What is Tolerance, Tread, Tracking?

What is Tolerance, Tread, Tracking?

Find the meanings of Tolerance, Tread and Tracking.

More definitions and photos of Toe In, Toggle Bolt, Tone, Tongue-and-Groove Joint, Top-Hung Window, Tortoise Shelling, Tweed and more.

Toe In (kick, recess): The recess at the base of joinery e.g. benches sideboards that is there to allow the front of the foot to slide into or under when working close to the bench.

toe in


Toe: The lower part of the shutting stile of a door.

Toggle Bolt: A proprietary device, which enables a strong, fixing to be made to thin board such as plasterboard or hardboard.

Toggle Bolt


Tolerance:  The allowable range of dimensions of a part, whether hand or machine-made.

Tone: Color with grey added, these are the range from a pure hue to grey.

Toner: A pure organic dye without extender, usually of strong colour.

Tongue-and-Groove Joint: A joint between the edges of boards to form a smooth wall, floor, or roof surface, which is relatively airtight. The tongue in one board fits the groove of its neighbor.

tongue and groove


Toot: The surface roughness of a paint film, which has coarse or abrasive pigment. Such a surface is very suitable for rubbing and gives good adhesion to paints put on to it, but is not a good topcoat.

Top Beam: A collar tie (beam).

Top Lighting: Lighting from overhead by roof light, borrowed light, or artificial light.

Top-Hung Window: A window hinged at its top edge, opening outwards and held by a casement stay.

Top hung window

Tortoise Shelling: (Faux Finishes) this is the art of imitating tortoiseshell. It is achieved by working with wet varnish and adding the desired colours, these spread and are lightly brushed to create the desired markings. It is used for painting woodwork and occasionally walls.

Tortoise Shelling


Touch Dry: A stage in drying, when very slight pressure with the fingers leaves no mark and does not show stickiness.

Tower Bolt: A large steel barrel bolt.

Town Planning: The co-ordination by town planners, who are usually architects or municipal engineers, of the interests of the town, represented by the views of economists, doctors, sociologists, and so on.

Tracking: (carpet) This is as it sounds, the imprints of your feet left on the carpet. It is more predominant on cut piles than loop piles and is only a temporary problem as it vanishes after vacuuming.

Tracks: (drapery) Tracks are generally fixed to the wall above the window, and the curtains have hooks looped into the header tape, which fit onto clips on the track and allows them to be opened and closed. They can be made of plastic or metal with a powdercoat finish.

Tradesman: craftsman, journeyman, mechanic, artisan A man who has been an apprentice for some years in the building trade and is therefore fully skilled in it. He may be a bricklayer, carpenter, joiner, electrician, floor and wall tiler, glazier, hot-water fitter, house painter, mason, paperhanger, plasterer, plumber, slater-and-tiler, steeplejack, etc.

Trap u, p or s:  shaped bend in pipe so arranged that it always contains sufficient water to seal the air.

Travertine: Calcareous stone, usually light cream in colour, used for floors and work surfaces. Often the holes are filled with a slurry or resin or fibreglass to create a surface that is textured by matt and polished areas.



Tread: Top surface of a step, i.e. the flat portion on which the foot is placed.

stair tread



Triad Color Scheme: 3 colors that are equally spaced from each other i.e. the points of a triangle on a color wheel.



Triglyph: referring to Doric architecture a projecting rectangular tablet with three vertical grooves used on the ornamental friezes.

Trimming: Frame round any opening in floors, roofs, ceilings or walls.

Trims: (drapery) Trims are an easy way to smarten up a simple curtain or drapery. They range from tassels to cords, lace, velvet and ribbons.

Trompe l’oeil (To deceive the eye): (paint effects) This is a form of wall painting that suggests a three dimensional illusion. It is often used to make a room appear to carry on outdoors, i.e. by the painting of a window with a landscape in perspective beyond. It can be used as a theatrical decorative feature or to balance architectural features in a room. It requires a skilled artist to be able to fool the eye by using shadows and highlights and with the combination of clever lighting can be a very successful addition to an interior space.

Truss: Framed structure for supporting a weight, such as a roof.



Tubular Steel: A cylinder shaped piece of steel that is hollow and thin walled in comparison to its overall diameter.

Tufting: In upholstery, this is the form of drawing together of two surfaces at regular points with stitches. Buttons are frequently added as a fining over the formed depressions. (show picture)

Tumbling In: Sloping courses of brickwork or blockwork meeting horizontal courses as at the sloping top of a buttress or as a coping to a gable wall.

Tundish: A saucer shape with a central drain hole. Often used to sit header tanks on in case of overflow.

Tung Oil: China wood. A water-resistant oil from the seeds of tropical trees which grow also in China and Japan. It dries quickly but suffers frosting unless properly heat-treated.

Tungsten Bulb: “Ordinary” light bulb, i.e., not fluorescent.

Turner: A tradesman who works on wood or metal in a lathe. See wood turner.

Turnkey Contract: A package deal.

Turpentine Substitute: White spirit.

Turpentine: spirits of I A valuable solvent obtained by distilling the resin of the pine tree. Resin is leached from the living tree or given off when the wood is heated.

Turret Step: A triangular stone step from which a spiral stair is built up. The central solid newel consists of the rounded end of each other.

Two Dimensionally Molded: This describes the bending of a material or product in either its lengthwise or crosswise direction, but not both. (Aaltos Paimio chair)

Two-Pipe System: Heating circuit with flow and return pipes to each radiator.

Tyrolean: finish outside plaster with a rough textured finish, usually thrown on by a hand-operated machine.

Tube Lining: (drapery) this is creating seams with the curtain and lining fabrics.

Tufted: (carpet) consists of hundreds of needles, which thread the yarn through the backing (jute or polypropylene), which forms loops or tufts to the required length. The backing is then given a layer of adhesive coating to fix the tufts in position; another layer of backing is then fixed for added strength. It is available in broadloom or narrow width.

Tungsten Filament or Incandescent: Originally invented by Edison it is the most common bulb in use today. It consists of a glowing filament inside a glass bulb. 25-300 watts. Clear, pearlised or tinted glass, its close to natural light has a short life span and is not very efficient. It’s a good overall light but not for special lighting effects.

Tungsten Halogen Linear: (lighting) Tungsten filament within a halogen gas. Very white light and a broad beam often used for exterior lighting of a wall or as wall washers internally and up lighters internally.

Tweed: (fabric) Usually a 2-up and 2-down twill in solid color, mixtures, stripes and checks. Much used for suiting.Tweed
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