Measure the tray you have — not the brochure photo — then match an adjustable sliding screen whose published range covers your smallest opening. Australian bathrooms often have out-of-square walls, mixed tray brands, and vanities sitting hard against the shower opening. Sliding doors solve the swing-arc problem; accurate millimetre notes solve the return-and-leak problem.
Browse current sizes in Furniture → Bathroom. For finish pairing after you lock the footprint, also see matte black bathroom and modern chrome bathroom hardware.
Direct answer
- Measure width at bottom, mid and top; keep the smallest figure.
- Measure return / depth for corner trays on both walls.
- Note height to the intended top of glass (watch bulkheads).
- Check the product’s adjustment range (many Darrah Opens adjustable screens list about 100 mm wall adjustment on the listing).
- Choose single vs double sliding, then finish.
This expansion guide focuses on the adjustable channel decision — how ranges map to real Aussie recesses. For the broader recess walkthrough see Sliding Glass Shower Screens: Measuring Recess Widths.
Why “adjustable” matters on Aussie trays
Older brick and plaster bathrooms rarely present a perfect rectangle. An adjustable sliding screen uses wall channels that slide to meet the glass pack within a stated millimetre window. On live Darrah Opens examples:
| Example SKU | Footprint on title | Adjustment note on listing |
|---|---|---|
| 1200 × 1000 mm double sliding — black | 1200 × 1000 mm | Adjustable 1100–1200 mm on one side and 900–1000 mm on the other; 100 mm wall adjustment; height 1950 mm; 6 mm AS/NZS 2208 tempered glass |
| 1200 × 1200 mm double sliding — gold | 1200 × 1200 mm | Adjustable 1100–1200 mm on both sides; 100 mm wall adjustment; height 1950 mm; 6 mm tempered glass |
| 1100 × 1100 mm double sliding — gold | 1100 × 1100 mm | Confirm the live range before order |
| 900 × 900 mm sliding — chrome | 900 × 900 mm | Compact square footprint with stainless handle language on title |
| 1400 × 920 mm corner single sliding — chrome | 1400 × 920 mm | Corner / single-door layout — measure both legs of the L |
Always re-read the SKU you buy: adjustment windows and handle styles differ by style code.
Step-by-step measuring worksheet
1. Clear the measuring line
Remove loose bottles and shower curtains. If an old screen is still fitted, measure from the tray upstand / curb, not from the outer face of old channels (those add thickness you will remove).
2. Width at three heights
Mark bottom (just above the curb), mid-height, and near the intended top rail. Record millimetres. Use the smallest width when checking an adjustable range. A wall that is 1195 mm at the base and 1210 mm at the top still needs a screen that can seal at 1195 mm.
3. Return / depth for corner units
Corner trays need two wall legs. Measure each leg the same three-height way. Match both legs to a corner listing such as the 1400 × 920 mm chrome example above — do not assume a square 1200 × 1200 mm kit will cover a long-and-narrow tray.
4. Height and obstacles
Confirm clear height to bulkheads, sloping ceilings, or window sills. Note mixer position, niches, and heated towel rails that might collide with sliding panels or handles.
5. Outside the shower: swing vs slide
If a hinged door would strike the vanity or toilet, sliding is usually the better door type. Still leave finger clearance for the handle outside the wet zone.
6. Map numbers to the adjustment window
Example: your smallest opening is 1140 mm on a side marketed as 1200 mm. A listing that states 1100–1200 mm adjustment can cover that side; a fixed 1200 mm frame without range cannot. Write the SKU’s range next to your measurement before checkout.
Glass and hardware checks (from live listings)
On the 1200 × 1000 mm black and 1200 × 1200 mm gold examples above, the pages list:
- 6 mm clear tempered glass referencing AS/NZS 2208
- 16-wheel sliding systems and quick-release rollers for cleaning
- Magnetic seals / waterproofing liners on panels
- Reversible left/right install with 100 mm wall adjustment
- Height around 1950 mm
Treat those as per-SKU facts — confirm every line on the product you purchase.
Common AU measuring mistakes
- Ordering the nominal size (e.g. “1200”) when the smallest measured width sits outside the stated adjustable band
- Measuring only one height on out-of-plumb walls
- Ignoring tray lip thickness when comparing to channel drawings
- Forgetting apartment lift length for tall glass packs
- Matching finish last — measure first, then pick chrome / gold / black to suit tapware
After the screen: storage and finishes
Keep towels and toiletries outside splash zones with bathroom cabinets from the same Furniture → Bathroom collection. For chrome vs gold styling, see the companion expansion guide in this batch; spout-level finish context sits in Matte Black vs Chrome Bathroom Spouts.
Buying checklist
- Three-height widths (use minimum) + return depths for corners
- Height clear of bulkheads
- Adjustment range on the SKU covers your minimums
- Single vs double sliding vs corner layout matched to tray
- Glass thickness and handle style confirmed on the page
- Trades booked for waterproofing / silicone where required
Who this measuring guide is for
Australian reno and rental bathrooms where the tray is already in, walls are slightly out of square, and you need an adjustable sliding screen whose published millimetre range covers the smallest opening you measured — not the brochure ideal.
Installer handoff
Photograph your worksheet with width at three heights, return-panel length, and curb/tray edge notes. Give the glazier or bathroom fitter the live product URL so they can confirm 6 mm tempered glass (AS/NZS 2208 notes on many listings), handle finish, and wall-adjustment allowance (often about 100 mm class on double-sliding examples — confirm the SKU).
FAQ
Do all “1200 mm” screens fit a 1200 mm tray?
No. Titles describe a design footprint. You need the adjustment range (for example 1100–1200 mm on a side) to cover your smallest measured opening.
How much out-of-square can adjustable channels fix?
Only what the listing states — commonly about 100 mm wall adjustment on the examples above. Do not assume silicone will hide a larger error.
Alcove or corner — which do I measure first?
Identify the tray type first. Alcove openings are usually one width; corner trays need two legs. Wrong layout choice wastes the careful millimetres.
Is 6 mm glass suitable for residential AU use?
Many residential sliding screens on Darrah Opens list 6 mm AS/NZS 2208 tempered glass on specific SKUs. Confirm the page you buy; heavier glass needs matching hardware.
Should a landlord or tenant measure differently?
Same millimetre method. Renters should confirm landlord approval before drilling tiled walls or changing waterproofing details.
Where do I shop adjustable sliding screens?
Start in Furniture → Bathroom and open size-specific product pages such as the black, gold, chrome and corner examples linked above.
What glass thickness appears on many sliding screens?
Several live adjustable sliding screen listings note 6 mm clear tempered glass with AS/NZS 2208 references — confirm on the SKU you buy.
How much wall adjustment do double-sliding examples allow?
Many publish about 100 mm wall adjustment capability per side or as stated — always match your smallest measured opening to the published range.
Should I measure at one height only?
No — measure width at multiple heights because Aussie walls are often out of square.
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