Random rubble masonry is a construction technique that uses irregularly shaped stones of varying sizes and shapes to build a wall without a specific pattern. It can be done using cement, lime, or mud mortars to bind the stones together. It creates a rustic and natural appearance due to the lack of uniformity in the stones. It is commonly found in historical buildings, retaining walls, and landscaping projects. Cement mortar offers strength and durability, while lime mortar provides flexibility, and mud mortar is a less durable option. This masonry style harmonises structures with their natural surroundings.