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The Stone & Worktop Glossary


Decisions are more informed with knowledge!

The jargon used in defining stone terms can often become quite convoluted. The purpose of this section is to try to offer a clear explanation, in layman’s English, of the most common definitions relating to stone, worktops as a whole and their fabrication.

If you are looking for an explanation of a term not contained here please feel free to contact us and we will be happy to try to assist you.

Happy reading!


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Stone And Worktop Terms Beginning With The Letter F


Measured stone manufactured and completed for fitting.


The work needed to transform construction stone from quarry blocks to cut or finished stone. This includes principal sawing into slabs. It may also include both hand and mechanical techniques such as sawing, drilling, grinding, honing, polishing, and carving.


A face of a structure, typically the front.


Refers to the uncovered surface of stone on the building. Or, a parallel belt of upright face, often used in combination with mouldings.

Face Shell

The wall of a unfilled stonework unit, on its front and back surface.

Face Shell Bedding

Mortar applied only to the face shells of unfilled stonework units.


Any material making up a part of a wall, used as a finished surface. Also, a wall in which the stone face and the back-up wall are of other materials.

Factor Of Safety

The factor by which the calculated weight or pressure is multiplied to indicate the surplus of strength or resistance provided for safety.

False Joint

A channel routed in a solid piece of stone to replicate a joint.


A straight band of perpendicular face, often used in combinations with mouldings.


A dislocation of stone strata which may interfere with natural below ground drainage, or a break in the layers or bedding plane.

Feather Edge

A sharp arras formed by bevelling or cutting a piece of stone


Any group of crystalline minerals, all silicates of aluminium with either potassium, sodium, calcium, or barium. An vital constituent of nearly all crystalline rocks.


Limestone or quartz-based stone (sandstone) hold a high proportion of iron oxide. 


The expanse of wall between openings, corners, etc…, principally composed of stretchers.

Field Stone

Loose blocks separated from ledges by natural progression and scattered through or upon the ground cover; applied also to similar transported materials, such as glacial boulders and cobblestones.


Fieldstones are weathered stones found on above ground.

Filler Strip

Refers to a resilient material placed in the rear part of a joint to work as a sealant stop.


Rebate, frequently used as a decorative feature with mouldings.


A trade idiom used in the fabrication of marble to specify the filling of natural voids with colour-blended cements, shellac or synthetic resins and alike materials.


The powder, dual, silt-size, and sand-size material resulting from processing (usually crush tog) rock.


Final surface applied to the face of measured stone in fabrication.

Finish Floor

The exposed top part of a flooring making.

Finished Stone

Construction stone with one or more mechanically dressed surface(s). 


Person or company which operates a plant or machinery for the fabrication of domestic and foreign stones for construction and other purposes.

Fire Clay

A clay used for the construction of bricks that is highly resistant to heat without deforming.

Fire Resistantive Material

See non-combustible material.


An aperture on a hearth, served by a chimney flue, where an open fire may be laid.


Relatively fire-resistant.


Any material or combination protecting structural parts and escalating their fire resistance.


A term used to describe the installation of stone work.


Flagstones are fine slabs of stone used for flagging or pavments, driveways, patios, etc…, and is normally a thin-grained sandstone, bluestone, quartzite, or slate, but thin slabs of other stones may be used.

Flare Or Flashed Header

A header of darker colour than the field of the wall.


Industrialized process to produce specific colour tones in clay units by creating a reducing atmosphere in the kiln. Or, a thin impermeable material placed in mortar joints and through air gaps in masonry to prevent water penetration and provide water drainage. Also, metal or other protective material used to cover joints, tops of walls, parapet walls, or angles, as of a roof.


The mottled effect you get when certain marble assortment are sawn parallel to their natural bedding plane.

Fleuri Cut

Exclusive to the marble industry, it is cut parallel to the natural bedding plane.


Dense, fine-grained, naturally occurring form of silica that fractures conchoidally.


A stone mason’s tool, a flat board with handle on one side, used for distribution and smoothing plaster or cement.

Float Coat

The final mortar coat applied with a float over which the neat coat is applied.


The parallel surface of a room or structure upon which one stands or walks. Also, the area between two neighbouring levels of a building.

Floor Plan

The plan, or parallel section, of a structure.


Stone used as an inside pedestrian walking surface.


Descriptive of adjoining surfaces in the same plane.

Flush Joint

A joint where the mortar or sealant is pressed flush with the stone face. 


Stone having a regular series of concave grooves. 

Flying Buttress

A buttress that includes a rampant arch to carry the inner thrust to the pier. 


The covered or banded structure of rock in which the mineral grains became re-aligned at right angles to a directional force that existed during metamorphism. 

Four Corner Finish

Coarse bush-hammered finish with same characteristics as 6-cut, but with markings not more than 7/32″ apart. 

Four Man Boulders

Coarse stones under 750 pounds. 


A subordinate gap between an entrance and the main inside to which it leads. 


A break in rock made by mechanical breakdown. Fractures include faults and joints. 


A stone that may be cut freely in any direction without fracture or splitting. 


Flat part of the entablature occurring above the architrave and below the cornice.

Frith Stool

A seat near the altar of a church. 


A depression in the bed surface of a block, sometimes called a panel.


The more vital face of a structure, or that containing its main entrance. 

Full Mortar Bedding

Mortar applied to the entire depth of a masonry unit.


The method of finishing the inside face of stonework wall to provide space for insulation, to prevent moisture transmittance, or to provide a smooth or plane surface for finishing.


The practice of striking a ‘V’ in a bed of mortar with the end of the trowel.

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