How did they build castles without cement?

Dry stone, sometimes called drystack or, in Scotland, drystane, is a building method by which structures are constructed from stones without any mortar to bind them together. A certain amount of binding is obtained through the use of carefully selected interlocking stones.



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Medieval builders used cement mortar to build castles and cathedrals, but they didn't use cement as a main construction material.

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These timber castles were quite cheap and very quick to build. However, the timber castles did have disadvantages. They were very vulnerable to attacks using fire and the wood would eventually start to rot. Due to these disadvantages, King William ordered that castles should be built in stone.

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Initially, castles were built out of wood, but eventually, people made castles from stone because they were stronger and lasted longer. Castles usually consisted of a group of buildings that were surrounded by a huge wall and a moat designed to keep attackers out.

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These temporary structures, known as removable roofs (Abwurfdächer) were supposed to have covered fortifications such as the bergfried as well as residential buildings like the palas and would have been quickly removed in the event of a siege so that catapults could be erected on the fighting terraces in order to ...

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So, while stone, rugs, and pressed dirt were used for flooring in castles, the top pick was hardwood.

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Walls. Walls were generally built of stone within wooden frames designed to hold the stone in place while the mortar dried. For thick walls, the wall was usually constructed with a cavity that was filled with rubble rather than being solid stone.

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Castles weren't always cold and dark places to live. But, in reality, the great hall of castle had a large open hearth to provide heat and light (at least until the late 12th century) and later it had wall fireplace. The hall would also have had tapestries which would have insulated the room against too much cold.

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These upright projections resemble teeth, bared at invaders to prevent their attempted entries and at allies to show the owner's strength.

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Water cisterns to collect rainwater were also built within the castle walls; in the case of Dover Castle, these cisterns were in a building attached to and in front of the keep. Pipes carried rainwater from the roof into the cisterns, and it was also possible to get water from a well by using a bucket on a chain.

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