How to Paint a Panelled Door in London: Technique and Sequence

Why Panelled Doors Require a Specific Approach

The panelled door is the defining joinery element in London's Georgian, Victorian, and Edwardian housing stock. A four-panel or six-panel door — proportioned correctly and painted well — is a thing of considerable beauty. Painted badly, with runs pooled in the mouldings, brush marks crossing the grain, and a muddy finish in the recesses, it becomes a liability that undermines the whole interior.

The key insight is that a panelled door is not a flat surface. It is a composition of different planes, different grain directions, and different surface speeds, all of which need to be addressed in a specific sequence. The traditional name for this sequence — the cross and bible technique — describes the order in which you work each section.

Preparation Before the First Brush Stroke

Remove the door from its hinges if at all possible. Painting a door in place is significantly harder than painting it horizontal, and the risk of runs on the panel faces and mouldings is much higher when working vertically. A door laid flat on trestles allows you to load the brush confidently without fear of sags.

Wash the entire door with sugar soap and allow to dry. Sand back with 120-grit paper working in the direction of the grain on all flat surfaces. On the moulded sections — the ovolo or bolection moulding around each panel — use a folded piece of 120-grit to follow the profile. Remove any built-up paint in the mouldings with a shave hook.

Fill any cracks, splits, or deep marks in the timber with fine surface filler. On period doors in London, pay particular attention to the junction between the panel and the moulding — this is where movement cracks most commonly appear. Use a flexible filler in these locations, not a rigid powder filler.

Spot-prime any bare timber. Sand the primed areas with 180-grit once dry.

The Cross and Bible Sequence

The cross and bible technique refers to a specific order of work that prevents wet paint from being dragged or touched during the process. The sequence is:

1. Panels — begin with the top panels first, working left to right. Within each panel, paint the mouldings first with the tip of the brush, then the flat face of the panel itself, laying off with light strokes parallel to the grain. Complete each panel before moving to the next.

2. Middle horizontal rail — this is the cross piece that separates the upper and lower panels. Work from left to right, laying off horizontally.

3. Upper and lower hanging and closing stiles — the vertical outer members. Work from top to bottom, laying off in the direction of the grain (vertically).

4. Top and bottom rails — the horizontal members at head and foot. Lay off horizontally.

5. Lock rail — if present (the wide rail at door handle height), paint last of the horizontal members, laying off horizontally.

The bible section of the name refers to the hinged stile and the lock stile, painted after all other sections so that any inadvertent touches to adjacent sections during brushwork are onto already-dry surfaces.

Brush Technique for a Flat Finish

Use a 50mm or 63mm quality brush — Purdy XL or Hamilton Perfection are reliable choices. Load the brush to approximately half its length and apply paint with moderate pressure, working it into the surface. Then lay off with very light strokes using only the tips of the bristles, lifting the brush at the end of each stroke.

In the mouldings, use the tip of the brush to work paint into the recess, then remove excess with a light dragging stroke along the length of the moulding. Excess paint pooled in mouldings is the primary source of drips and runs on a panelled door. Check the mouldings again five minutes after painting each panel; runs that have started to develop can still be picked up and laid off at that point.

Between Coats

Allow the primer or undercoat to harden fully — 16 to 24 hours is standard in a London interior. Cut back lightly with 240-grit and wipe with a tack cloth before the topcoat. Inspect the panel faces in raking light from a window: any brush marks or nibs that remain will be telegraphed through the topcoat if not addressed.

Apply the topcoat in the same sequence, with the same light laying-off technique. A second topcoat — applied only after the first has fully cured — produces a markedly better result on a panelled door than a single heavy coat.

Rehinging and Fitting

Refit the hinges only when the topcoat is fully hard, not merely dry. In warm London conditions in summer, a water-based satinwood may feel dry in two hours but will not resist the pressure of hinge screws without denting for several hours more. In winter, allow longer.

For professional panelled door painting in London period properties, contact us here or request a free quote.