Term Definition
PC1 like
Portland cement
Pull chain
Prime coat
PCA 0 likes
Portland Cement Association
PCB 1 like
Polychlorinated Biphenyl
PCC 0 likes
Portland Cement Concrete
PCF 1 like
Pounds per Cubic Foot
PCI 1 like
Pounds per Cubic Inch
Prestressed Concrete Institute
PDI 0 likes
Plumbing and Drainage Institute
PE 0 likes
Professional Engineer
Pea Gravel 0 likes
The part of concrete aggregate that gets through the 3/8 sieve but cannot pass through a size 4 sieve
Peak 1 like
The highest point or apex of a spire, roof, truss, or similar structure
Pearl Lacquer 0 likes
Lacquer in which multi-faceted guanine crystals have been suspended
Peat 0 likes
See Humus
Peat Moss1 like
peat moss
Peavey 1 like
A tool used by lumber workers for handling logs; a wood handle with a pointed lever and a hinged hook
Pecan Veneer 0 likes
A thin cover of hardwood glued onto stronger, inexpensive solid wood, or plywood; employed in furniture and floors
Peck 0 likes
Patches of decomposed wood that result from advanced rotting in a living tree; typically found in cypress and incense-ceda
Peculiar Risk Doctrine 0 likes
An owner is liable to contractors who injure themselves during construction activities on the owner’s property or, because the construction process involves a particular risk of injury
Pecuniary 0 likes
Relating to or calculated with money
Pedestal1 like
A base or foundation for a statue or column
An upright compression element with a height that is not more than three times its average shortest lateral measurement
A short compression component made of reinforced concrete; positioned between a column and its footing so that the load is passed to the footing
Pedestal Floor 0 likes
A system of flooring; short piers or legs are employed as the base over which flooring is laid; particular flooring that is created to avoid sparking and electrostatic build up in a computer room; typically raised over the current floor so that wires between the outlets in the room may be easily installed
Pedestrian 0 likes
A person walking in a public space or road
Pedestrian Barricade2 likes
pedestrian barricade
Some kind of barrier or obstruction that is positioned to direct large groups of people or other people on foot
Pedestrian Grade Separation 0 likes
A structure used mainly by pedestrians, either above or beneath some obstacle such as a street, highway, or railroad
Pedestrian Ramp2 likes
pedestrian ramp
A path built on an incline, intended for pedestrian traffic; different from a curb ramp
Pedestrian Spatial Requirements 0 likes
For comfortable movement during walking, a person generally needs 13 square feet of space
Pedestrian Way 0 likes
A path on which a pedestrian may walk
Pediment 0 likes
A classical Greek style; the triangular front section of a building that transcends the columns
Peel 0 likes
The process of transforming a wood log into veneer by means of rotary cutting
Peeler 0 likes
The neat separation of surface layers from the core in gypsumboard; usually as a result of the surface calcination that occurs while drying or because of an inadequate binder
Peeling 0 likes
A paint film breaks off in substantial pieces when its surface is greasy or moist
When flakes of matrix or mortar detach from a concrete surface
Peen1 like
The end of a hammer opposite the face; its shape allows it to be used for shaping, bending, or cutting the material that is impacted by the peen; See Cross Peen, Ball Peen, or Straight Peen Hammers
Peer Review 1 like
When an architect‘ or engineers’ professional services and office practices are examined by a committee of peers
Pegboard1 like
A board consisting of many holes with pegs in them; tools or other objects are hung on the pegs
Pegged Flooring 0 likes
Hardwood flooring that has hardwood plugs which imitate screw covers or hide recessed screws
PEI 1 like
Porcelain Enamel Institute
Pein 0 likes
A peen variation
PEL 0 likes
Permissible Exposure Limits; standards established by OSHA
Peltier Effect 1 like
When a direct current moves through two adjoining metals, one junction cools while the other warms; the foundation of thermoelectric refrigeration
Penal Sum 0 likes
A surety bond’s face value; the maximum sum of liability of the surety
Penalty 0 likes
If an agreement is unmet, the person or entity responsible must pay this sum of money
Penalty and Bonus Clause 0 likes
A provision in a contract that allows a bonus for timely or early completion or a penalty for late completion
Penalty Clause 0 likes
A provision in a construction contract that stipulates that, if there is any delay in the completion of the project, the contractor will pay some amount of money, typically compounded daily
Pencil Rods 1 like
Smoot steel rods used for reinforcement that have a diameter of 3/16 inch, ¼ inch, or 3/8 inch
Pendentive 0 likes
A concave triangular segment that lie between a dome and its supporting columns
Penetrating Stain 1 like
Stain that is created by dissolving oil-soluble dyes in alcohol or oil
Penetrating Stain Wax 0 likes
Wood finish which yields the color of a deep stain with a wax luster
Penetration 1 like
The density of bituminous material; the distance that a standard needle can vertically penetrate a sample under specified conditions of temperature, time and loading
Penetration Grading 0 likes
A classification system of asphalt cements that is based on penetration in 0.1 millimeters at a temperature of 25° C (77° F); this system has five standard paving grades
Penny 1 like
Originally the price per hundred nails; now refers to a measure of nail length; the abbreviation is the letter d; typically, 16 penny nails are employed in framing
Pentaerythritol Resins 1 like
Resin that is made when pentaerythritol, a high alcohol, reacts with rosin
Pentagon 0 likes
A five-sided plane shape
Penthouse 0 likes
The top floor of a building
Penthouse Louver 0 likes
A louvered wall that runs around the mechanical penthouse area, has fixed or flexible flaps; the wall protects equipment from the weather and serves as a screen around machinery
People Competence 0 likes
The capability of workers to finish projects professionally and on time
Per Diem 0 likes
A payment or allowance given for each day
Percentage 0 likes
A proportion expressed in terms of one hundredths; calculated by multiplying a fraction by 100
Percentage Humidity 0 likes
The degree to which air is saturated with water vapor, multiplied by 100
Perched Water Table 0 likes
Underground water which sits on dry soil and is sealed by an impermeable layer
Percipient Witness 0 likes
A person who is asked to testify because of personal involvement in an event or having observed the event
Percolate 2 likes
Permeate, drip, or cause a liquid to move through an absorbent substance
Percolation Test 1 like
A soil engineer performs such tests on samples of earth to ascertain whether a leech field type sewer system should be installed on a building lot; the test calculates whether the soil on a lot can absorb a septic system‘s liquid affluent
Perforated PVC Pipe1 like
perforated PVC pipe
Plastic pipe that is four inches in diameter; it has one or more rows of holes along its length and is buried in the ground beside building foundations or structures so that groundwater and moisture can drain more easily
Perforated Strap1 like
perforated strap
Thin metal strips with pierced holes in rolls; employed to hang plumbing pipes and store them in place
Perforated Wall 0 likes
Wall that has small openings used for decoration
Performance Bond 0 likes
A written form of security to the owner from a surety company, on behalf of a reasonable prime or main contractor or subcontractor that guarantees the owner payment if the contractor cannot deliver all aspects of the contract; surety companies typically reserve the right to have the first main contractor or subcontractor fix any claims before they pay on the bond or hire other contractors; See Labor and Material Payment Bond and Surety Bond
Performance Code 0 likes
A building code that specifies the goals of the project rather than materials and methods that ought to be employed; compare with Specification Code
Performance Indicator 0 likes
On an income and expense statement, the bottom line specifies a profit or loss and signals how well a business is performing
Performance Specifications 0 likes
The minimum satisfactory standards and actions necessary to finish a project, including minimum standards of quality and aesthetics
Pergola1 like
Growing plants directed over trellis work form an arbor or covered walk
Perilla Oil 0 likes
A type of drying oil that comes from seeds of a brush known as Perilla Ocymoide
Perimeter 0 likes
The total length of the circumference of an area
Perimeter Drain1 like
perimeter drain
Perforated plastic pipe (three or four inches) that runs inside or outside the perimeter of a foundation wall before backfill collecting and redirecting ground water from the foundation
Perimeter Heating 0 likes
A way to install central heating systems to ensure that the registers are positioned under windows on the exterior walls
Perimeter Overflow System 0 likes
A channel built into the sidewall around the perimeter of a pool into which surface pool water is drawn continuously as a skimming action
Perimeter Relief 1 like
Detail of construction which permits the building to move
Gasketing materials which alleviate stress at the places where ceilings and walls meet
Perineal Bath 0 likes
A shallow tub where one sits to bathe; a Sitz bath
Period 0 likes
The time it takes the crest of a wave to travel a distance of one wavelength, or the time it takes two consecutive wave crests to pass a given point
Periodic 0 likes
Reappearing or recurring from time to time
Perjury 0 likes
Knowingly lying while under oath
Perlite 0 likes
Siliceous volcanic rock that enlarges with heat; employed as an insulating fill and as a lightweight aggregate for concrete and plaster
Perlite Institute (PI) 0 likes
4305 North Sixth Street, Suite A, Harrisburg, PA 17110, Tel: (717) 238-9723, URL: www.perlite.org/
Perlite Insulation 0 likes
An insulation that is produced from volcanic glass, which is enlarged when heat is applied
Perlite Roof Insulation 0 likes
Roof system insulation made from volcanic glass that is enlarged by application of heat
Perm 0 likes
The measure of the movement of water vapor through a material
Permafrost 0 likes
Occurring in polar areas, the subsoil is frozen all year
Permanence 0 likes
A characteristics of a plastic; refers to its resistance to significant changes due to time and the environment
Permanent Loan 0 likes
After construction is completed, this long-term loan for real estate that takes the place of the construction loan; also called Takeout Loan
Permanent Magnet 0 likes
Material with aligned molecules that creates a magnetic field
A permanently magnetized metal bar
Permeability 0 likes
A measure of the ability of water to penetrate a given material
Permeable 0 likes
Able to be penetrated; having openings or pores that allow gases or liquids to pass
Permeance 0 likes
The resistance of a given material to the transfer of water vapor; the ratio of the rate of water vapor transfer through a substance or construction between the surfaces to the vapor pressure differential between the two parallel surfaces; See Water Vapor Transmission (WVT)
Permit 0 likes
Authorization from a governmental municipal to perform a given building process; permits for zoning, demolition, grading, electrical, plumbing, septic and other building processes may be obtained
Permutation 0 likes
A grouping or ordered arrangement of elements from a set
Perpend Bond 0 likes
A header brick or large stone that passes through a wall so that one end is on either side of the wall; it functions as a binder
Perpendicular 0 likes
At right angles to a given plane or horizontal line
Perpetual 0 likes
Never ending
Personal Air Samples 1 like
An air sample that a worker takes with a sampling pump; OSHA asbestos guidelines and the EPA Worker Protection Rule insist on such samples
Personal Ownership 1 like
When only one person owns a business; also called Sole ownership or Sole proprietor
Personal Property 0 likes
Any piece of property not considered real property; also called Chattel
Personnel 1 like
People that are employed by a business or for a project
Personnel Lift 0 likes
An elevator used by workers at a job site, or in a building
Perspective 0 likes
A representation of an object as it appears to the eye drawn on a plane surface; it is not scaled because the lines are made to appear shorter than they actually are
PERT 0 likes
Program Evaluating and Review Technique; See Activity; Critical Path Method
PERT Schedule 1 like
A timetable detailing a work in progress and the dates estimated for the start and end of the project
Pest Control 0 likes
The process of controlling the proliferation of insects and pests by placing traps or spraying chemicals or powders
Petcock1 like
A small valve that drains air and permits it to exit an area
Petty Cash Fund 0 likes
A cash fund that is employed to make small payments for a project
Pew1 like
A wooden bench in a church
Product of the day

Garnet Paper

Abrasive, reddish, tough, sharp paper; derived from the semi-precious garnet jewel; more durable than flint paper

garnet paper


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