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Glossary

 
 
Blind
Any window covering with movable slats or louvers for modulating light and privacy through the window covering.
Bottom rail
Element of horizontal blind or shade, normally at the bottom, which is moved by the lift cords in order to raise or lower the blind or shade.
Break-Thru™ safety tassel
Hunter Douglas tassel designed to protect children and pets by separating into two halves when something is caught between the cords of a window covering. To reassemble, simply snap the halves together. To reassemble a four-cord tassel place loose cords in slot in top of tassel halves and snap the halves together. [Break-Thru tassel example]
Braided ladder
Element of a horizontal blind which supports slats. Constructed of two parallel cords connected at right angles to each other by short strings called rungs — the slats are supported by the rungs.
Cellular shade
Any shade which, when utilized, creates air spaces in the form of tubes or cells in order to increase thermal efficieny, sound absorption, or opacity.
Clutch-lift
Any specialty window covering which uses a RollEase® (or equivilent) lift system. Brand-specific names of clutch-lifts are: EasyGlide (Hunter Douglas), EasyUp (Bali, Graber, Nanik), and Activator (LouverDrape, Fashion Tech, Verosol)
Cordlock
Mechanism which holds a horizontal blind or shade open by friction on the lift cords.
 
Duette® shade
Registered trademark for honeycomb shade manufactured by Hunter Douglas Window Fashions, Inc.
Head rail
Element of window covering, normally at the top, which is attached to the installation brackets and houses the operational components (i.e. cordlock, carriers, etc.) of the window covering.
Horizontal blind
Any blind with horizontally oriented slats.
Honeycomb shade
Cellular shade
Inside mount
Measurement specification for manufacturing a window covering intended to fit inside a window casing. The manufacturer will take a standard deduction from the specified measurement to allow for proper operation of the window covering within the window casing.
 
Louver
Element of a blind (usually a vertical blind), similar to a slat but may be made of cloth or a rigid material like plastic, aluminum, or wood.
Macro blind
Horizontal blind with 2" slats
Metal head
Venetian blind with metal headrail
Micro blind
Horizontal blind with ½" slats
 
Mini blind
Horizontal blind with 1" slats
Motorized window covering
Any blind or shade operated by an electric motor via a wall-mounted switch or remote control unit.
Mylar shade
Roller shade constructed with transparent Mylar film for fabric. Very effective for minimizing glare, interior heat gain, and ultraviolet radiation damage without obstructing the view through a window. Ineffective for night time privacy.
Outside Mount
Measurement specification for manufacturing window coverings intended to be installed outside the window casing. Manufacturers will normally not make any adjustments to the specified measurements.
Pleated shade
Any shade in which the fabric is folded and creased in an accordian-like manner. Similar to Cellular shade, but lacking air cells.
PowerRise®
Registered trademark for battery-powered, remote-controlled, motorized window coverings manufactured by Hunter Douglas, Inc. Available on Duette® and Silhouette® products.
R-value
Numeric measurement of a material's resistance to thermal transfer. The measurement represents the time it takes for one degree Fahrenheit of heat to transfer through the material. The larger the number the better the insulation provided by the material.
Record
replace lift or draw cord in blind, shade, or traverse rod.
RollEase®
Registered trademark of a clutch-driven shade lifting system manufactured by General Clutch, Inc. It is comprised of a loop (either cord or chain) which operates a clutched roller driver. Pulling the loop one direction will raise the shade, while pulling the loop in the opposite direction will lower the shade.
Roller shade
Any shade in which fabric is wrapped around a roller and is operated by winding and unwinding.
RV & boat
Any specialty shade made specifically for a recreational vehicle or marine vessel.
Shade
Any window covering which, when utilized, lacks a mechanism for modulating light and privacy through the window covering.
Shade roller
Long tube or dowel with a winding mechanism on which shade fabric is wrapped.
 
Skylight shade
Any specialty window covering made to fit a window which is not perpendicular to the floor.
Slat
Element of a horizontal blind, usually made of wood or aluminum, which obstructs light and view through a window and is supported by ladders.
Slat Length
Measurement across the long side of a slat.
Slat Size
Measurement across the short side of a slat.
Tape Ladder
Element of a horizontal blind which supports slats. Constructed of two parallel strips of cloth or plastic approximately 1½" wide connected at right angles to each other with narrower strips of the same material called rungs — the slats are supported by the rungs
Tiltgear
Mechanism by which the slats of a blind are adjusted to modulate the light through the blind.
Top-down/bottom-up
Specialty shade with two sets of lift cords. The first set controls the bottom rail like a standard rectangular shade. The second set controls a middle rail which is attached to the top of the shade fabric. When lowered, this middle rail reveals the window from the head rail to the middle rail.
Traverse rod
Device from which a drapery is hung which has a draw cord to facilitate the opening and closing of the drapery.
Vane
Element of a blind, synonymous with louver.
Venetian blind
Any horizontal blind. Usually in reference to older style blinds.
Vertical blind
Any blind with vertically oriented vanes.
Wood blind
Any blind with wooden slats or vanes.
Wood rail
Venetial blind with wood head and tilt rails. Wood rails may have wood or metal slats.