Custom Sintered Stone Shower Trays: Sizes, Slopes & Drain Options

Specify a custom Funtek sintered stone shower tray by finished size, drainage fall, point or linear drain, anti-slip surface and drawing requirements.
LuCharlotte LuCharlotte 9 min read Updated

Funtek manufactures complete custom sintered stone shower trays—not only slabs for a wet-room floor. A finished tray can be made to an approved drawing with project-specific dimensions, drainage fall, point or linear drain position, anti-slip surface treatment, and defined edge or threshold details.

Production formatMade to an approved drawing
DrainagePoint or linear drain layout
SurfaceGrooved or textured anti-slip options

A Custom Shower Tray Is Five Connected Decisions

A usable custom tray is not created by changing length and width alone. The finished size, drain position, drainage fall, walking surface, and installation interface must be coordinated in one drawing because changing any one of them can change the others.

For example, moving a point drain can change the fall planes; changing to a linear drain can change the preferred slope direction; and changing from a raised threshold to a flush entry can change the tray profile and its connection to the surrounding floor. This is why Funtek reviews the whole tray brief before fabrication rather than quoting an isolated rectangle.

Decision What it controls What to send
Finished dimensions Fit, shower-screen position, handling and packing Length, width, shape, finished floor level and site opening
Drain type and position Fall geometry, waste cutout and plumbing coordination Point or linear drain, model if selected, and centre-line coordinates
Drainage fall Water direction, level changes and threshold build-up Approved slope direction and levels on the drawing
Walking surface Grip, tactile feel, cleaning and required test evidence Preferred groove or texture plus the project’s slip-test requirement
Installation interface Support, waterproof connection, screen and surrounding finishes Section detail showing substrate, threshold, wall and floor junctions
Three Funtek custom sintered stone shower tray designs with different colors, profiles and drain positions
Funtek first-party finished tray examples show that color, profile, drain position and surface pattern belong in the same product decision.

Start With the Finished Tray Size and the Real Site Opening

The quotation size should describe the finished tray, not only the rough wall-to-wall opening. A dimensioned plan should also show the shower screen, wall finish, threshold or flush-entry condition, nearby doors, and any access restriction that affects how the finished piece reaches the room.

For a single residence, final site measurements help prevent a custom piece from being fabricated to an early architectural dimension. For hotels, apartments, or repeated bathrooms, provide a room-type schedule that separates identical trays from mirrored or exceptional layouts. A repeated quantity does not make two trays identical when the drain position, handing, or threshold changes.

Funtek supports custom dimensions, but the final manufacturable and shippable size is confirmed during drawing review. This keeps the article honest where a universal maximum would ignore pattern, fabrication, crate design, lifting access, and destination conditions.

Choose Point Drain or Linear Drain Before the Fall Is Designed

The drain type should be fixed before the tray geometry is approved. A point drain normally collects water through several fall planes, while a linear drain can support a more directional fall. The final geometry still depends on the selected drain, its connection detail, the tray profile, and the local plumbing design.

Funtek light-gray grooved sintered stone shower tray with a round point drain
Point-drain example: the drain coordinate and surrounding fall planes must be resolved together.
Funtek gray sintered stone shower floor with a stone-covered linear drain
Linear-drain example: the channel position, cover, outlet and fall direction form one coordinated detail.
Drain option Useful when Drawing inputs to freeze
Point drain The plumbing outlet is concentrated at one position or the project accepts multiple fall planes Drain centre, waste model, cutout, grate level and every finished corner level
Linear drain The design needs a long channel, a directional fall, or a drain cover coordinated with the tray surface Channel length, orientation, offset from walls, outlet location, cover detail and end levels

Do not select a drain only from its visible cover. The tray drawing must coordinate the concealed waste body and connection space as well as the surface opening. If the buyer already has a drain model, its current technical drawing should accompany the RFQ.

Define the Drainage Fall in the Approved Drawing

Funtek can fabricate a project-specific drainage fall, but the required slope and level transitions must come from the approved wet-area design. A universal percentage is not appropriate for every country, drain system, tray size, threshold, accessibility condition, or local code.

The drawing should show the high points, low point or channel, direction of fall, drain elevation, tray perimeter level, and the relationship to the bathroom floor. For a flush-entry shower, the section must also show how the tray meets the adjacent floor without creating an unintended lip or sending water outside the shower enclosure.

A reference photo can communicate the look, but only an approved plan and section can define the drain coordinates, fall direction, threshold and finished levels for fabrication.

The finished tray is one component of a wet-area assembly. The local designer, plumber, waterproofing contractor and installer remain responsible for the supporting structure, membrane, waste connection and compliance of the installed system.

Specify the Anti-Slip Surface by Use, Sample and Test Method

Funtek can provide grooved or textured anti-slip surface options, but the words “anti-slip” are not a complete specification. The buyer should state whether the tray is for a private bathroom, hotel, spa, accessible room, or another environment and identify any test method or classification required by the project.

Slip labels cannot be compared safely when they come from different methods or test conditions. DIN EN 16165, for example, defines methods for evaluating pedestrian-surface slip resistance; the applicable method and acceptance value still need to be selected for the destination and intended barefoot use.

Ask for the actual proposed finish sample, not only a color image. Review the groove or texture under wet, soapy use; check whether it remains comfortable underfoot; and confirm that the cleaning method does not defeat the surface choice. If a named rating is mandatory, put the standard and required result in the RFQ so Funtek can match the request to the appropriate finish and available evidence.

White Funtek custom shower tray with parallel anti-slip grooves beside a fabricated vanity and shower bench
The walking surface is part of the bathroom composition, but its groove pattern and project-specific slip requirement must be approved as functional inputs.

Confirm That the Quote Is for a Finished Sintered Stone Tray

Many search results use “stone shower tray” for products made from stone resin, mineral composite, cast stone, or acrylic-capped materials. Those products may be suitable in their own categories, but they are not the same offer as a fabricated sintered stone tray.

Product description What the buyer receives What to verify
Finished sintered stone shower tray A fabricated tray component made to an approved size, fall, drain and surface brief Material, finish, drawing, drain detail, support interface and packing scope
Stone-resin or mineral-composite tray A moulded or cast product containing mineral filler and resin Actual composition, coating, repair method, sizes and test evidence
Slab-only wet-floor proposal Flat surface material that still requires the tray geometry and complete wet-area system to be created elsewhere Who designs and fabricates the fall, drain, seams, support and waterproof interface

Funtek’s offer for this article is the first category: a complete custom sintered stone shower tray fabricated to the reviewed drawing. The project still needs an approved installation assembly, but the buyer is not merely purchasing an unprocessed slab and being left to invent the tray geometry on site.

For domestic and similar applications, BS EN 14527:2016+A1:2018 is one example of a shower-tray product standard covering characteristics, test methods, cleanability and durability across tray sizes and shapes. The destination specification should identify the standards and evidence required for the actual project.

Send a Quote-Ready Drawing Instead of a Reference Image Alone

A useful quotation can start from a hand sketch, but fabrication should proceed only from an approved dimensioned drawing. Send enough information for Funtek to understand the finished component, the repeated quantity, and the delivery conditions.

The minimum useful RFQ includes:

  • finished tray length, width, shape and overall profile;
  • point or linear drain type, model if selected, position and outlet direction;
  • approved drainage fall direction and finished levels;
  • raised threshold, low-profile or flush-entry condition;
  • preferred sintered stone color/pattern and anti-slip surface requirement;
  • quantity by room type, including mirrored or exceptional units;
  • destination country, port or delivery address, plus the required timing;
  • plan, section, room photographs and any drain or shower-screen technical drawings.

Copy This Shower Tray RFQ Brief

Hello Funtek,

Project type and number of bathrooms:
Finished tray size (L × W × profile):
Drain type (point / linear):
Drain model and coordinates:
Approved fall direction and finished levels:
Threshold or flush-entry detail:
Preferred color / pattern:
Anti-slip finish or test requirement:
Quantity by room type:
Destination country / port / address:
Required delivery timing:
Attached drawings and reference photos:

If the project is still at concept stage, Funtek can review a sketch and identify missing inputs before quotation. The wider Funtek sourcing process explains how drawings, samples, fabrication details, packing and delivery information are confirmed, while the global shipping guide covers export coordination after the product scope is fixed.

Separate Funtek’s Supply Scope From Local Wet-Area Approval

Funtek can review the product brief, develop the tray fabrication direction, produce the approved custom size, coordinate the point or linear drain opening, fabricate the specified fall, provide the selected anti-slip surface, and prepare the finished pieces for export packing.

The local project team must approve the substrate and support, membrane and waterproof junctions, drain body and plumbing connection, shower-screen interface, movement or perimeter joints, accessibility details, site handling, installation materials and applicable local codes. This responsibility split prevents a surface drawing from being mistaken for a complete building-system approval.

For coordinated walls, niches and panel layouts, continue with the sintered stone shower wall planning guide. For the wider room—including vanities, wet floors and furniture surfaces—use the bathroom slab project page.

The Bottom Line

The fastest path to an accurate custom shower tray quote is a drawing that resolves the decisions competitors often leave as marketing labels. Send the finished dimensions, drain coordinates, approved fall, threshold, anti-slip requirement, quantity and destination; Funtek can then review the tray as a manufactured component rather than quote an incomplete slab area.

Send Your Shower Tray Drawing

Share the finished size, drain position, fall direction, threshold, surface requirement, quantity and destination. Funtek will review the custom tray scope and identify any missing fabrication inputs.

About the author

LuCharlotte

Sintered Stone Specialist & Technical Advisor

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LuCharlotte writes from hands-on experience with sintered stone manufacturing, material testing, and project specification. She focuses on practical guidance for architects, designers, fabricators, and project buyers, covering surface performance, slab formats, fabrication logic, finish selection, and application suitability. Her goal is to make technical material decisions clearer, more accurate, and easier to verify.

Custom Sintered Stone Shower Tray Questions

01

Are Funtek shower trays made from sintered stone or stone resin?

The custom trays described in this article are fabricated sintered stone shower trays, not moulded stone-resin products. The approved quotation and drawing should identify the selected surface, tray construction, drain detail and supply scope.

02

Can Funtek customize the shower tray size and drain position?

Yes. Funtek can review custom finished dimensions and point or linear drain positions from a project drawing. Final feasibility is confirmed after the drain, fall, profile, quantity, packing and delivery conditions are reviewed together.

03

Can a custom sintered stone shower tray use a linear drain?

Yes. Funtek supports linear-drain and point-drain layouts. The drawing should show the drain model or required opening, channel length, orientation, outlet position, cover detail and approved finished levels.

04

Are Funtek sintered stone shower trays anti-slip?

Funtek offers grooved or textured anti-slip surface options. If the project requires a named slip class or test method, state it in the RFQ so the proposed finish, sample and available evidence can be reviewed at the correct scope.

05

What information is needed for a custom shower tray quotation?

Send finished dimensions, tray profile, point or linear drain details, approved fall direction and levels, threshold or flush-entry condition, preferred surface, anti-slip requirement, quantity, destination and available plan or section drawings.