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image SM 77/1/67

Reference number

SM 77/1/67


[17] Working drawing for the roof timbers of the new Guard Room, 1792-93


Plan of Roof showing timbers


bar scale


as above and Guard Room St James's, Reference / [blue] Iron / [sepia] Oak / [yellow] Fir / [light red] Wall

Signed and dated

  • 1793

Medium and dimensions

Pen, light red, yellow, sepia and blue washes on laid paper (371 x 501)


Soane Office


fleur-de-lis within crowned cartouche / JW monogram


This colour-coded working drawing shows the structure of the roof timbers which leave room for a lantern or skylight. Fir is used for the beams, which dovetail with oak borders and are tied with iron bars. On the whole the drawing is an interesting example of the roof structure of an irregularly-shaped building. (TD)



Digitisation of the Drawings Collection has been made possible through the generosity of the Leon Levy Foundation

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Sir John Soane's collection includes some 30,000 architectural, design and topographical drawings which is a very important resource for scholars worldwide. His was the first architect’s collection to attempt to preserve the best in design for the architectural profession in the future, and it did so by assembling as exemplars surviving drawings by great Renaissance masters and by the leading architects in Britain in the 17th and 18th centuries and his near contemporaries such as Sir William Chambers, Robert Adam and George Dance the Younger. These drawings sit side by side with 9,000 drawings in Soane’s own hand or those of the pupils in his office, covering his early work as a student, his time in Italy and the drawings produced in the course of his architectural practice from 1780 until the 1830s.

Browse (via the vertical menu to the left) and search results for Drawings include a mixture of Concise catalogue records – drawn from an outline list of the collection – and fuller records where drawings have been catalogued in more detail (an ongoing process).