How to Paint a Six-Panel Door in Order
Why this matters
A six-panel door has fifteen separate parts on each face (six panels, three muntins, four rails, two stiles), and every one of them has a grain direction. Paint them in the wrong order and the brush has to cross a joint that has already started to set, which leaves a cross-grain stroke right where a rail meets a stile. Nobody notices it while the door is wet. Everyone notices it in the hallway light two days later, and on a semi-gloss enamel it cannot be brushed out, only sanded and recoated. The order below is not tradition for its own sake: each step finishes a part whose edges the next step covers with clean, with-the-grain strokes.
How the door is built, and why that sets the order
A panel door is a frame of stiles (the two full-height verticals at each side) and rails (the horizontals that run between the stiles), divided by muntins (the short center verticals between the rails) and filled with panels, each framed by a molded profile. On a real wood door the rails butt into the stiles and the muntins butt into the rails. A molded hollow-core door imitates the same layout and the same grain direction in its embossing.
Paint follows the joinery. Every joint is a line where one member's grain stops against another's. If the member that runs through (the stile) is painted last, its brush strokes run straight past the ends of everything that butts into it, and the joint lands as a crisp line between two with-the-grain finishes.
six-panel door face, number = painting order
+----+--------------------------+----+
| | 3 top rail | |
| +----------+----+----------+ |
| | 1 small | 2 | 1 small | |
| +----------+----+----------+ |
| | 3 frieze rail | |
| +----------+----+----------+ |
| | 1 tall | 2 | 1 tall | |
| 4 | | | | 4 |
| | | | | |
| +----------+----+----------+ |
| | 3 lock rail | |
| +----------+----+----------+ |
| | 1 lower | 2 | 1 lower | |
| +----------+----+----------+ |
| | 3 bottom rail | |
+----+--------------------------+----+
1 panels: profile, then field (6)
2 center muntins, vertical strokes (3)
3 rails, horizontal strokes (4)
4 stiles, full height, vertical (2)
5 edges last (not shown)
Before the brush: hang it or paint it in place
Off the hinges, laid flat on horses or hung on door rods. Enamel levels better on a horizontal surface and sags less, and the edges are reachable without masking the jamb. The cost is time: one face must dry to recoat per the product data sheet before you flip it, so a door off its hinges usually takes a day per coat for both faces. Mark which face is which with a small piece of tape on the hinge edge before you pull the pins, and keep the hinge screws in a bag taped to the door.
In place. Faster, because both faces and the edges can be done in one visit, but every stroke fights gravity and the panel moldings collect paint at their bottom corners. Wedge the door open with shims under the bottom so it cannot swing into your wet face.
Either way:
- Remove the lockset and strike rather than masking them. Masking a knob takes as long as removing it and leaves a ragged edge at the rose.
- Clean, then scuff. Wipe the faces with a degreasing cleaner (hands touch a door near the lock rail every day), rinse, dry, then scuff sand the old enamel so the new coat has something to grip. Test whether the old coat is oil or latex first; see 'How to Test Glossy Trim and Prime Latex Over Oil'.
- Pre-1978 home. Presume lead in the existing coatings until an EPA-recognized test kit or a certified renovator's sample says otherwise; scuff sanding a presumed-lead door is RRP work under 40 CFR 745 Subpart E. See 'Lead Paint RRP Protocol Reference'.
- Fill dents and the latch-side gouges before enamel; see 'How to Fill Nail Holes and Dents in Trim Before Enamel'.
The sequence, part by part
Panels: profile, then field. Brush the molded profile around one panel first, working paint into the cove with the tip of a 2 inch angled sash brush, then pick out the bottom inside corners where paint pools. Then fill the flat field of that panel and tip it off with the grain, which on a raised panel runs vertically. Do all six panels this way, top to bottom. Profiles first because they hold the most paint and run the most; you want to see and catch a sag at the bottom corner while the field around it is still wet.
Center muntins. Brush the three short verticals between the panel pairs, strokes vertical, stopping cleanly at the rail above and below. Overrun from the panel profiles gets pulled into the muntin here and tipped off vertically.
Rails. Brush the four horizontals full width from stile to stile, strokes horizontal. Where a rail meets a muntin end, the horizontal tip-off covers that joint line. Where a rail meets a stile, let the rail strokes run just onto the stile; the stile will cover them.
Stiles. Brush each stile full height in long vertical strokes, top to bottom. These strokes cover the rail overrun from step 3 and leave a straight vertical line at every rail-stile joint, which is the finish test.
Edges. Brush the hinge edge and the latch edge last, and the top edge if you can reach it. Wipe any paint that wrapped onto the face from the edge before it sets; a ridge at the face edge is the most visible defect on a door that is otherwise right.
Lay on, tip off. Every part follows the trim method: load, lay paint across a short length, then tip off in one long stroke toward the wet paint, never back over a setting film. The method and its timing are set out in 'How to Brush Enamel on Baseboard and Casing'. What this card adds is which part comes next.
The latch-edge color rule
When a door's two faces are different colors, a common convention is: the latch edge is painted the color of the face on the side the door swings into, and the hinge edge takes the color of the opposite face. The reasoning is what each side sees: with the door open into a room, the latch edge stands out in that room. Confirm the convention with the customer before you paint, because some designers flip it, and repainting an edge after the hardware is back on is the job nobody budgets for.
When both faces are the same color, the rule is moot except for one thing: paint both edges at the face color, not a leftover wall color.
Worked example: a bedroom door with a black hallway face
The job. A molded hollow-core six-panel door, 30 inches wide by 80 inches tall, between a hallway and a bedroom. The customer wants the hallway face satin black, the bedroom face semi-gloss white to match the bedroom trim. The door swings into the bedroom. House built in 1994, so the presumption of lead does not apply. Painted in place, latex enamel both colors, previous coat tested as latex.
Order of the visit. Lockset and strike removed, faces cleaned and scuffed, dust wiped. White first on the bedroom face, because black laid second covers a stray white wrap at an edge in one coat, while white over a black wrap takes several. Panels (six), muntins (three), rails (four), stiles (two) in the order above, with the door wedged open into the bedroom.
The edge call. The door swings into the bedroom, so by the convention the latch edge goes white with the bedroom face and the hinge edge goes black with the hallway face. The lead confirmed it with the customer, who had assumed both edges would be black; once she pictured the open door standing in the white bedroom with a black latch edge, she agreed to white.
The defect that showed. On the black face, painted after the white was dry to recoat per the data sheet, the apprentice brushed the stiles before the lock rail. The lock rail strokes then had to run horizontally across the stile joint at both ends, over stile paint that had started to set. In the hallway light the next morning, both ends of the lock rail showed a short band of horizontal brush marks across the vertical stile grain, each a couple of inches long.
The fix. The marks were dry to recoat by then. The lead had them sanded lightly with a fine sanding sponge just at the two joints, dust wiped, and the second coat of black laid in the correct order: panels, muntins, rails, stiles. The stile strokes covered the rail ends and the joints came out as straight vertical lines.
What would change the answer. On a solid wood door with real stile-and-rail joinery, the order is the same, but the joint lines are real cracks that open and close with the seasons; do not try to fill them with caulk, which cracks there anyway. On a flush (flat slab) door, there is no joinery to follow: roll the face with a fine foam or short-nap cover and tip it off full height with a brush in one direction, top to bottom.
Where the order flexes
- Raised panels whose field grain runs horizontally, rare on interior doors but found on some old or custom ones: tip the field with its own grain, whatever direction that is. The rule is grain, not vertical.
- A door painted in place with a short open time (warm, dry room, fast enamel): work one face at a time, never start the second face until the first is complete, and keep the face small enough to finish within the open time on the product data sheet.
- Exterior entry doors. Same order. Many door makers' warranties require all six sides sealed, top and bottom edges included; read the door's instructions, and do the bottom edge with the door off its hinges.
How to tell the door is right
- Every rail-stile joint is a straight vertical line, with vertical brush marks on the stile side and horizontal marks on the rail side. No cross-grain strokes anywhere.
- No sags at the bottom inside corners of the panel moldings. Check each of the six with a low light; that is where paint collects.
- No ridges at the face edges where paint wrapped from the door edge.
- Edges match the agreed color rule, and the hardware goes back on only after the coat is dry to handle per the data sheet, so the rose does not print into the film.
References
- 40 CFR 745 Subpart E (EPA Renovation, Repair and Painting rule)
- See related: Lead Paint RRP Protocol Reference
- See related: How to Brush Enamel on Baseboard and Casing
- See related: How to Test Glossy Trim and Prime Latex Over Oil
- See related: How to Fill Nail Holes and Dents in Trim Before Enamel