Dry Lining vs Plastering: What's the Difference?

Dry lining is fixing plasterboard to walls or ceilings without wet plaster, then finishing the joints. Plastering (in the traditional sense) means applying wet plaster — usually a backing coat followed by a skim — to create a seamless surface. The main difference is that dry lining is a dry, board-based finish, while plastering is a wet, trowelled finish. Many walls use both: the board is dry-lined first, then skimmed.

What dry lining is

Dry lining means attaching plasterboard to a wall or ceiling using nails, screws, or adhesive (dot and dab). The boards give a flat, smooth surface without any wet plaster being applied to the wall itself. The joints between boards are then filled and taped.

There are two common ways to finish dry lining:

• Tape and joint — only the joints and screw heads are filled, leaving a flat but slightly textured surface
• Skimmed — a thin coat of wet plaster is applied over the whole board for a fully smooth, seamless finish

Our dot and dab walls page covers the adhesive-fixed method in detail.

What plastering is

Traditional plastering applies wet plaster in layers — typically a backing coat (bonding or browning) for build and flatness, then a thin skim coat for the smooth finish. It's used over bare masonry, brick, or after removing old plaster. The result is a hard, seamless surface that takes paint evenly.

Key differences

| | Dry lining (taped) | Plastering (skimmed) | |---|---|---| | Method | Boards fixed dry | Wet plaster applied | | Finish | Flat, slightly textured joints | Fully smooth, seamless | | Speed | Faster | Slower (drying time) | | Thickness | Thin (board depth) | Build coat + skim | | Best for | Stud walls, over existing surfaces | Bare masonry, uneven walls | | Sound/thermal | Can add insulation behind board | Solid, dense finish |

Which do you need?

It depends on the wall and the finish you want:

• Bare brick or block walls — usually plastered (backing coat + skim) because the wall needs a build coat to be flat
• Stud or timber-frame walls — dry-lined with plasterboard, then skimmed
• Over existing sound plaster — can be re-skimmed, or over-boarded (dry-lined) if the surface is very uneven
• Where speed matters — dry lining is faster because there's no wet backing coat to dry
• Where a premium finish matters — a skimmed finish is smoother and more uniform than a taped joint finish

Many jobs combine both: the wall is dry-lined with board, then skimmed for the best finish. See our skimming walls guide for what skimming involves.

Dry lining vs plastering vs drywall

"Drywall" is the term more commonly used in North America for what the UK calls plasterboard or dry lining. The comparison between a wet-plastered wall and a board-finished wall is the same — covered in our plastering vs drywall article.

FAQ

Is dry lining the same as plastering? No. Dry lining fixes boards dry; plastering applies wet plaster. Many walls are dry-lined then skimmed, so they use both.

Do you need to skim after dry lining? Not always. Taped joints give a paintable finish, but a skim gives a smoother, more uniform surface. It depends on the finish you want.

Which is cheaper, dry lining or plastering? Dry lining is usually faster, so labour can be lower. But a skimmed finish costs more than a taped one. The right choice depends on the wall and the desired finish — see plasterboard costs.

Can you dry line over existing plaster? Yes — boards can be dot-and-dabbed over sound existing plaster to give a fresh flat surface without removing the old plaster.

Is dry lining as good as plastering? For the right wall, yes. A skimmed dry-lined wall gives a finish indistinguishable from traditional plastering. Bare masonry usually needs a wet backing coat.

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Not sure whether your walls need dry lining, a re-skim or a full re-plaster? Send London Plastering Service a few photos and the wall type and we'll advise on the right approach, with a free quote.