Bypass: a door consisting of two or more panels that run in parallel tracks.

Heavy Glass: glass used in many European-style frameless enclosures. Usually 3/8-inch or 1/2-inch in thickness.

Clear Glass: glass that is transparent.

Low Iron / Starphire Glass: Glass that has less Iron content than Clear Glass making it less tinted.

Etched Glass: glass that has had a pattern cut into its surface, usually by an acid treatment.

Laminated Glass: glass that has been made by uniting layers of glass in order to increase the strength of the glass.

Obscure Glass: glass that lets light through, but is not totally transparent.

Patterned Glass: glass that has a repeating shape embedded in the glass.
Pivot Door: a shower door that rotates on two metal pivots on the top and bottom of the door.

Tempered Glass: glass that has been annealed or strengthened by a process of gradually heating and cooling. Once a piece of glass has been tempered it cannot be cut. If it breaks, it breaks into many small pieces. By code, all glass shower doors and enclosures must use tempered glass.

Textured Glass: glass that has been made with a texture on its surface that creates a translucent effect.
Tile Rise (Buttress): the raised portion of a shower curb that is on more than one level.

Tinted Glass: glass that has a color running through it.

Barrier-Free: in terms of handicap access, this refers to an enclosure system that has minimal or no bottom track and openings that are wheelchair-accessible.

Bi-Fold: a door that folds in the middle, usually having one end in a fixed position while the other runs along a guide track.

Buttress (Tile Rise): the raised portion of a shower curb that is on more than one level.

Continuous Hinge Door: a shower door that has a full-length continuous metal hinge on the side of the door.

Curb: a raised edge or border of a shower, usually made of tile, marble or fiberglass.

Curved Glass: glass that has been specially formed to fit into a circular floor plan.

Custom Enclosure: an enclosure that requires specially cut glass and framework.

Drip Channel (Drip Trough): a metal channel that is designed to prevent water running down the door from dripping onto the floor when the door is opened.

Fixed Panels: the glass or plastic panels of an enclosure that do not move.

Framed: a bath enclosure system that mounts all glass or plastic panels in a metal frame.

Frameless: a bath enclosure system that minimizes the amount of metal used to hold the system panels and door in place.

Hinge Door: a shower door that usually has a jointed metal hinge on the side of the door.

In-Line Panels: fixed panels that are “in a line” with the shower door.

Magnetic Latch: a latch that holds the door shut through the use of magnets.
Neo-Angle: a shower that consists of a center door with a fixed panel at an angle on either side of the door.

Powdercoat: a technique for applying paint to aluminum shower door frames. The aluminum is covered with a powder of dry paint particles and is then baked in an oven. This causes the powder to melt and then harden into a tough, colorful finish.

Reflective Glass: glass that bounces back at least some of the light that strikes it. Return Panels: fixed panels that are set at a 90° angle to the shower door.

Silk-Screened Glass: glass that has graphic images silk-screened on the surface to give the illusion of etched, textured or patterned glass.

Sliding Panels: The moving panels in a bypass door.

Steam Bath: an enclosure that is usually equipped with special plumbing to create steam. The enclosure itself either runs from the floor to the ceiling or has a top (Transom Panel) to contain the steam.

Transom Panel: a panel usually located above the door of an enclosure. Can be used to keep steam inside of a steam-shower unit. Some open to vent steam.