Editing Timber framing (section)

==Types of timber frames==

=== Box frame ===
A simple timber frame made of straight vertical and horizontal pieces with a common rafter roof without [[purlin]]s. The term ''box frame'' is not well defined and has been used for any kind of framing (with the usual exception of [[cruck]] framing). The distinction presented here is that the roof load is carried by the exterior walls. Purlins are also found even in plain timber frames.

=== Cruck ===
[[File:Cruck Building, Weobley, Herefordshire - geograph.org.uk - 12580.jpg|thumb|A "true" or "full" [[cruck]] half-timbered building in [[Weobley]], [[Herefordshire]], England: The cruck blades are the tall, curved timbers which extend from near the ground to the ridge.]]

A [[cruck]] is a pair of crooked or curved timbers<ref>''Oxford English Dictionary''</ref> which form a [[bent (structural)|bent]] (U.S.) or crossframe (UK); the individual timbers are each called a blade. More than 4,000 cruck frame buildings have been recorded in the UK. Several types of cruck frames are used; more information follows in English style below and at the main article [[Cruck]].

* True cruck or full cruck: blades, straight or curved, extend from ground or foundation to the ridge acting as the principal rafters. A full cruck does not need a tie beam.
* Base cruck: tops of the blades are truncated by the first transverse member such as by a tie beam.
* Raised cruck: blades land on masonry wall, and extend to the ridge.
* Middle cruck: blades land on masonry wall, and are truncated by a collar.
* Upper cruck: blades land on a tie beam, similar to [[knee (construction)|knee rafter]]s.
* Jointed cruck: blades are made from pieces joined near [[eaves]] in a number of ways. See also: [[hammerbeam roof]]
* End cruck is not a style, but on the gable end of a building.

<gallery mode="packed">
File:Weihnachtsmarkt Backnang 2010.jpg|Half-timbered houses, [[Backnang]], Germany
File:Viel Fachwerk am historische Marktplatz in Miltenberg.jpg|Half-timbered houses, [[Miltenberg]] im Odenwald, Germany
File:Rural railway station built timber framing style.jpg|Rural old railway station timber framing style in [[Metelen]], German
</gallery>

=== Aisled frames ===
[[File:Interior of Market Hall - geograph.org.uk - 966178.jpg|thumb|Interior of a two-aisled market hall, [[Chipping Campden]], [[Gloucestershire]], England]]
Aisled frames have one or more rows of interior posts. These interior posts typically carry more [[structural load]] than the posts in the exterior walls. This is the same concept of the aisle in church buildings, sometimes called a [[hall church]], where the center aisle is technically called a [[nave]]. However, a nave is often called an aisle, and three-aisled [[barn]]s are common in the U.S., the [[Netherlands]], and Germany. Aisled buildings are wider than the simpler box-framed or cruck-framed buildings, and typically have purlins supporting the rafters. In northern Germany, this construction is known as variations of a'' Ständerhaus''. {{Clear}}