Interior Design Exam 3
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57 Terms
What is the standard thickness of an interior wall when designing?
About 4 inches.
What is the standard thickness of an exterior wall when designing?
About 6 inches.
What is a common scale for residential floor plans?
1/4 inch equals 1 foot.
What is a common scale for commercial floor plans?
1/8 inch equals 1 foot.
What do dashed lines on a furniture or floor plan usually represent?
Items above the cut plane
What is the maximum typical stair riser height allowed by code?
About 7 3/4 inches.
What is the maximum allowed variation between stair riser heights?
About 3/8 inch difference.
What is the minimum tread depth for a stair?
About 10 inches.
What is the typical minimum width required for a hallway or stairway?
36 inches.
What is the minimum clear width required for at least one exterior door?
32 inches.
What is the maximum size opening allowed in a stair guard or railing?
An opening that does not allow a 4‑inch sphere to pass through.
What is the minimum size required for at least one room in a residence?
At least one room must be 7 feet on one side and 120 square feet in area.
What is the minimum ceiling height required by code?
7 feet.
What is the minimum openable area required for an egress (exit) window?
About 9 square feet.
Where are smoke detectors required in a residence?
In each sleeping room
How should required smoke detectors be connected?
They should be interconnected so that if one goes off
Where are carbon monoxide detectors typically required?
Outside each sleeping area.
How much clear space is required in front of a toilet?
At least about 21 inches of clearance.
What is the minimum interior size required for a shower enclosure?
At least about 30 inches by 30 inches.
When does a model building code become law in a city or town?
When the local jurisdiction officially adopts it.
How can you visually recognize granite?
It often has a speckled
How can you visually recognize marble?
It is usually light colored with noticeable veining.
How can you visually recognize limestone?
It tends to be rougher in texture and is often light in color.
How can you visually recognize travertine?
It looks like limestone with visible pits or “bubbles.”
How can you visually recognize flagstone?
It appears as thin
Which brick bonds are generally considered strongest and why?
Bonds with more header bricks
How is glass typically strengthened for safety uses?
By tempering or laminating it.
What is tempered glass?
Glass that has been rapidly cooled so the outer surfaces are in compression
What is laminated glass?
Glass made of two or more layers bonded with a plastic interlayer so it stays together when cracked.
Where is gloss paint most appropriately used in a home interior?
In high‑mess areas such as kitchens or children’s rooms because it is durable and easy to clean.
What is a key advantage of flat paint on walls?
It hides surface imperfections better but is less washable.
What is satin paint and when is it used?
A mid‑sheen finish between flat and gloss
What is the role of the solvent in paint?
It helps spread the paint over the surface and then evaporates.
How does light affect how a color looks on floors versus walls?
The same color often appears lighter on horizontal surfaces like floors than on walls.
Which carpet fiber is most environmentally friendly and why?
Wool
Which carpet fiber is very durable but less environmentally friendly?
Nylon.
Which carpet fiber is soft and easily recycled?
Polyester.
Which carpet fiber is derived partly from plant sources such as cornstarch?
Sorona or Triexta.
What are two key characteristics of olefin fiber?
It has a low melting point and takes dye well.
What is the usual standard width of carpet rolls in the U.S.?
About 12 feet wide.
How would you describe loop carpet construction?
It has uncut loops of yarn
How would you describe frieze carpet?
It uses highly twisted yarns that fall over to create a nubby texture.
How would you describe random tip shear carpet?
It has a mix of cut and uncut loops that gives a varied
How would you describe cut pile carpet?
It is made of loops that have been cut to create an upright
What are man‑made fibers and give examples.
They are synthetic fibers created from chemicals
What are cellulosic fibers and give examples.
They are fibers derived from plants
What are protein fibers and give examples.
They are animal‑based fibers
What is meant by C.O.M. (customer’s own material)?
A situation where a client supplies their own upholstery fabric to be used on a piece.
What is ergonomics in furniture and interior design?
The study and design of furniture and spaces to support human comfort
What is active ergonomics in a chair?
Ergonomics that rely on user‑adjustable features like levers and knobs to fine‑tune the fit.
What is passive ergonomics in a chair?
Ergonomics where the chair is shaped to fit many users with little or no adjustment.
In what situation is active ergonomics especially appropriate?
When a chair is intended for one primary user who can adjust it to fit their body.
In what situation is passive ergonomics especially appropriate?
When a chair is used by many people
What is a furniture reproduction?
A piece closely modeled after a classic design but not produced or licensed by the original maker.
What construction features indicate a high‑quality sofa?
A frame of hardwood or good plywood
What construction features indicate a low‑quality sofa?
A frame of particleboard with weak webbing and cushions that feel too soft and unsupportive.
What are case goods in furniture?
Furniture pieces with built‑in storage such as dressers
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