Free delivery within 50 miles of our Glasgow store · £50 beyond

04 Oct 2026

Wall Panel 21B Grey Seamless: joints, moisture and one query

Wall Panel 21B Grey Seamless: joints, moisture and one query — Langham Furniture journal

This guide is about

Wall Panel 21B - Grey - Seamless - 240cm - (1 pack / 8pcs)

View the product

Wall Panel 21B in grey is a flat, tongue-and-groove PVC panel rather than a slatted one: 30 x 240 x 1.2cm per plank, eight planks a pack, 5.76m2 covered. Before any of that is useful, though, there is a sentence in its description to settle.

A grey panel described as oak: settle this first

The description for this panel says each slat shows a three-sided oak veneer. The product itself is called grey. The likely explanation is shared text: the oak, grey and white oak listings in this format carry that paragraph word for word, so an oak reference written for one of them has been carried onto a grey panel. It matters for two reasons. If the face really were a wood veneer it would not be grey, and the word veneer sits oddly on a panel the same listing calls PVC. Ask the shop to confirm what the grey face is and whether the finish is carried around three sides, because a three-sided finish is what lets a plank turn an external corner without a trim. Do that before ordering, not after.

What the listing does give you

As listedFigure
Plank size30 x 240 x 1.2cm
Pieces per pack8
Area covered5.76m2 per pack
JointTongue and groove

Eight planks at 30cm make a 2.4 metre run at the listed 240cm height. At 1.2cm they are thinner than the 1.5cm slat panels in the same range, which is what makes them easier to take round a doorway: 1.2cm will usually sit inside the projection of an existing architrave, where a thicker slat panel would stand proud of it.

The moisture line, read carefully

The description says the panel suits areas where moisture resistance and easy maintenance matter. No figure or approval is published with that: no bathroom or shower rating, no fire classification, no cleaning guidance. Grey panelling is an obvious candidate for exactly those rooms, so this is the gap most worth closing. Ask the shop what the panel is approved for, and where it should not go, before you commit a bathroom wall to it.

Where the joints land on your wall

Flat planks have no shadow gaps to hide behind, so the layout is what you see. Work out two numbers: your wall width divided by 2.4 metres gives the packs, and divided by 0.3 metres gives the plank count, with the remainder being the cut. A remainder of a few centimetres makes an awkward final sliver, and the tidy answer is to trim both end planks equally so the run is symmetrical. Start from a plumb line struck with a level rather than from the corner of the room, since few corners are plumb and the tongue-and-groove joint will carry any lean all the way along the wall.

What it sits with

Trims for the top edge, external corners and stopped ends are in panel trims and fittings, with the wall panel adhesive beside them; no fixing method or panel weight is stated on the listing, so check how it is meant to go up on your wall. In the same format, Wall Panel 21E in black is the darkest of the group and Wall Panel 21A the oak one.

The measurements, the photographs and the delivery options are on the Wall Panel 21B grey page, and the rest of the panels are in slat and acoustic panels. Delivery is free within 50 miles of our Glasgow store and £50 beyond.

Live Chat could not load — it may be blocked by your browser. Email info@langhamfurniture.com instead.