Flooring terms, defined
Plain definitions of the flooring words that come up on estimates, inspections and supplier calls, written for flooring installers. Each term says where it matters on the job and links the Koira calculator, cost guide or template that goes with it.
C
FlooringCarpet padCarpet pad is the cushion layer under carpet that adds comfort, protects the backing and helps the carpet wear longer.Shared with HandymanConstruction adhesiveConstruction adhesive is a heavy glue in a caulk tube used to bond wood, drywall, subfloors, trim and masonry, usually along with fasteners.
E
FlooringEngineered hardwoodEngineered hardwood is flooring with a real hardwood top layer bonded to a plywood or composite core, so it moves less than solid wood.Shared with RestorationEquilibrium moisture contentEquilibrium moisture content is the moisture level a material settles at in its surroundings.FlooringExpansion gapAn expansion gap is the space left at walls and fixed objects around a wood, laminate or vinyl floor so it can expand without buckling.
F
FlooringFloating floorA floating floor is not nailed or glued to the subfloor.Shared with CarpentryFloor joistFloor joists are the horizontal framing members, set on edge in parallel rows, that hold up a floor.FlooringFlooring underlaymentFlooring underlayment is a thin layer between the subfloor and the finished floor that smooths small flaws, adds cushion or sound control, and sometimes blocks moisture.
S
Shared with ConcreteScreedTo screed is to strike fresh concrete level by dragging a straight board or power screed across the forms.Shared with CarpentryScribingScribing is tracing an irregular surface, like a wavy wall or floor, onto a piece of trim, cabinet or countertop and cutting it to match.FlooringSelf-leveling compoundSelf-leveling compound is a pourable cement based mix that flows out to fill low spots and make a flat floor for tile or flooring.Shared with CarpentryStair nosingThe nosing is the front edge of a stair tread that sticks out past the riser below.FlooringSubfloorThe subfloor is the structural layer of plywood, OSB or boards fastened to the joists, under the finished flooring and any underlayment.
T
FlooringTack stripTack strip is the thin wood strip with angled pins nailed around a room's edge that grips stretched carpet.Shared with CarpentryTongue and grooveTongue and groove boards have a projecting edge on one side and a slot on the other, so boards lock together edge to edge.FlooringTransition stripA transition strip is the trim piece where two floors of different materials or heights meet, such as at a doorway.
More for flooring installers: free flooring tools, templates and guides and how the trade runs on Koira. Or browse the whole glossary.