How to Paint a Solid-Timber Front Door Properly
Every painting blog tells you to leave the front door on its hinges. Convenient — sure. Quick — sure. But the finish will show every brush mark across every panel because you cant get the brush horizontal across the bottom rails of a hung door. I had a job in Caulfield last year where the owner had done exactly this — painted the door in place across a Saturday afternoon — and the finish looked alright from twenty feet but every panel had visible vertical brush drag from where gravity had pulled the wet enamel down. We took the door off, sanded it back, did it flat across a long weekend, and the difference was night and day. Take it off the hinges. Lay it flat. Paint both sides properly. Re-hang it the next day. The job goes from “alright I guess” to “wow when did you do that”.
Aussie front doors have a specific UV problem. A west-facing door in Melbourne, Sydney, Brisbane or Perth gets hit by 4–6 hours of direct sun in summer. Old-school oil-based enamels — the ones your grandfather used — yellow and chalk in 12–18 months under that exposure. The fix is a UV-stable acrylic enamel. Dulux Aquanamel, Wattyl Aqua-Sheen or Taubmans Tradex All Purpose Enamel are all engineered for this. They stay white when they were white, they dont yellow, and they dont chalk into your hand when you knock on the door three years later. Trust me on this — I’ve stripped enough oil-yellowed Federation doors to never recommend oil again.
For a stained or oiled timber door (Cedar, Tassie Oak, Merbau front doors are common on Aussie homes), the analog is Cabot’s Cabothane Water Based Exterior or Sikkens Cetol — same UV stability but clear with timber pigments rather than opaque colour. I love Cabot’s stains for timber; they hold the grain better than most. Same prep, same technique, same off-the-hinges rule.
What you’ll need
- Two trestles or sawhorses, plus a couple of canvas dust sheets
- A drill/driver, plus an offcut of timber to chock the door open while you remove pins
- Sandpaper: 80 grit (if heavily flaked), 180 grit, 240 grit
- Selleys Sugar Soap and methylated spirits
- Selleys No More Gaps for any cracks at panel joints
- Dulux 1Step Primer Sealer Undercoat (water-based) — $55 for 1L
- Dulux Aquanamel topcoat in your colour, semi-gloss or gloss — $90 for 1L
- 50 mm and 25 mm angled sash brushes — Purdy XL or Wooster
- 4-inch high-density foam roller and tray
Step 1: Take the door off the hinges
Open the door. Chock it with a wedge so it cant swing while you work. Use a hammer and an old screwdriver to tap up the hinge pins from below — most modern Aussie hinge pins lift straight out. If they’re rusted in, a bit of WD-40 and patience. With the pins out, lift the door off the hinges (its heavy — get a hand for this from a mate or your partner). Carry it to the trestles. Cover the gap with a sheet of ply screwed across the frame from inside if youll be off the hinges for more than a day.
Step 2: Remove all the hardware
Off comes the door knob, deadlock, peephole, kick plate, weather seal — anything that can be unscrewed. Bag and label each piece. Painting around hardware looks like a rushed job; painting with hardware off looks like a refurb. Same effort either way, but the difference is huge in the result.
Step 3: Strip or sand the existing finish
If the door is painted and the paint is intact, scuff-sand the entire surface with 180 grit. If the paint is flaking or cracking, you need to strip the bad sections back to bare timber with 80 grit and feather the edges, then build back up. If the door is stained timber and your going to paint, sand back to bare timber — paint wont bond reliably to timber oil. Wear a mask, especially if the original paint is pre-1970 (lead risk in Aussie doors built before then). Heres where most people go wrong — they sand into pre-1970 paint without a mask. Dont.
Step 4: Fill any cracks at panel joints
Solid-timber doors have a frame-and-panel construction, and the panels move slightly with seasonal humidity. Where the panel meets the frame, a hairline crack often opens up. Squeeze a bead of Selleys No More Gaps (water-based, paintable) into the crack, smooth with a wet finger, wipe off excess. Let it skin over for 30 minutes before painting. Definately use the paintable version — silicone won’t take paint.
Step 5: Wash, dry, metho
Sugar soap wash, clean water rinse, microfibre dry, methylated spirits wipe. The metho takes off any remaining oil or wax — critical on doors that have been Mr Sheened, oiled by previous owners, or just wiped with a household polish over the years. Acrylic primer wont bond to wax residue and youll see it lifting within a year.
Step 6: Prime — both sides
This is where most people cut corners. Prime BOTH sides of the door, plus the top edge and bottom edge. Why? Moisture enters timber doors through the unsealed top and bottom edges, and unprimed timber on one side wicks moisture into the painted face, lifting the topcoat. Prime everything. Foam roller for flats, brush for the panel reveals and edges. Two coats of primer, sanded with 240 grit between coats. The top and bottom edges dont need to look pretty but they MUST be sealed.
Step 7: First enamel coat — work with the grain, top to bottom
Aquanamel paints on like cream. Pour into a kettle, dip the brush, beat off the excess. For a standard 6-panel door: paint the panels first (their reveals with the 25 mm brush, then the flat with the foam roller), then the horizontal rails (top, middle, middle, bottom — 4 horizontals on a 6-panel), then the vertical stiles (sides and the central stile). Always finish your stroke off the wet edge — never start in the middle of a section. The “panels first, rails second, stiles last” sequence is what gives a doors a uniform finish without lap lines.
Step 8: Don’t forget the door edges
The hinge edge and lock edge of the door are visible when the door is open and they take heavy use. Paint them in the same colour as the face. The top edge — sealed but doesnt need to be neat. Bottom edge — same. The colour of these hidden edges matters less than the seal; the seal stops moisture wicking into the timber and lifting the face paint.
Step 9: Second enamel coat after 4–6 hours
Light 240-grit sand, tack-cloth wipe, second coat. Same panel-rail-stile order. The second coat is the show coat — slow, careful, evenly loaded brush. Foam roller for flats keeps brush marks out of the panel faces. Lovely finish. For related trim work see our paint trim and skirting boards guide, and for cutting around doorframes see cut in paint edges.
Step 10: Re-hang after 24 hours, full cure 7 days
The enamel is touch-dry in 90 minutes but itll mark if you put the door back on hinges and bang it shut on day one. Wait 24 hours, re-hang, refit hardware. Dont slam it for a week. Full UV-stable cure takes about 7 days under typical Aussie conditions; cooler weather extends this to 14 days. Park the kids bikes elsewhere and dont let Toby chew the corner like he tried to do at my own place last winter. Also re-paint the architrave and door frame while your at it — same prep, same two coats — because a freshly painted door against a tired old frame just makes the frame look worse. Five-year maintenance: a sugar-soap wash twice a year, touch up chips within 6 months, full recoat every 5–7 years (or 3–4 on a west-facing door). Recoat is a single fresh enamel coat over a light scuff sand, not a full strip.
When to call a tradie
Most front doors are fine for DIY. Call a professional when the prep is past a weekend painter. Pre-1970 paint that’s flaking — almost certainly lead. Dont sand without HEPA extraction and a proper P2 respirator, get a lead test ($15 Bunnings swab) and if positive call someone with the right kit. Doors framed in fibre-cement architrave or attached to asbestos sheet (1940s–80s homes) — never sand or scrape. Major timber damage — split panels, rotten bottom rail, badly warped — needs a joiner before paint goes anywhere near it. AS 2311 painting-of-buildings is the standard; APAS-certified exterior products are the safe pick.
Common screw-ups
- Painting in place. Vertical brush drag on every panel. Off the hinges, flat on trestles.
- Skipping the top and bottom edges. Moisture wicks in, topcoat lifts. Prime all six surfaces.
- Oil enamel on a sunny door. Yellows in 18 months. UV-stable acrylic only.
- Re-hanging too early. Marks at every hinge contact point. 24 hours minimum, 48 better.
- Forgetting the architrave. Fresh door against tired frame makes the frame look worse. Do both.
Cost & time
$180–$280 in materials (1L primer, 1L Aquanamel topcoat, sandpaper, brushes, roller, fillers). Time: long weekend. Friday evening off the hinges and clean. Saturday morning prime, afternoon second prime coat. Sunday morning first topcoat, afternoon second topcoat. Monday morning re-hang. The door is off for three nights.
The Jen rule — wrap
Hinges off, edges sealed, both sides painted. Those three rules separate a 5-year-perfect front door from one that looks tired in 18 months. The west-facing UV is what kills cheap finishes — Aquanamel handles it because the resin is engineered for outdoor exposure, but only if the substrate is sealed all the way around. Cut the corner, get the cracking. Take the long weekend, do it properly, and your door reads brand-new every time someone knocks. Got a front door transformation worth showing off? Send us a write-up.
