A modern door casing for a new build is a restrained, geometric frame that complements the home's contemporary design. The casing is typically a simple flat or stepped profile, with clean lines and a minimal visual presence.
The most common modern casing is a flat strip. A simple rectangle, 60 to 100 millimeters wide, with a flat face and a small chamfer on the edges. The casing is the most restrained option, suitable for modern and minimalist interiors.
A second common modern casing is a stepped strip. A single step on the face, with a flat or slightly chamfered edge. The casing has a little more presence than a flat strip, but it still reads as modern.
A third common modern casing is a flush casing. A casing that's flush with the wall, with a small reveal at the edge. The flush casing is the most modern option, and it requires a precise install with a wall that's built to the right dimension.
A fourth common modern casing is a shadow gap casing. A casing with a small reveal (5 to 10 millimeters) between the casing and the wall, with the back of the reveal painted dark. The reveal is a deliberate design detail, and the casing reads as a precise architectural element.
A fifth common modern casing is a metal-look casing. A casing with a smooth, matte finish in a dark color (black, charcoal, bronze), designed to look like a metal profile. The metal-look casing is a contemporary option, used in modern interiors with an industrial or minimalist vocabulary.
For sourcing, modern door casings are a stock product at most factories. The casings are available in a range of standard profiles (flat, stepped, flush, shadow gap) and standard sizes, with quick lead times and competitive pricing. Custom profiles are available on longer lead times.
A practical install note: the modern casing requires a precise install. The clean lines of the modern casing mean that any imperfection (a slight gap, an uneven edge, a misaligned miter) is more visible than on a traditional casing. The install should be done with care, with the corners checked for square and the joints filled with paintable caulk.
A practical note on the right casing for the right room. The modern casing's design should be coordinated with the room's other modern elements. A flat casing in a room with a stepped baseboard reads as inconsistent; a stepped casing in a room with a flat baseboard reads as inconsistent. The selection should be deliberate, and the casing should be part of the room's overall composition.
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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.