Shower Door Sweep for a 5/8 Inch Gap
Quick answer
A 5/8 inch gap is at the top of what a common 3/4 inch wipe can seal — it works, but with almost no flex margin. A 1 inch "extra tall" wipe is the safer buy, and fewer products offer it, so check the wipe height in the listing, not just the glass size. First rule out door sag: 5/8 inch gaps are frequently 3/8 inch installs that drifted.
5/8″ gap = 5/8″ · 0.625 in · 15.9 mm
Data reviewed:
What to measure before buying
- Glass thickness at the bare edge — pull back a section of the old seal first (1/4″, 5/16″, 3/8″, or 1/2″)
- Bottom gap from glass edge to threshold at the HINGE end, door closed
- Bottom gap at the HANDLE end, door closed — note any difference
- Door width along the bottom edge (for trimming the new seal)
- Where the water actually exits: under the door, off a bottom corner, or down a vertical edge
- Photo of the old seal's cross-section before removing it
- Gap with the door fully closed and latched — open-position readings run large on pivot doors
- Difference between hinge-end and handle-end gaps (over 1/8″ means adjust the hinges first)
Wipe height vs. gap size
| Measured gap | Recommended wipe | Note |
|---|---|---|
| 1/8–3/8″ | 1/2″ wipe | The standard sweep size on frameless doors |
| 3/8–5/8″ | 3/4″ wipe | Pick this when the gap varies end to end |
| 5/8–7/8″ | 1″ wipe | Sold as "extra tall" — check the listing states wipe height |
| 7/8–1 1/8″ | 1 1/4″ wipe | Last resort; fix door height or add a threshold first |
Seal types that close a 5/8″ gap
Sweeps that cover a 5/8″ gap
Shower Splash Guard Corner Fins, 10 in, Pair
- Glass
- —
- Length
- 10″
- Material
- Clear PVC
- Mount
- adhesive
Quarter-round fins that mount at the curb corners to block low-angle spray escaping around the fixed panel or door edge. Sold in pairs with adhesive or silicone.
⚠ Fixes corner splash only — water passing under the door needs a sweep, not a splash guard.
Shower Door Sweep with Drip Rail, 3/8 in Glass, Tall 7/8 in Flex Wipe (1/2–3/4 in Gaps), 36 in
- Glass
- 3/8″
- Gap
- 1/2–3/4″
- Length
- 36″
- Material
- Polycarbonate channel, soft PVC wipe
- Mount
- press-on
- Trim
- Cut to size
Soft tall wipe stays quiet across 1/2–3/4 in gaps, including gaps that vary end to end. Trim from the non-rail end.
Shower Door Sweep with Drip Rail, 1/2 in Glass, Tall 7/8 in Flex Wipe (1/2–3/4 in Gaps), 36 in
- Glass
- 1/2″
- Gap
- 1/2–3/4″
- Length
- 36″
- Material
- Polycarbonate channel, soft PVC wipe
- Mount
- press-on
- Trim
- Cut to size
Soft tall wipe stays quiet across 1/2–3/4 in gaps, including gaps that vary end to end. Trim from the non-rail end.
Adhesive Silicone Bottom Dam Strip for Curbless Showers, 39 in
- Glass
- —
- Gap
- 1/4–3/4″
- Length
- 39″
- Material
- Silicone
- Mount
- adhesive
- Trim
- Cut to size
Flexible stick-down water dam for the door line on low-curb and curbless showers. Pairs with a sweep; it is a threshold, not a glass seal.
⚠ Adhesive strips fail on soap film — degrease the surface first and let the adhesive cure fully.
Collapsible Silicone Shower Threshold for Curbless Entries, 60 in
- Glass
- —
- Gap
- 1/4–3/4″
- Length
- 60″
- Material
- Silicone
- Mount
- adhesive
- Trim
- Cut to size
Soft dam that folds flat under a wheelchair or foot traffic and springs back. The standard pick for curbless, accessibility-first bathrooms.
⚠ Adhesion is everything on wet floors: clean with isopropyl alcohol and let the silicone cure fully, typically 24 hours.
Surface-Mounted Shower Threshold Water Dam, 36 in, Trim to Size
- Glass
- —
- Gap
- 1/2–1 1/4″
- Length
- 36″
- Material
- PVC with foam-seal base
- Mount
- adhesive
- Trim
- Cut to size
Raises the sill under the door so a standard sweep reaches. Bond to a clean, dry curb with the supplied sealant or clear silicone and let it cure before showering.
⚠ Dry-fit with the door closed first: the door must clear the dam through its full swing.
Common buying mistakes
- Trusting a "universal" sweep listing without a stated wipe height — many top out at 3/4″.
- Sealing a sagging door: adjust hinges first, then re-measure; you may be back in 3/8″ territory.
- Stacking two thin sweeps; doubled channels sit crooked and leak between layers.
Frequently asked questions
Will a standard sweep seal a 5/8 inch gap?
A 3/4 inch wipe technically reaches, but with only 1/8 inch of flex it loses contact on uneven thresholds. A 1 inch wipe is the reliable choice at this gap.
Why is my gap 5/8 inch when the door is only a few years old?
Hinge creep. Glass doors sag as pivot screws settle; re-squaring the door usually recovers 1/8–1/4 inch of gap and lets a normal 3/4 inch wipe work.
Are extra-tall wipes noisy or draggy?
A properly sized 1 inch wipe over a 5/8 inch gap flexes about 3/8 inch — noticeable but normal. Drag becomes a problem only when overlap exceeds roughly 1/2 inch.