel molding, door surround) for a French style interior, with the lead time depending on the complexity of the order.
A practical note on the proportions. French style molding works best with tall ceilings (2.7 to 3.0 meters) and substantial trim. The proportions are larger than modern trim, and the trim should be scaled to the room. A small cornice in a tall room reads as under-scaled; a substantial cornice in a small room reads as overwhelming.
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Frequently Asked Questions
Q: What is polyurethane (PU) decorative material?
A: Polyurethane (PU) decorative material is a high-density closed-cell polymer molded into architectural profiles such as cornices, ceiling medallions, wall panels, columns, and skirting boards. It replicates the appearance of plaster, carved wood, or stone at one-quarter the weight, is fully waterproof, impact-resistant, and arrives factory-primed for paint.
Q: How does PU compare with plaster and wood mouldings?
A: PU is lighter than plaster (no scaffolding required), impact-resistant during transport, and immune to cracking. Compared with wood, PU does not warp, split, or attract termites, and it tolerates moisture in bathrooms and kitchens. The trade-off: PU cannot be refinished the way solid wood can, but its lifespan is 20–30+ years with minimal maintenance.
Q: How do you cut and finish PU mouldings?
A: Cut PU mouldings with a fine-tooth miter saw (40+ teeth for a 10-inch blade) to avoid chipping the molded edge. Sand the cut edge with 220-grit, then apply two coats of interior latex paint. Mitre joints at corners, fill seams with lightweight spackle, sand smooth, and finish with one final top coat.
Q: Is PU moulding safe for indoor air quality?
A: Yes. Premium PU mouldings are manufactured without formaldehyde, asbestos, or VOCs. They meet EN 13501-1 Class E fire classification as a minimum, with Class B fire-retardant versions available for commercial projects. The factory-applied water-based primer further reduces off-gassing once installed.