InstaBidsTypes of shower door?
Shower door types should match the opening and access needs: NGA’s guide covers heavy frameless glass from 3/8 inch, while Kohler’s historical catalog shows ¼-inch pivot glass. For easier access, the Access Board’s alternate roll-in guidance uses a 36-inch clear entry; choose movement, support and containment together.
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Shower-door movement: what opens and what stays put
| Options | How it moves | What to resolve in the layout |
|---|---|---|
| Wall-hinged | Swings from hinges attached at the tiled wall. | Ask the installer to draw the swing and identify the supporting wall. |
| Pivot | Uses pivot hardware at the top and bottom of the panel. | Confirm the selected model’s swing and mounting details. |
| Bi-fold | A door panel folds into a hinge panel. | Compare the folded position with the usable entry, not just the opening before installation. |
| Single sliding panel | Pairs a sliding panel with a fixed panel. | Mark the entry side on the layout before ordering. |
| Bypass sliding | Both panels move past each other. | Ask for the clear entry with the panels in their intended position. |
| Fixed shower screen | A fixed panel leaves an open entry. | Ask how the panel’s support and the opening work together. |
Frame labels and glass thickness are different specifications
| Options | Source example | Bid comparison point |
|---|---|---|
| Frameless heavy-glass design | NGA’s 2021 guide covers tempered glass at least 3/8 inch thick; it excludes thinner systems from its scope. | Operating-door size limits come from the selected hardware supplier. |
| Semi-frameless steam door | Kohler’s historical catalog names semi-frameless steam doors designed to hold in steam. | Specify steam use explicitly rather than treating every shower enclosure as a steam enclosure. |
| Thinner glass labelled frameless | Kohler’s historical catalog also shows a frameless pivot door with 1/4-inch glass. | The frameless label alone does not identify glass thickness or structural design. |
Choose for the bathroom layout
Fixed-panel support
NGA distinguishes fixed-panel size limits from operating-door hardware limits. Ask for both in the proposed design.
Safety-glass specification
The NGA 2021 design guide names Cat II of CPSC 16 CFR 1201 for safety glazing. Ask the supplier to identify the supplied glazing specification.
Service-life context
InterNACHI’s undated planning chart lists shower doors at 20 years. That is a general category estimate, not comparative life evidence for hinged, pivot or sliding designs.
What are frameless shower doors?
Frameless shower doors describe frame construction, while hinged or sliding describes movement. NGA’s 2021 guide covers glass at least 3/8 inch thick; Kohler’s historical catalog also names a 1/4-inch frameless pivot model. Ask for the glass and hardware specification together.
For a fixed panel, NGA gives 84 inches for 3/8-inch glass and 120 inches for 1/2-inch glass only with the stated edge support. Those fixed-panel limits are not operating-door sizes.
Source: Frameless Shower Enclosures Design Guide DG02-21, read 2026-11-09
Source: Showering Line Book, shower doors pages 122–127, read 2026-11-09
What are bypass shower doors?
Bypass shower doors have panels that pass each other: DreamLine says “both panels slide and can bypass each other.” A single-slider arrangement instead pairs a moving panel with a fixed panel. Mark which entry you want available and ask for its clear width.
Source: Different Types of Shower Doors, read 2026-11-09
What are pivot shower doors?
Pivot shower doors use hardware at the panel’s top and bottom, according to DreamLine. Kohler’s historical catalog includes a 1/4-inch frameless pivot example and semi-frameless steam doors. Confirm the actual mounting, swing direction and intended steam use for the proposed model.
Source: Different Types of Shower Doors, read 2026-11-09
Source: Showering Line Book, shower doors pages 122–127, read 2026-11-09
How thick should shower door glass be?
Shower door glass thickness depends on the complete system. NGA’s heavy-glass guide starts at 3/8 inch; Kohler’s historical catalog illustrates 1/4-inch frameless pivot glass. Ask the supplier to specify glass thickness, panel size, edge support and compatible hardware in the same bid.
For fixed panels, the guide’s 84-inch and 120-inch height limits use particular support configurations. Do not transfer those dimensions to a hanging or swinging door.
Source: Frameless Shower Enclosures Design Guide DG02-21, read 2026-11-09
Source: Showering Line Book, shower doors pages 122–127, read 2026-11-09
Are frameless shower doors watertight?
Frameless shower doors can allow water escape. NGA says plastic seals help, but “they do not ensure a leak-proof shower.” Ask the installer to explain the proposed spray direction, panel gaps and seal locations, then describe the expected water containment in writing.
For upkeep, NGA suggests weekly hardware cleaning when drying after every use is impractical. Ask for coating-specific care instructions with the completed enclosure.
Source: Frameless Shower Enclosures Design Guide DG02-21, read 2026-11-09
How wide shower door for wheelchair?
Shower entry width needs a layout-specific answer. The U.S. Access Board’s ABA guide discusses an alternate roll-in shower door with at least 36 inches clear when open 90 degrees. That guidance concerns covered accessible facilities; it is not a blanket rule for every private-home shower.
The same guide describes an alternate roll-in entry of at least 36 inches and a properly beveled roll-in threshold up to 1/2 inch. If access is your goal, have the designer compare the entire route and entry, not just the door’s nominal width.
Source: ABA guide: Bathing Rooms, read 2026-11-09
Put the shower-door layout in your written scope
- Record the finished tiled opening before ordering the enclosure.
- Name the operating style and identify every moving and fixed panel.
- List glass thickness and the selected hardware’s width and weight limits.
- Show fixed-panel edge support and its relationship to panel height.
- Draw the open door and the measured clear entry; use the accessible-layout guidance only in its stated scope.
- Identify steam use explicitly and name the enclosure intended for it.
- Describe seal locations and expectations for water escape.
- Include hardware cleaning and coating-care instructions in the handover.
- Ask how hinge pivot alignment will be maintained; NGA warns that misalignment can let a door slip.
Sources
- Frameless Shower Enclosures Design Guide DG02-21 — National Glass Association; 2021; read 2026-11-09.
- Different Types of Shower Doors — DreamLine; 2022-01-21; read 2026-11-09.
- Showering Line Book, shower doors pages 122–127 — Kohler; undated; historical product examples; read 2026-11-09.
- ABA guide: Bathing Rooms — U.S. Access Board; undated; guidance for covered facilities; read 2026-11-09.
- Standard Estimated Life Expectancy Chart — InterNACHI; undated; general planning estimate; read 2026-11-09.