architects plans of masonry

Architectural Masonry

Natural Sandstone Masonry

Northern Stone Sales (UK) Ltd are suppliers of the finest natural sandstone architectural masonry. We can supply all kinds of bespoke masonry, for building contractors and civil engineers for small and large scale developments.

Dimensioned drawing of a large stone gatepost


Building constructed from natural ashlar masonry

Ashlar masonry is a smooth faced stone masonry walling block. It has the finest finish, being sawn on all six sides, giving a totally flat face. Being sawn on all sides allows ashlar to be laid with extremely fine joints, often 5mm instead of the usual 10mm required for other walling stone. These tight joints give an even finer finish to the wall. Ashlar masonry is of very high quality, used in the construction of traditional buildings. However, ashlar is also used on contemporary buildings as well. Often used on farmhouse, or barn conversions, it is a good way to bridge the difference between old and new buildings. Northern Stone Sales (UK) Ltd are suppliers of natural ashlar masonry stone, produced to your precise dimensions. We can supply to building contractors and civil engineers around the country.

All around the country are buildings that are constructed from ashlar masonry, in colours ranging from white limestone to the deep, luxurious red sandstone, that defines Chester. Ashlar masonry creates tradition, from an entire building clad in the smooth finish of ashlar stone or adding an elegant architectural feature to a building project. Ashlar cladding is the traditional, smooth finished building material, most often seen on large, municipal buildings, like libraries, museums, churches or town halls.

Bed sizes, course heights and block lengths can all be set to your specifications, as well as all other masonry elements. Ashlar masonry differs from regular walling stone in it's course heights. Ashlar course heights are generally 145mm or 220mm as opposed to the standard 140mm or 215mm of pitched or split faced walling. This larger size is to account for the narrower 5mm joints between courses that ashlar is laid with.

When ashlar masonry is used on its natural bed its natural grain remains in the same orientation as when it was formed over millenia of geological action. This method of contruction maximises the compressive strength of the building. If ashlar is laid with a joint, or edge bedding, the stone is likely to crack. If laid in a face bedded plane, the stone is likely to delaminate or erode with the weather and stress created by the compressive loads from the stone above. Our ashlar is always produced in its natural bedding plane.

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(01200) 404909

Window Surrounds

section drawings of large, stone window surrounds

The masonry that surrounds window apertures consist of 3 main components, the heads and cills, and the jambs. Jambs are the main vertical parts of a window surround, sited on the outside of the window structure. A head is a structural horizontal block that spans the gap between the two upright supports of the window aperture. Heads can be decorative and stuctural. The top part of the window. The head, which can also be called a lintel, is a single unit of masonry that supports the building above the window. The cill is the lowest part of a window, the bottom face of the cill rests on the wall below the window, and the window frame sits on top of it. Sloped to drain rainwater.

On larger windows, there are two more components that can be added to the structure, known as mullions and transoms. Transoms are horizontal parts of the window structure. They can separate glass from glass, or glass from another part of the aperture, like a door. A mullion is the vertical part of the inside of the window structure that makes a split between the sections of a window frame. Primarily for supporting the structures above, the mullion also provides structure for the windows themselves.

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(01200) 404909

Label Moulds

Our label moulds are hand carved sections, which form a barrier above a door or window. The label mould stops water from dripping down onto the opening. Label mould masonry adds that finishing touch to door and window surrounds. Our natural stone label moulds are designed with block work coursing in mind. Usually on a 140mm bed size. We can mason internal and external returns.

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(01200) 404909


natural sandstone masonry quoins

Quoins are the large square stones used at the corner of buildings. They add structural strength to building, and are beautiful to look at, and they also speed up the construction process, especially when building in natural stone, or rendered walls. We can supply quoins in a large range of sizes, shapes and finishes, from smooth sawn to L-shaped to pitch faced with drafted corners, or chamfered or beveled edges.

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(01200) 404909

Door Surrounds

Natural stone door surrounds are masonry that enclose a doorway. Two long jambs, or jamb blocks and a central head form the entrance, into which the door casing is built.

The simplest door surrounds are made from square section stone, or they can be made from ornately carved sections, finished with a label mould over the top.

Getting the fine detail right on a carefully designed doorway is a great way to add character and finesse to the front of a building. We supply natural sandstone masonry stone door surrounds to give a unique look to your finished build.

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(01200) 404909


natural sandstone masonry gatepost caps

Copings are the top course of a wall. They span the courses of a wall, to prevent water from getting inside the two skins of a wall. We also supply copings for use around swimming pools, with their characteristic smooth sloping section to drain water back into the pool to prevent slips. York stone has great slip resistance properties, which makes it the ideal stone to produce swimming pool copings from. Our natural stone copings can be supplied with a range finishes and in several colours. Flat, once or twice weathered, or chamfered copings protect the wall, whether it is brick or stone, and give an elegant and beautiful finish, whether traditional or contemporary.

Most copings are supplied plain-ended, but we also provide terminal ends, curved and sloping copings, and return sections, which can all be supplied once or twice throated. All of our copings are made to your exact specifications, so get in touch with our professional team to discuss your requirements today, by email or telephone.

We also supply pier caps and finials to match the copings.

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(01200) 404909