The Wet-Dec is a pre-formed shower base developed specifically to allow the installation of a wetroom onto a timber floor. Available in a range of sizes, the Wet-Dec has a built-in gradient ensuring that water from the shower is directed towards the drain outlet. The Wet-Dec has a built-in four-way fall which provides a consistent gradient, making it ideal for use with mosaic tiles. Each Wet-Dec is supplied with our height adjustable shower drain which is available in a brushed stainless steel finish or with our new Stone-Infill Grill. The Stone-Infill grill is suitable for use with natural stone and porcelain tiles, which are simply inserted into the empty grill.
The four way fall provides a consistent gradient of approximately 12mm to the drain, making it ideal for the installation of mosaic tiles.


Key Features

  • Designed for timber floors
  • Four-way fall – suited to mosaic tiles
  • 8 pre-formed sizes
  • Trimmable
  • Lifetime guarantee
  • Flow rate up to 27 L/Min
  • Height Adjustable grill
  • Flexible Drain Outlet


Wet room Trap with grill and drain

The Wet-Dec is manufactured using a high-density XPS foam with a mineral coating on both sides, making them both lightweight and easy to handle, whilst ensuring a consistent four-way gradient every time. The four-way fall provides a consistent gradient of approximately 17mm to the drain, making it ideal for the installation of mosaic tiles.

  • Dec Sizes

    The Wet-Dec is available in 8 pre-formed sizes:

    ABWet-Dec wet room sizes & dimensions
  • Trap


    Wet-Dec grill drain and trap exploded view

    The trap has an adjustable ball joint and comes with removable dip-tube. The trap is located within the base component which comes un-drilled allowing for extra flexibility.

    • Multi-directional outlet
    • 50mm Water seal
    • 50mm Outlet, supplied with 50mm-42mm reducer
    • BS1455/1566
    • Easy to maintain
    • Flow rate up to 27 L/min
  • Grill Finish

    The square grill is available in various different finishes. All are manufactured in 316 marine grade stainless steel, ensuring a stunning high quality finish. The grill is available in a Solid, Slotted or Stone-Infill finish. 
    Grill dimensions: 150mm x 150mm. To cope with different tile thicknesses the grill is adjustable between 12mm-20mm. Type A solid grill is supplied as standard unless otherwise specified. The Stone-Infill Grill enables natural stone or porcelain floor tiles to be inserted into the stainless steel grill for a stunning, streamlined finish to your wetroom.
    Wet-Dec grill type - Solid GrillWet-Dec grill type - Oblong SlotsWet-Dec grill type - Ston-Infill Grill
    Type A – Solid Grill:  Grained stainless steel with a 5mm gap around the grill for a sleek stylish finish.
    Type B – Oblong  Slots: Rows of oblong slots in a grained stainless steel finish.
    Type S – Stone -Infill Grill. Allows a section of tile to be inserted to provide a sleek continuous look. Suitable for 10-12mm stone/porcelain tiles. Bespoke depths available to order.

    Height Adjustment

    The grill is height adjustable in 1mm increments to suit tile thicknesses of 6mm to 20mm. Additional spacers are available upon request for tiles thicker than 20mm.

    Wet Room Drainage System Adjustable Grill Height


    Product Details

    A Table of CCL Wetrooms Wet-Dec products & specifications: Including Dec size & drain position

  • How to Specify

    To specify your Wet-Dec, first select the required size of shower area, followed by the grill height and finally the grill finish.

    Example: 1500mm x 900mm Wet-Dec with solid grill would be code: WD22/TYPEA 

    It is essential that the floor is waterproofed or ‘tanked’ using one of the membranes in the ‘product details’ section. For timber floors we would recommend the RIW Tilesafe membrane is applied to the entire wetroom floor. RIW FWM should then be applied to the walls of the shower area, plus an additional 300mm and overlapped onto the RIW Tilesafe Reinforcing Tape.

    Cross Section showing Wet-Dec and overlapping RIW FWM

    Cross section of timber floor and RIW Tilesafe Membrane & flexible waterproof membrane