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.
[2] 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] This article about renewable energy is a stub.