Blackwater Forge

Rooksmoor Mills · Stroud · one anvil since 2013

Blackwater Forge

Bladesmith & architectural ironwork by Effie Blackwater. This fire is live — the bar in it is cooling as you read. Steel announces its temperature in colour, and everything in this shop runs on knowing what the colours mean.

Bar at the tip 20 °C Black heat

Or click the anvil. Sparks obey gravity — and cold bars don’t spark.

How to read the bar

The shop’s only thermometer. Colour is temperature — the marker is the bar in the fire above.

From the ledger · 2013–2026

Commissioned work

Three commissions, three scales of the same trade. Nothing on this page is photographed — the drawings below are the shop’s own elevations, and the damascus is drawn layer by layer, the way it was folded.

Elevation · 1:20 · BWF-2024-07

BWF-2024-07 · Northamptonshire

The Harrowden gate

Double-leaf entrance gate for Harrowden Park. 4.6 metres across, 611 kilograms of hot-rolled EN3 bar — drawn, scrolled and set entirely by hand. Ninety-six scrolls, two hundred and fourteen rivets, and no visible welds: every joint is a collar or a mortise-and-tenon, the way estate gates were built when they were expected to outlive the estate.

Span
4 620 mm
Mass
611 kg
Joints
96 scrolls · 214 rivets
Finish
zinc spray + linseed black wax
Hours
1 140 over nine months
Price
£48,500

BWF-2025-41 · sold — waitlist open

Gyuto Nº 41

A 210 mm chef’s knife in 168 layers of 1084 and 15N20, folded and drawn into a ladder pattern. The bright bands are nickel steel, the dark are carbon — and the wave below is the actual geometry of the fold, not a texture. Quenched edge-first in warmed canola at 815 °C; tempered twice at 205 °C, until the polished tang turned exactly straw.

Pattern as folded · 168 layers · BWF-2025-41
Edge
210 mm gyuto
Layers
168 · 1084/15N20
Hardness
61 HRC at the edge
Handle
bog oak, copper ferrule
Heat
815° quench · 205° temper ×2
Price
£1,450
Flight one of three · 1:25 · BWF-2023-19

BWF-2023-19 · Bath

The Vessey stair rail

Fourteen metres of continuous handrail through three flights of a Georgian townhouse on Vessey Lane. Forty-two hand-tapered balusters and a wreathed volute over the curtail step — no baluster interchangeable with its neighbour, each fitted to its own tread by eye. Burnished and waxed, never painted. The steel keeps its hammer marks; that is the point of it.

Run
14.2 m over three flights
Balusters
42, hand-tapered
Newel
wreathed volute, curtail step
Finish
burnished + beeswax
Hours
640
Price
£27,900

One bar of steel, in order

The five heats

The temperatures are real, and the colours are what those temperatures look like on steel. This is the entire craft. Everything else is repetition.

  1. Heat 1

    Forge

    1 250 °C

    bright yellow

    Out of the fire soft as clay. The first blows do the shaping, and you have perhaps forty seconds before the bar drops out of yellow and starts arguing back.

  2. Heat 2

    Draw out

    1 050 °C

    orange

    The bar lengthens a few millimetres a blow and the section squares up. Rhythm beats force — the anvil returns half of every strike, if you let it.

  3. Heat 3

    Normalize

    830 °C

    cherry · three cycles

    Past critical, then cooled in still air, three times. Each cycle shrinks the grain — and fine grain is the difference between a blade and a bar that merely looks like one.

  4. Heat 4

    Quench

    815 °C

    cherry, then violence

    Edge-first into warmed oil. The surface flashes flame for half a second; the steel falls from 815° to under 200° in four, and comes out Rockwell 65 — glass-hard, and nearly as brittle.

  5. Heat 5

    Temper

    205 °C

    straw gold · 2 h, twice

    Two hours in the oven, twice over. Polished steel passes pale straw and is pulled at straw gold — 205° exactly, Rockwell 61. Hard enough to hold an edge, tough enough to keep it.

A different thermometer for low heat — oxide colours on polished steel. One shop, one rule: pull it at straw.

At the fire · autumn 2026

Courses

Four people, a fire between each pair, every tool in the rack. Steel, fuel, aprons and tea are included. No experience needed — heat is a fair teacher.

One day, one knife

Forge, grind, harden and temper a full-tang camp knife from 1084 bar. You leave with a finished blade, an edge you made, and a burn story that is probably not true.

  • Sat 12 Sep 2026
  • Sat 10 Oct 2026
  • Sat 7 Nov 2026
  • 09:00–17:30

£240

4 places per date

Damascus weekend

Stack, weld and fold a 168-layer billet of 1084 and 15N20, then forge it into a blade and etch the pattern you made. Saturday ends at welding heat — wear cotton, not fleece.

  • 26–27 Sep 2026
  • 24–25 Oct 2026
  • two days, 09:00–18:00

£520

4 places

The scroll & the collar

Six Thursday evenings of architectural ironwork — scrolls, collars, rivets, tenons — building a fire screen panel by panel. By week six you will read heat without looking at the fire.

  • Thursdays from 8 Oct 2026
  • six weeks, 18:30–21:30

£380

6 places

Hold a place with a £60 deposit — write to courses@blackwaterforge.co.uk. Under-16s forge free alongside a paying adult, one hammer each.