Free shipping on every ordersee exceptionsNot sure which seal? Try our Seal Finder →Hinge? Hinge Finder →

Shower Door Seals for 1/2" Glass

1/2" (12 mm) glass is used on heavy, high-end frameless doors and panels. It feels noticeably thicker than standard glass and needs heavy-duty hinges.

Every seal below pressure fits onto 1/2" glass.

Other thicknesses: 1/4" · 5/16" · 3/8" · How to measure · Tape-on seals that fit any thickness: bulb & fin seals

Not sure which seal you need?

Use our Seal Finder

Pick your door, point to where it leaks and we'll show only the seals that fit your glass. Takes about 30 seconds.

Start the Seal Finder →

Prefer to read? Which seal do I need? matches the leak to the seal.

Bottom Sweeps & Drip Rails (6)

Straight-Line Seals (180°) (5)

Corner Seals (90° & 135°) (2)

Bulb & Fin Seals (1)

Magnetic Seals (3)

1/2" glass: common questions

How do I know my glass is 1/2"?

Lay a tape measure across a bare edge: 1/2" is eight 1/16" marks (about 12 mm). Six marks is 3/8", the more common size.

What is the most common bottom sweep for 1/2" glass?

The CRL P912WS bottom wipe with drip rail.

Do 1/2" doors use different seals than 3/8" doors?

The seal shapes are the same; only the channel that grips the glass is wider. Always order the version made for 1/2" glass.