Trestle (mill)

For other uses, see Trestle (disambiguation).

The trestle of a post mill is the arrangement of the main post, crosstrees and quarterbars that form the substructure of this type of windmill.^[1] It may or may not be surrounded by a roundhouse. Post mills without a roundhouse are known as open trestle post mills.^[2]

A Trestle Mill.

A mill's trestle.

A trestle mill is a variety of smock mill, usually without weatherboards, formerly used for drainage in the Norfolk Broads.^[3] Examples can be found at Horning,^[4] Ludham^[5] and St Olaves.^[6]

A well preserved example of a timber crosstree, from the trestle of a medieval windmill, was excavated by archaeologists at Humberstone, near Leicester, in 2007.^[7]