If you don’t want to pay a fortune for custom wainscoting, here’s a better way: order some PU mouldings online and do it yourself. For very little money, you can give your stairwell that cozy French vibe – and the result is absolutely gorgeous.
What you’ll need
For the core material, grab 3cm and 6cm wide PU lines (pick the lengths based on your wall size – they’re cost‑effective and easy to work with). You’ll also need Sika construction adhesive, gap‑filling caulk, and painter’s tape. Tools: a spirit level, tape measure, chalk line, small brush, miter cutter, and sandpaper. As for paint, choose a washable, durable topcoat – preferably one that allows touch‑ups later, so maintenance is a breeze.
Step‑by‑step guide
1. Prep work
Make sure the first coat of primer on your wall is completely dry – that way the PU lines will stick firmly. Use your tape measure, level, and chalk line to mark out the wainscoting pattern you want (I’ve included our measurements in the picture below – feel free to screenshot it for reference).
2. Cut and smooth the lines
Using the miter cutter, trim the PU lines to the required angles according to your marks. Precision matters here – any off‑angle cut will leave gaps at the joints. Then lightly sand the cut edges to remove any tiny burrs, so everything fits together cleanly.
3. Glue and install
Apply construction adhesive to the back of each prepared line, then press it onto the wall following your guide marks. Once it’s in place, secure it with painter’s tape to stop it from slipping. After about half a day, fill the seams between lines with caulk.
4. A critical pitfall to avoid
When you measure the waistline height for the stairwell, always start from the first step and make sure the distance from that step to the waistline matches the distance from the last step to the waistline. Otherwise, the joints won’t align properly – and trust me, you don’t want to redo it like I had to.
5. Topcoat application
After the first coat of topcoat dries, you can ask your painter to tint the second coat slightly darker if you like – a deeper shade adds a nice richness. Go for a scrubbable, durable finish that you can wipe clean when dirty and easily patch if scratched.
The final look
With just a fraction of the usual cost, you get a stairwell wainscoting full of French charm – and even a DIY newbie can pull it off. Think of all the money you save for the soft furnishings – isn’t that worth it?
