Shower-door glass is commonly listed in inches or millimetres. Current Efforest product pages pair 1/4 inch with 6 mm, while 5/16 inch is approximately 8 mm and 3/8 inch is approximately 10 mm. Thickness is one model-specific specification—not a stand-alone grade for fit or quality—so compare it together with the finished opening, door operation, frame or support system, hardware, and installation requirements.
Shop the verified in-stock shower and tub door collection
Quick glass-thickness comparison
On a small screen, swipe the table horizontally to compare all columns.
| Listed thickness | Metric reference | Current examples | Check before ordering |
|---|---|---|---|
| 1/4 in | Listed as 6 mm | Sliding, bypass, bi-fold, pivot, and tub-screen models | Exact opening range, height, operation, and selected finish |
| 5/16 in | Approximately 8 mm | Selected sliding and bypass shower-door models | Variant-specific width, hardware, finish, and installation details |
| 3/8 in | Approximately 10 mm | Select wider or fixed-and-sliding configurations | Support system, package details, exact width, and threshold requirements |
Current 1/4-inch (6 mm) options
- 56-60 x 76 in frameless sliding shower door — 1/4-inch clear tempered glass with brushed gold, matte black, or brushed nickel hardware.
- 56-60 x 74 in bypass sliding shower door — 1/4-inch clear tempered glass; matte black or chrome.
- 56-72 x 76 in round-tube single sliding shower door — the 56-60-inch variants list 1/4-inch glass; the 68-72-inch variants list 3/8-inch glass.
- 44-60 x 72 in aluminum-frame double sliding shower door — choose the 44-48-inch or 56-60-inch range; both list 1/4-inch (6 mm) clear tempered glass.
- 32-36 x 72 in matte black bi-fold shower door — 32-inch and 36-inch configurations with 1/4-inch clear tempered glass.
- 24-34 x 72 in circular pivot shower door — 24-inch, 30-inch, and 34-inch configurations with 1/4-inch clear tempered glass.
- 31-32 x 55 in frameless pivot bathtub screen — a reversible 180-degree pivot screen with 1/4-inch tempered glass.
- 56-60 x 60 in semi-frameless sliding tub door — 1/4-inch clear tempered glass; matte black or chrome.
- 31 x 55 in folding bathtub door — brushed nickel hardware with 1/4-inch SGCC tempered glass.
Current 5/16-inch (approximately 8 mm) options
- 44-60 x 76 in frameless sliding shower door — a five-configuration 44-60 x 76-inch frameless sliding family with 1/4- or 5/16-inch clear tempered glass and matte black, brushed nickel, or brushed gold hardware by configuration.
- 56-60 in brushed nickel sliding shower door — 5/16-inch clear tempered glass with brushed nickel hardware and 70-inch or 76-inch height choices.
- 44-60 in frameless single sliding shower door — 44-48 x 76-inch and 56-60 x 72-inch configurations with 5/16-inch clear tempered glass.
- 44-54 x 76 in frameless sliding shower door — 44-48-inch and 50-54-inch opening ranges with 5/16-inch clear tempered glass.
- 48 x 76 in double sliding glass shower door — a fixed 48 x 76-inch configuration listing 8 mm clear tempered glass.
- 55-60 x 76 in reversible bypass shower door — brushed gold, brushed nickel, or matte black options with 5/16-inch clear tempered glass.
Current 3/8-inch (approximately 10 mm) options
- 56-72 x 76 in round-tube single sliding shower door — the 68-72-inch matte black and brushed nickel variants list 3/8-inch clear tempered glass.
- 60 x 66 in fixed-and-sliding square-tube shower door — 3/8-inch SGCC clear tempered glass with four listed finish choices.
How to choose the right configuration
- Measure the finished opening. Take width measurements at the top, middle, and bottom after tile and wall finishes are complete. Also record the available height.
- Match the enclosure type. A tub-height door or screen is different from a full-height shower door, even when the width looks similar.
- Choose the door operation. Compare sliding, bypass, pivot, bi-fold, or fixed-and-sliding access with the clearance and entry pattern in your bathroom.
- Review the selected variant. Glass thickness, width, height, finish, and sometimes the frame style change by configuration.
- Check installation details. Confirm wall plumb, threshold support, package contents, and the product-page instructions before ordering.
For a measurement walkthrough, read How to Measure for a Shower Door or Shower Screen.
Frequently asked questions
Is 1/4-inch shower-door glass the same as 6 mm?
On the current Efforest listings in this guide, 1/4-inch glass is identified as 6 mm. Always use the specification on the exact product and selected variant.
Is 5/16-inch glass the same as 8 mm?
They are close equivalents: 5/16 inch is 7.94 mm. Some current product pages state 5/16 inch, while the 48 x 76-inch double sliding model states 8 mm.
Is 3/8-inch glass automatically the best choice?
No single thickness is automatically the right choice for every opening. Select a complete door system whose listed width, height, operation, support or frame, hardware, and installation requirements match the bathroom.
Can I choose glass thickness separately from the door size?
Only when a product page offers that exact configuration. For example, the round-tube single sliding family lists 1/4-inch glass on its 56-60-inch variants and 3/8-inch glass on its 68-72-inch variants. Confirm the selected option before adding it to the cart.
Related shower-door buying guides
- How to Choose a Sliding Shower Door by Opening Width
- Sliding vs Pivot Shower Doors
- Bathtub Screens vs Tub Doors
Compare all verified in-stock shower and tub doors
Availability and inventory can change. Check the live product page for the current price, selected configuration, and availability.
Share and get 15% off!
Simply share this product on one of the following social networks and you will unlock 15% off!