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physics

Staddle stones

Staddle stones is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Staddle stones rather than just read about it. In short: Staddle stones, steddle stones, or straddle stones were originally used as supporting bases for granaries. The staddle stones lifted the granaries above the ground, thereby protecting the stored grain from vermin and water seepage.

Staddle stones — main illustration
Staddle stones — illustration

Key takeaways

  • Staddle stones belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Staddle stones to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Staddle stones from memory before moving on to harder problems.

Reference excerpt

Staddle stones, steddle stones, or straddle stones were originally used as supporting bases for granaries. The staddle stones lifted the granaries above the ground, thereby protecting the stored grain from vermin and water seepage. They were also used on other food and animal feed stores such as hayricks and game larders. In Middle English staddle, or stadle, is stathel, from Old English stathol, a foundation, support or trunk of a tree. Staddle stones can be mainly found in Great Britain, Norway (stabbur), Galicia and Asturias (Northern Spain), and Ireland (corn stacks).

Origins

The name itself and evidence from surviving vernacular buildings with wooden 'feet' suggest that at first the staddles or supports were made of wood, such as at Peper Harow granary in Surrey. Stone staddles were longer lasting and a more reliable means of supporting structures which were sometimes a considerable weight. The name has become integrated into the landscape with bridges, houses, farms and other structures incorporating the name 'staddle'. In Ireland, these stones were known as corn stacks, stands, or straddles. They were often made from granite, and would set in circles to allow for the construction of a wooden or stone structure on top and thatched with something like oaten straw. Despite the name, they could be used to store barley, wheat, oats or rye. It was understood that corn stacks appeared in Ireland after the introduction of the brown rat, who was more likely to damage stored grain, but some archaeological evidence shows stacks in use in Ireland as early as the bronze age. They were in use in Ireland until the 1960s.

Design

The staddle stones usually had a separate head and base which gave the whole structure a 'mushroom'-like appearance. Different areas in the United Kingdom had different designs. The base varied from cylindrical to tapered rectangular to near triangular. Flat-topped cone-shaped staddle stones are to be found in parts of the Isle of Wight. The tops are flat to support the beams, however some variation exists, such as square tops, fluted designs, slate tops, etc.

A fine example is the English Granary built 1731, supported on staddle stones, which can be seen in the Weald and Downland Open Air Museum in West Sussex. Such structures were common in southern England in the 18th century. At Higher Farm in Heathfield, Tavistock, staddle stones are part of the substantial barns built by the Duke of Bedford in the 19th century. The dressed granite stone bases have specially hewn slate tops. The materials used depended on the stone available, giving rise to sandstone, red sandstone, granite examples, etc. The tower mill at Reigate on the Wray Common ceased to work in 1895. The mill had a granary standing next to it, supported by a large number of staddle stones. The Museum of Scottish Country Life at Wester Kittochside near East Kilbride has two 'Stathels', made in Edinburgh of cast iron. The structure is basically a cast iron version of a set of staddle stones with its wooden framework. These rare survivals are still in use.

Function The base stones taper towards the top with an overlapping cap stone placed above, making it almost impossible for a rodent to climb up and into the hay or grain stored above. The air could freely circulate beneath the stored crops and this helped to keep it dry. A wood framework was placed onto the tops of the stones, the staddles being arranged in two or three rows, giving sixteen or more stones. The hayricks, Tithe barns, granaries, etc. were built on top of this frame.

Granaries and beehives

These were often constructed with wooden weather-boards such as at Blaxland Farm in Sturry, Kent, which has nine staddles. However, if the grain was stored loose then the sides were filled in with brick nogging and light lath-and-plaster at the wall tops. Wooden steps up to the buildings were detachable and stored by hanging them up on the side of the structure. If stone or brick steps were built then the top step was not built, thus denying access to rats and other vermin. Some of these granaries had a 'cat flap' and others had a recess inside the steps which served as a dog kennel. Most granaries were used for the storage of two or three separate crops, having a capacity of 500 to 2500 bushels. The arrangement of the stones to support the structure and its weight when in use, required nine, twelve or sixteen staddles. The production of staddles was therefore a fairly significant local industry. Small granaries could make do with five, one being in the middle. The Upper Hexford granary in Oxfordshire uses thirty-six staddles. Beehives were often set on top of staddle stones to keep out predators and provide dry and airy conditions.

Game larders

Small staddle stones were used to support small roofed box-shaped game larders which were used on the larger estates for storage of game, such as pheasant, brought back by shooting parties, etc.

Barns Timber-framed barns raised onto staddle stones were sometimes found in the south of England. Apart from the usual benefits it seems that some correlation between this barn type and the builder being a tenant exists. Being on staddles such barns remained the property of the tenant. In Galicia and Asturias (NW Spain), these barns are called hórreos.

Landscape gardening

Staddles are often found in architectural salvage yards as they may be seen as attractive structures. They are also sold new, being made from moulded concrete. Chainsaws are used to produce wooden 'staddle stones' for use as garden seats or ornaments. In this context the staddle stones are often called mushroom stones.

Conservation Staddle stones are often well over a century old and have developed a good lichen 'patina' with slow and fast growing species adhering to the surfaces. They are better not cleaned as the lichen flora is well worth preserving to add to the biodiversity of a garden scene.

Surveyors marks Old land deeds in northeastern United States often refer to Oak Staddle or Walnut Staddle. These deeds are from the late 18th century to the middle 19th century. Either the owners would cut a tree leaving the stump and request that the surveyors measure to it, or the surveyor would measure out to the location of a new lot corner and a staddle would be inserted into the ground like a boundary stone.

… excerpt ends here. Continue reading the full article.

Illustrations

Staddle stones: A granary sitting on staddle stones at the Somerset Rural Life Museum
A granary sitting on staddle stones at the Somerset Rural Life Museum
Staddle stones: Staddle stone minus its top at The Coach House, Cunninghamhead, in North Ayrshire, Scotland
Staddle stone minus its top at The Coach House, Cunninghamhead, in North Ayrshire, Scotland
Staddle stones: A cast iron stathel at Wester Kittochside, near East Kilbride
A cast iron stathel at Wester Kittochside, near East Kilbride
Staddle stones: Granary sitting on staddle stones at the Weald and Downland Open Air Museum
Granary sitting on staddle stones at the Weald and Downland Open Air Museum
Staddle stones: Staddle stones supporting beehives, circa 1880
Staddle stones supporting beehives, circa 1880

Worked examples

Example 1 — a first encounter with Staddle stones

Start with the simplest possible case. Write down what Staddle stones claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Staddle stones before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Staddle stones ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Staddle stones

In research
Staddle stones appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Staddle stones in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Staddle stones is common in secondary-school and first-year university syllabi. It links to neighbouring topics Agricultural buildings, Architectural elements, Building stone, so understanding it makes those chapters shorter.
In everyday life
Look for Staddle stones outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Staddle stones in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Staddle stones means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Staddle stones out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Staddle stones in simple terms?

Staddle stones, steddle stones, or straddle stones were originally used as supporting bases for granaries. The staddle stones lifted the granaries above the ground, thereby protecting the stored grain from vermin and water seepage.

Why does Staddle stones matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Staddle stones?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Staddle stones.

Tags

  • Agricultural buildings
  • Architectural elements
  • Building stone
  • Mechanical pest control
  • Shallow foundations

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