Sliding Glass Door Terms: A Complete Glossary for Steel Sliders
A sliding glass door is a glazed door that opens by gliding one or more panels horizontally along a track, rather than swinging on hinges.
The distinction that matters most: lift-and-slide vs standard slider
A lift-and-slide door is a slider whose panel is raised slightly off its sill by a handle turn before it glides, then lowered onto a compression seal when closed.
Turning the handle down engages rollers and lifts the heavy glass panel clear of the threshold, so even a large panel moves with light effort. Turning the handle back up drops the panel onto its seal, closing the opening against air and water. This is why lift-and-slide is the mechanism PINKYS uses for its exterior sliders: it pairs smooth operation of large panels with a weather-tight closed position. See the Air 4 Lift-and-Slide Slider, Air 5 Lift-and-Slide Slider, and Air Lite Lift-and-Slide Slider.
A standard slider, also called a top-track or top-hung slider, is a door whose panel hangs from an overhead track and rolls side to side without lifting.
Because the panel simply glides rather than sealing down onto a sill, a top-track slider is built for interior use: room dividers, closets, offices, and passage openings, rather than as a weather barrier. PINKYS interior sliders use single-pane glass and a slim T-bar profile. See the Air 4 Interior Top Track Slider range.
Lift-and-slide vs standard slider at a glance
| Feature | Lift-and-Slide | Standard Top-Track Slider |
|---|---|---|
| Typical use | Exterior, indoor-outdoor openings | Interior room division |
| How it moves | Handle turn lifts the panel off the sill, then it glides; lowers to seal when closed | Panel hangs from a top track and rolls side to side |
| Weight carried | At the sill on rollers (bottom-rolling) | From an overhead track (top-hung) |
| Glazing | Dual-pane insulated (Low-E), custom options available | Single-pane, custom options available |
| Weather sealing | Compression seal when lowered | Not a weather barrier |
| Panel scale | Large, heavy glass panels | Lighter panels |
| PINKYS line | Air 4, Air 5, Air Lite (exterior) | Air 4 Interior, Air Lite Interior |
Mechanism and operation terms
A slider mechanism that lifts the panel off the sill on a handle turn, then lowers it onto a seal when closed.
The PINKYS exterior Air line (Air 4, Air 5, Air Lite) is built on this mechanism, which is a bottom-rolling design: the lift raises the sash onto rollers at the sill to glide, then lowers it onto the seal to close. The panels are non-structural and do not carry building load. Single-panel weight rating depends on panel size, so contact the PINKYS custom team for the rating on a specific opening.
A slider whose weight hangs from an overhead track, so the panel rolls rather than lifts.
Used across the PINKYS interior slider range. A slim floor guide keeps the panel aligned without carrying its weight.
A slider whose panel weight rides on rollers at the sill rather than hanging from an overhead track.
PINKYS exterior sliders are bottom-rolling. Lift-and-slide is a bottom-rolling design: the lift-and-seal action raises the sash onto its sill rollers to glide and lowers it onto the seal to close. This is the opposite arrangement to the top-hung interior sliders, where the panel hangs from a track above.
A slider with three or more panels that travel along the same opening and gather together to clear a wide span.
Multi-slide describes panel count and stacking, not the mechanism. Built as a lift-and-slide, each panel lifts and seals, which keeps a large multi-panel run moving easily and closing weather-tight. Panels either bypass on parallel tracks or stack at one end; if they retract into the wall instead, it becomes a pocket configuration. PINKYS sets no fixed maximum panel count. Contact custom sales for wide or multi-panel spans.
A slider whose panels retract fully into a cavity inside the adjacent wall, leaving the open doorway completely clear.
Pocket describes where the panels go when open, not how they move. A lift-and-slide pocket door lifts and glides each panel into the wall pocket, then seals when drawn closed. The contrast is a stacking multi-slide, whose open panels stay visible stacked at one end. PINKYS wall pocket sliders are available intermittently depending on stock and are always orderable, with a 14 to 16 week lead time; some custom configurations take longer. Please contact our custom Studio Steel team for information.
A sliding system installed at a building corner, where two runs of panels meet at the corner rather than along one straight wall.
Center corner is a layout, not a mechanism. In a no-post center-meeting corner there is no fixed structural post where the walls meet, so the operable panels meet and interlock at the corner itself, and the corner opens away to leave two glass walls giving onto one unobstructed opening. Built with lift-and-slide hardware, each run lifts, glides, and seals. Center corner is not the same as center-split: center-split (OXXO) is two panels meeting in the middle of one straight run, while center corner is two runs meeting at a building corner.
Configuration and layout terms
A two-panel door with one sliding panel and one fixed panel.
The sliding panel parks over the fixed panel when open. Handing (which side slides) is written as slide left or slide right.
A door with two sliding panels that meet in the middle and part to each side.
This opens the center of a span from both directions. PINKYS offers center-split builds across the Air line, for example the Air 4 Center Split Double Slider and Air 5 Center Split Double Slider.
A glazed panel that does not move and is held permanently in the frame.
Fixed panels extend a glass wall visually while only part of it operates.
The direction the operable panel travels, viewed from a stated side of the door.
PINKYS lists slide left and slide right as selectable options on catalogue sliders, so confirm the viewing side when ordering.
Anatomy and component terms
The framed glass unit that makes up each section of the door, whether sliding or fixed.
The vertical (stile) and horizontal (rail) members of the steel frame that surround each glass panel.
The bottom member of the frame that the door closes against and, on a lift-and-slide, seals onto.
ADA options may be available for commercial doors; contact PINKYS custom Studio Steel sales for the requirements on a specific project.
The channel the panel runs along: overhead on a top-track slider, at the sill on a lift-and-slide.
The profile where two panels overlap when closed, which locks them together and blocks the gap between them.
The vertical side members of the frame that fix the door into the rough opening.
On exterior sliders the jamb sizing changes with the size of the door. PINKYS interior sliders have options for jamb sizing.
A slim bar that crosses the glass to divide it into smaller panes for a classic steel look.
PINKYS interior sliders use a 3/4 inch T-bar. A divided-lite layout is decorative and does not change how the door operates.
The visible width of frame between two panes of glass, or around the glass edge.
Narrower sightlines mean more glass and a more minimal look, a defining feature of steel-framed sliders.
The seals that close gaps around a panel, and the small drainage openings that let trapped water escape the sill.
PINKYS exterior sliders are weep-draining and use V-groove weatherstripping.
Glass and performance terms
Two panes of glass sealed with a spacer and a gap between them, which insulates far better than a single pane.
PINKYS exterior lift-and-slide sliders are glazed with dual-pane insulated glass. Please see our Double-Pane Glass Page for more details.
A single sheet of glass, used where insulation is not required.
PINKYS interior top-track sliders use single-pane glass, since they divide conditioned interior space rather than separating inside from outside. Please see our Single-Pane Glass Page for more details.
Glass with a microscopically thin coating that reflects heat while passing visible light, improving thermal performance.
Low-E is offered on the exterior Air line. The coating and its performance depend on the glass configuration you choose, so confirm the figures per configuration and state them as 'as low as' with a source when published. Please see our Low-E Glass Page for more details.
Textured or frosted glass that admits light while limiting visibility, chosen for privacy or style.
PINKYS offers decorative glass options including Aquatex, Flemish, Rain, Ribbed, Sandblast/Frost, Tea, Water Cube, and Water Ripple. Please see our Glass Styles Page for more details, be advised that not every available option is shown here. Please contact us for more details if needed.
A non-conductive barrier inside a metal frame that slows heat transfer through the frame.
The Air sliders can be thermally broken. Please see our Thermal Break Technology Page for more details.
A measure of how much heat passes through the whole door: lower is better.
Certified U-factor figures for available PINKYS products can be viewed on our NFRC-Certified Page.
Heat-treated glass that is stronger than standard glass and breaks into small blunt pieces, required by code in doors.
Safety glazing is a baseline requirement in glass doors, not an upgrade option. Please view our Tempered Glass Page for more information.
Buying terms: catalogue, configurable, and fully custom
A slider offered in a fixed size and configuration at a listed price, ready to order as shown. Lead time when in stock: 2 weeks.
The majority of our exterior sliders are not kept in stock. Please use the Stock Availability filter in our Interior Top Track Sliders Collection or Interior Pocket Top Track Sliders Collection. These are the products that are in stock most frequently. If you do not see the option for In-Stock under Stock Availability, we do not currently have these in stock and they will have to be made-to-order.
A slider you build to size and specification online, within the size range the PINKYS configurator offers.
Use the online configurator to set size, configuration, glass, and handing within the available range, then order without calling in. On the PINKYS site these appear as the Customize products. Start from the Lift-and-Slide Sliders Collection or the Interior Top Track Sliders collection. Configurable sliders are made to order, with a 14 to 16 week lead time.
A slider built entirely to your requirements, needed whenever the size you require falls outside the range the online configurator supports.
This is the route for openings the configurator cannot size, along with non-standard configurations, glass, or handing beyond the online options. To order, contact a PINKYS custom Studio Steel salesperson via our Custom Studio Steel contact form. A large share of orders for these sliders are fully custom. Lead time is 14 to 16 weeks, and some fully custom builds take longer, so confirm timing for the specific build.
Frequently asked questions
