Architrave

An architrave (sometimes called door casing or window casing in the US) is the decorative trim that frames a door or window opening. It covers the gap between the door or window frame and the surrounding wall, giving the opening a clean, finished look.

Why architraves matter in a renovation

When you renovate a room, you will almost certainly need to deal with architraves. If you’re replastering walls, fitting new doors, or replacing windows, the existing architraves usually need to come off — and they often get damaged in the process. Even if your walls and doors stay the same, updating tired-looking architraves is one of the simplest ways to refresh a room.

Common architrave profiles

• Ogee — a classic curved profile with an S-shaped edge, the most popular traditional style
• Torus — a rounded, half-circle profile that works well in older properties
• Chamfered — a simple angled edge, clean and modern
• Square-edge — the most minimal option, a flat board with sharp corners
• Victorian / Period — ornate profiles that match the moulding styles of period properties

Choosing the right architrave

Your choice of architrave should match the style of your skirting board and any other mouldings in the room. Using the same profile throughout creates a cohesive look. Architraves are typically narrower than skirting boards — 60-80mm wide is standard, though period properties often have wider, more decorative versions.

Installation

Architraves are a second-fix item, meaning they go on after plastering and painting the walls. Your carpenter or joiner will mitre the corners at 45 degrees for a neat join. If you are getting new doors fitted, ask your contractor to include architrave fitting in the quotation — it is usually part of the same job.