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BRITAIN BENEATH · GUIDE · 8 OCTOBER 2026

Chatham’s Warships Began on a Workshop Floor

Chatham’s shipwrights drew hulls at full size on a workshop floor. Mastmakers worked below them, while other trades supplied the sails, rope and iron fittings.

Based on published records and visitor information. We have not visited these places.

AI-generated illustration

AI-generated illustration. Ship builders drawing a full-size hull in a design room. Imagined scene, not a real site view.

An imagined ship-design room shows builders drawing a hull at full size. The people, room and lines are not exact copies of Chatham or a specific ship.

AI-generated for Britain Beneath · 2026-09-27. Resized and converted to WebP for faster loading; no cropping.

Drawing a ship at full size

Before workers built a warship at Chatham, they drew the shape of its hull—the main body of the ship—at full size on a workshop floor. The room was called the Mould Loft. Downstairs, mastmakers shaped the long wooden masts that would hold the sails. Parts of the building itself used wood taken from older warships.

The Dockyard Trust dates the Mast House and Mould Loft to the mid-eighteenth century. Its two floors served different stages of preparing a ship, while other workshops made sails, rope, anchors and chain.

Today the building forms part of Command of the Oceans. The gallery explains how those trades fitted together. Elsewhere in the dockyard, rope is still made in the old Ropery, while the former Smithery holds exhibitions.

Making sails and flags

The Sail and Colour Loft gave workers broad floors on which to make and repair sails, covers, awnings and flags. Demand brought more of this work into the Navy’s own dockyards.

Women formed a separate flag-making workforce. They became known as the Ladies of the Sail Loft. In 1974, the Trust records 31 sailmakers and 53 women colour makers. Labourers and apprentices worked alongside them. The jobs lasted long after ships stopped relying on sails as they once had.

The visitor pages checked here do not offer a general room tour of the loft.

Rope is still made here

Workers needed a long building in which to lay out strands and make long lengths of rope. Ships used that rope to hold and control sails and for many other jobs aboard.

Rope is still made here. The Trust says its Master Ropemakers supply customers today. The old building continues to house a working trade.

Dockyard entry includes the gallery. A separate 30-minute Ropery Experience is booked on arrival and takes visitors onto the ropewalk. Live demonstrations have a weekday programme, excluding bank holidays. Check which activity is offered on your day. Gallery entry does not promise a demonstration.

The ships needed iron too

Ships also needed iron. No.1 Smithery made anchors, chain and other ironwork. More workshops were added as ships used more metal. Steam-powered tools arrived during the nineteenth century.

The Smithery remained a workplace into the twentieth century. It now houses exhibitions and collections, included in dockyard entry. Its visitor programme differs from the working Ropery’s activities.

Planning a dockyard visit

Start with Command of the Oceans for the shipbuilding displays. The Ropery offers a working trade and booked experiences. No.1 Smithery holds exhibitions in the building where workers once made ships’ ironwork.

Check the dockyard’s calendar, closure notices and access advice for each gallery. Book Ropery activities as directed on arrival. Not every old workshop is open to visitors.

Follow the official visitor route rather than the nearest map point. The buildings explain how much work stood behind a launched ship: drawing its form, shaping its masts and making the things that let it sail.

Sources and further reading

Based on Chatham Historic Dockyard Trust’s histories and visitor pages, checked on 23 September 2026. Its pages give different dates for building the Smithery, so we use a broad period. We have not visited or checked individual sessions with staff. Read the official programme and closure calendar before travelling. The 2 place records below give more information.

You can follow the links to read the original sources. Sources and permissions.

Places in this story

Industrial

Chatham Dockyard No.1 Smithery

Near Rochester

Researched guide · September 2026

Visitor access offered

Industrial

Chatham Dockyard Ropery

Near Rochester

Researched guide · September 2026

Visitor access offered