Stainless Steel Floor Drains · Square
S.S Square Drains: Square Hidden Stainless Steel Floor Drain
The Jawdah Square Hidden Stainless Steel Floor Drain is a concealed square drain in 1 mm stainless sheet, listed in three nominal sizes, 10 × 10, 15 × 15 and 20 × 20, with hole sizes of 1.5”, 3.5” and 4”.
Square drains are the default choice for bathrooms, toilets and compact wet rooms where the floor slopes from all sides to one central outlet. Jawdah's square model uses a hidden design, so the drain reads as part of the floor finish instead of a visible metal grate.
This page covers the three listed square sizes, how to choose between them, and what to check before tiling. The square drain belongs to the Jawdah stainless steel floor drain range, produced from deep drawing stainless steel 304 and warranted against corrosion for 25 years.
- Sizes (nominal)10 × 10, 15 × 15, 20 × 20
- Hole sizes1.5”, 3.5”, 4”
- SS thickness1 mm
Quick answer
Jawdah S.S Square Drains are square hidden stainless steel floor drains in 1 mm sheet. Three nominal sizes are listed: 10 × 10 with a 1.5” hole, 15 × 15 with a 3.5” hole and 20 × 20 with a 4” hole. They belong to Jawdah's range made from deep drawing stainless steel 304, warranted against corrosion for 25 years, and suit bathrooms, toilets and wet rooms that fall to a central point.
What a square hidden floor drain is
A square hidden floor drain is a point drain with a square body and a concealed top, set at the low point of a floor that is graded toward it from all four sides. The word hidden describes the appearance: the cover is designed to sit flush and blend with the floor rather than show a perforated metal grate.
In the trade, many concealed drains use a recessed tray that accepts a piece of the floor tile, leaving only a narrow perimeter slot through which water enters. Jawdah lists its square model with the design Hidden; confirm the exact cover arrangement and slot detail from the Technical Data Sheet before finalising tile set-out.
Jawdah data for the square hidden drain
The figures below come from the Jawdah Square Hidden Stainless Steel Floor Drain table and the stainless range statement.
- Product name in Jawdah data: Square Hidden Stainless Steel Floor Drain.
- Nominal sizes listed: 10X10, 15X15 and 20X20 (no unit printed).
- Hole sizes: 1.5” for 10X10, 3.5” for 15X15, 4” for 20X20.
- SS thickness: 1 mm on all three sizes.
- Available design: Hidden.
- Range material: deep drawing stainless steel 304.
- Range warranty: against corrosion for 25 years.
Square hidden drain size table
The table is reproduced exactly from the Jawdah data. The dimension column is printed without a unit, so it is shown as the nominal size as listed.
| Dimension (nominal, as listed) | Hole size | SS thickness (mm) | Available designs |
|---|---|---|---|
| 10 × 10 | 1.5” | 1 | Hidden |
| 15 × 15 | 3.5” | 1 | Hidden |
| 20 × 20 | 4” | 1 | Hidden |
Confirm actual grate, body and cut-out measurements from the Jawdah TDS before setting out tiles.
How water reaches a concealed square drain
With a concealed top, water does not fall through a visible grate. It runs across the tiles, reaches the joint around the cover and drops through the gap into the body below, then leaves through the outlet hole. Because the inlet is a perimeter gap rather than an open grate, the floor falls must lead water accurately to all four edges of the cover.
The square shape lets the floor be cut on four diagonals, the classic envelope fall used in bathrooms. Each triangular segment slopes toward the drain, which is why square drains suit rooms where the shower, basin and floor-wash water all meet at the centre.
Where square hidden drains work well
Square concealed drains are chosen where appearance matters and the water load is moderate to high but localised.
- Residential bathrooms and en-suite showers.
- Hotel and hospital toilets where a clean floor line is wanted.
- Public toilet blocks and ablution areas.
- Locker rooms and changing areas.
- Utility rooms and small wash areas (larger sizes).
Choosing between the three square sizes
The smallest size, 10 × 10 with a 1.5” hole, is the compact option for a single shower tray area or a private bathroom floor where water arrives in modest amounts. The 15 × 15 size steps up to a 3.5” hole, which empties a floor more quickly and suits shared showers, larger bathrooms and areas that are hosed down.
The 20 × 20 size carries the largest outlet in the square range, a 4” hole, and is the logical choice when a square concealed look is wanted in a heavier-duty room, such as a utility room or a wash area. In every case, the drainage engineer should confirm that the pipe below matches the chosen hole size.
Size also affects the tile layout. Align the drain with the tile grid so cuts are symmetrical, and check that the tile module allows a clean fit around the cover.
Material and sheet thickness
The square drain is part of Jawdah's stainless range, where all material is produced from deep drawing stainless steel 304. All three square sizes use 1 mm stainless sheet, as listed in the table.
For a concealed drain, much of the cover is protected by the tile insert or floor finish, while the body sits in the screed. Grade 304 stainless resists the constant wetting, soap and routine cleaning products found in bathrooms and toilets.
Installing a square hidden drain
Fix the outlet to the pipe and set the body so the top of the cover will finish just below the tile surface. Lock the body in position before the screed is laid, then form the four-way falls and lap the waterproofing membrane into the drain flange.
Tile toward the drain and fit the cover last. If the cover takes a tile insert, cut it from the same tile batch and align its joints with the surrounding floor. Clean any adhesive or grout from the perimeter gap, because a blocked gap is the most common reason a concealed drain floods.
Checks before handover
Run water from each corner of the room and watch that it reaches the drain without ponding. Confirm the cover is level, does not rock, and can be lifted for cleaning. Check the stainless surfaces for scratches or cement residue and clean them with a stainless steel cleaner if needed.
Mistakes to avoid with square hidden drains
These are the errors most often seen with concealed square drains on site.
- Using the 10 × 10 size for a hosed-down room that needs a larger hole.
- Placing a square drain against a wall where the floor falls in one direction only.
- Not deciding tile thickness before ordering a concealed design.
- Grouting the perimeter gap shut during tiling.
- Assuming the nominal size is the cut-out size.
Cleaning a concealed square drain
Lift the cover, remove hair and soap build-up from the body and the underside of the cover, and flush with water. Wipe stainless parts with a mild detergent and dry them.
Check the perimeter gap regularly, as it is narrower than an open grate and collects lint faster. Do not leave strong tile cleaners standing in the drain.
Square hidden drain compared with round and rectangle drains
Compared with Jawdah's Stainless Steel Circle Drains, the square model uses a thinner 1 mm sheet and a concealed design, but it offers a larger 4” hole at its biggest size, against 3.5” for the largest round drain. The round drain's Standard design is simpler to install and suits service spaces.
Compared with the rectangle hidden drain on the Stainless Steel Linear Drains page, the square drain needs falls from all sides, while the rectangle drain suits floors falling in one direction toward a wall or threshold.
Key facts
- The Jawdah Square Hidden Stainless Steel Floor Drain is listed in nominal sizes 10X10, 15X15 and 20X20.
- Jawdah square hidden drains have hole sizes of 1.5”, 3.5” and 4” respectively.
- All Jawdah square hidden drains are listed with 1 mm stainless steel thickness.
- The listed design of the Jawdah square drain is Hidden.
- Jawdah square drains belong to a range made from deep drawing stainless steel 304 and warranted against corrosion for 25 years.
- A square floor drain suits floors that fall from all sides to a central outlet.
RFQ / BOQ checklist
- Product: Square Hidden Stainless Steel Floor Drain.
- Nominal size per location: 10X10, 15X15 or 20X20.
- Hole size confirmation: 1.5”, 3.5” or 4”.
- Tile type, tile thickness and tile module around the drain.
- Cover detail required (tile insert or stainless top) to be confirmed with Jawdah.
- Trap required: yes or no.
- Pipe connection type and diameter from the drainage design.
- Quantity per size, drawings and delivery location.
Closer look
16–18In preparation
Further chapters in preparation
These parts of the product page are being prepared with the Jawdah technical team and will be published once verified.
Technical resources
Technical documentation is being prepared for this product.
Projects using this product
Project references are being prepared.
Compatible systems
System relationships for this product are being prepared.
Our technical team can share the current information on request.
Ask the technical teamFrequently asked questions
What sizes does the Jawdah square hidden drain come in?
Three nominal sizes are listed: 10X10, 15X15 and 20X20. The Jawdah table prints them without a unit, so confirm exact measurements from the TDS.
What hole size does each square drain have?
The 10X10 drain has a 1.5” hole, the 15X15 drain a 3.5” hole and the 20X20 drain a 4” hole.
How thick is the stainless steel on the square drain?
All three square hidden drains are listed with 1 mm stainless steel sheet.
What does hidden mean for this drain?
Hidden is the design listed by Jawdah: the cover is concealed so it blends with the floor instead of showing a visible metal grate. Check the cover detail in the TDS.
Which square size suits a home bathroom?
A private bathroom with a modest water load is usually served by the 10X10 drain with a 1.5” hole. Larger or shared bathrooms often use 15X15. Your drainage engineer should confirm the pipe size.
Is the square drain covered by the corrosion warranty?
The square drain belongs to Jawdah's stainless steel floor drain range, which Jawdah states is warranted against corrosion for 25 years.
Can I use a square drain in a walk-in shower?
Yes, if the floor falls from all sides to the centre. If the shower floor slopes in one direction to a wall, a rectangle hidden drain is usually the better fit.
What material is the square drain made of?
It is part of the Jawdah stainless range, which is produced from deep drawing stainless steel 304.
19Next step
Specify square hidden drains for your project
Tell the Jawdah team the sizes, hole sizes and quantities you need, and request the Technical Data Sheet to confirm the cover detail before tiling.