# Farrow & Ball Dead Flat

Emulsion paint · Farrow & Ball

Farrow & Ball Dead Flat covers up to 12 m² a litre and takes 2 coats, by Farrow & Ball's own figures.
Source: Farrow & Ball, Farrow & Ball Dead Flat product advice sheet, read 11 October 2026.

What it is for, in the maker's words: “Dead Flat is multi-surface and can be used across walls, woodwork and radiators for an effortless full-room transformation” (Farrow & Ball Dead Flat product advice sheet, read 11 October 2026).

The walls of a 3 × 4 m room, 2.4 m high, need 5.641 L: 1 × 5 L + 1 × 2.5 L to buy. At 10 m² a litre, BuildBatch's generic example for a wall that is not the maker's best case, the same room needs 6.77 L: 1 × 5 L + 1 × 2.5 L.

## Coverage

Farrow & Ball states up to 12 m² a litre. The maker's words: “Coverage Rate (m2/l per coat): Up to 12”.
- Bare, rough or absorbent surfaces: A maker's coverage is their best case, on a smooth sealed surface: bare, rough or absorbent walls take more.
- A strong change of colour: Farrow & Ball says: “Darker/stronger colours may require additional coats”. Each extra coat is the paint of one coat again.
- Waste and touch-ups: The room table adds 10% for what stays in the tray and on the roller and for touching up: BuildBatch's generic example, not the maker's. The tin-by-tin figures add nothing.
- The ceiling and the woodwork: Neither is in these figures. Each is a separate paint and a separate line on a list.

## Coats

Farrow & Ball gives 2 coats for Farrow & Ball Dead Flat, in these words: “Darker/stronger colours may require additional coats”.

## Tin sizes

| Tin | One coat | 2 coats |
|---|---|---|
| 2.5 L | up to 30 m² | up to 15 m² |
| 5 L | up to 60 m² | up to 30 m² |

Arithmetic on the maker's figure: the litres in the tin times the coverage per litre, with nothing added for waste.

## How many tins for a room

| Room | In feet | Walls to paint | Paint needed | Tins to buy | At 10 m² a litre |
|---|---|---|---|---|---|
| 2.5 × 3 m | 8.2 × 9.8 ft | 23.57 m² | 4.321 L | 1 × 5 L | 1 × 5 L + 1 × 2.5 L |
| 3 × 3 m | 9.8 × 9.8 ft | 25.97 m² | 4.761 L | 1 × 5 L | 1 × 5 L + 1 × 2.5 L |
| 3 × 4 m | 9.8 × 13.1 ft | 30.77 m² | 5.641 L | 1 × 5 L + 1 × 2.5 L | 1 × 5 L + 1 × 2.5 L |
| 4 × 4 m | 13.1 × 13.1 ft | 35.57 m² | 6.521 L | 1 × 5 L + 1 × 2.5 L | 2 × 5 L |
| 4 × 5 m | 13.1 × 16.4 ft | 40.37 m² | 7.401 L | 1 × 5 L + 1 × 2.5 L | 2 × 5 L |

Each room is 2.4 m high with one internal door and one window of 1.2 × 1.1 m taken off; 2 coats; 10% extra for waste, BuildBatch's generic example. Worked out by the planner when the site was built.

Start a list for a 3 × 4 m room with this paint's figures: https://buildbatch.co.uk/start/#v=1&job=paint&walls=paint&ceiling=none&trim=none&units=m&length=4&width=3&height=2.4&door=0.762x1.981&window=1.2x1.1&surface=sound&subfloor=unsure&ground=unsure&fitting=unsure&wallpaint=custom&wallpaint.coats=2&wallpaint.coverage=12&wallpaint.extra=10&wallpaint.tins=2.5,5&wallpaint.examples=extra&end=21

## Where to buy it

The page has the shops' own searches for it, and any link there that is paid for is marked Ad: https://buildbatch.co.uk/products/farrow-and-ball-dead-flat/#where-to-buy. BuildBatch sells nothing and compares no prices.

## Questions

**How much does a litre of Farrow & Ball Dead Flat cover?** Farrow & Ball states up to 12 m² a litre for Farrow & Ball Dead Flat (Farrow & Ball Dead Flat product advice sheet, read 11 October 2026). A maker's coverage is their best case, on a smooth sealed surface.

**How much does a 5 litre tin of Farrow & Ball Dead Flat cover?** At the maker's figure a 5 L tin covers up to 60 m² in one coat, or up to 30 m² in 2 coats. That is the litres times the coverage per litre, with nothing added for waste.

**How many coats does Farrow & Ball Dead Flat need?** Farrow & Ball gives 2 coats for Farrow & Ball Dead Flat, in these words: “Darker/stronger colours may require additional coats”.

**How many tins of Farrow & Ball Dead Flat for a 3 × 4 m room?** The walls of a 3 × 4 m room, 2.4 m high, need 5.641 L: 1 × 5 L + 1 × 2.5 L to buy. At 10 m² a litre, BuildBatch's generic example for a wall that is not the maker's best case, the same room needs 6.77 L: 1 × 5 L + 1 × 2.5 L. The room is 2.4 m high with one door and one window taken off, 2 coats, with 10% extra for waste.

**What is Farrow & Ball Dead Flat for?** Farrow & Ball says: “Dead Flat is multi-surface and can be used across walls, woodwork and radiators for an effortless full-room transformation” (Farrow & Ball Dead Flat product advice sheet, read 11 October 2026).

**What tin sizes does Farrow & Ball Dead Flat come in?** The catalogue lists 2.5 L and 5 L. A shop may not stock every size.

## Where the figures come from

- Farrow & Ball, Farrow & Ball Dead Flat product advice sheet (https://www.farrow-ball.com/media/wysiwyg/Product-Advice-Sheets/Paint-primers/GBDFL.pdf): coverage, coats and what it is for, read 11 October 2026.

Written with AI tools; not yet checked by a tradesperson. Follow the tin's own instructions.

The page: https://buildbatch.co.uk/products/farrow-and-ball-dead-flat/