HIDE
HIDE 12.5" Drain Cover Kit
HIDE 12.5" Drain Cover Kit

HIDE 12.5" Drain Cover Kit

HIDE
SKU:
HDC12.5
$300.00

Hide a patio or deck drain beneath the surrounding surface while water flows through the narrow gap around this 12.5-inch HIDE cover.

  • Conceals the look of a traditional drain grate
  • Perimeter gap allows surface-water drainage
  • 316L marine-grade stainless steel
  • Removable for drain access and cleaning
Choose your inlay depth Select the depth that matches your finished surface and installation requirements. Which inlay depth do I need?
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Confirm before ordering

Is this the right HIDE kit for your project?

Verify the application, opening and finished surface before selecting a depth.

What’s included

Representative HIDE cover kit with stainless-steel frame and tray, safety key, height adjuster, adhesive and documentation
Representative HIDE kit shown. Exact components vary by cover model and selected depth.
  • 316L stainless steel drain inlay lid
  • 316L stainless steel drainage edge frame
  • HIDE Safety Key access tool(s)
  • HIDE adhesive, 2 mm height adjuster and documentation

Surface inlay, drain pit, pipe and outlet are not included. Concrete wet-pour compatibility depends on the exact selected kit; verify the specific SKU.

Verify these product details

  1. 1
    ApplicationPatio and deck surface-water drainage in pedestrian areas; drain pit, pipe and outlet system are supplied separately.
  2. 2
    Required openingClear underside opening: approximately 10 1/4 inches square; consult the drain installer for pit and outlet suitability.
  3. 3
    Overall outside sizeNominal 12.5-inch square kit; confirm the exact frame recess from the current supplied drawing before cutting.
  4. 4
    Load and use ratingPedestrian-only surface-water application; not rated for vehicles. Drainage capacity depends on slope, head and site hydraulics.

Have a qualified drain professional verify site slope, inlet conditions, clear opening and outlet capacity. The published 17.8 GPM figure is a general guide, not a design guarantee.

Check the depth chart Ask SPI Supply
How HIDE works

A concealed cover in three steps

The stainless-steel system supports your selected surface material while preserving access to the point below.

Finished HIDE inlay cover being lifted with the removable safety key
The removable safety key provides access while allowing the installed cover to remain visually concealed when closed.
  1. 1

    Set the frame

    Install and level the edge-protector frame within the prepared surrounding surface.

  2. 2

    Fit the inlay

    Cut and secure matching tile, stone, paver, decking, turf, or another suitable finish inside the tray.

  3. 3

    Blend and access

    The finished lid sits flush with its surroundings and lifts with the supplied HIDE key when access is needed.

Depth selection chart

Match your finished surface to the correct depth

Measure the finished material, including adhesive or setting bed, then use the chart to select the appropriate inlay depth.

HIDE inlay depth recommendations by surface material and finished thickness
Surface material Material thickness Required depth
Tile / Turf 3/8″ to 1/2″ (1 cm) 0.4″ depth
Porcelain 5/8″ to 7/8″ (2 cm) 0.8″ depth
Travertine Paver 1″ to 1 1/4″ (3 cm) 1.2″ depth
Stone / Concrete 1 3/8″ to 1 5/8″ (4 cm) 1.6″ depth*
Brick / Stone / Concrete 1 3/4″ to 2″ (5 cm) 2.0″ depth*
Brick / Thicker Stone 2 1/4″ to 2 1/2″ (6 cm) 2.5″ depth*

* Deeper kits may include concrete-conversion components. Available depths and components vary by cover type and size; choose only from the options shown for this product.

Between sizes or planning a concrete installation? We can help verify the cover size, finished material thickness and complete kit before you order.
Ask SPI Supply
Project inspiration

Designed to disappear into the finished surface

Explore installed applications, finish ideas, technical drawings and kit details from this product’s gallery.

Finished HIDE cover aligned with surrounding stone paving
Finished installation
Before and after comparison replacing a visible drain grate with a stone-inlay HIDE cover
Stone-finish transformation
Before and after comparison replacing a green drain grate with a paver-inlay HIDE cover
Paver-finish transformation
Installation and support

Plan the installation before you order

Confirm the opening, finished material thickness and installation requirements with your contractor. Use the documents below for product-specific planning.

Manufacturer video

Watch the HIDE installation overview

Review the manufacturer’s installation process before selecting a kit or beginning site preparation. Always follow the instructions supplied for the exact product and depth selected.

Watch directly on Vimeo
PDFContractor installation adviceGeneral preparation and installation guidance for qualified contractors. PDFInstallation instructionsProduct-specific planning and installation guidance. PDFTechnical specificationsDimensions, opening requirements and technical product details. PDFFlow-rate guideDrainage performance information for applicable installations. PDFWarranty and care guideSafe use, cleaning, maintenance and warranty information.
Frequently asked questions

Questions before installation

Still unsure? SPI Supply can help verify the kit before you order.

Ask a product question
How do I choose the correct inlay depth?

Measure the total finished thickness of the material that will sit inside the cover, including the adhesive or setting layer. Match that measurement to the depth chart above, then choose from the options available on this product.

Can a HIDE cover be installed in an existing deck?

Many HIDE covers can be used for retrofit projects. The opening dimensions, clearance, finished surface thickness and site conditions must be checked before ordering or altering the deck.

Should a professional install the cover?

Professional installation is strongly recommended. Have a licensed, suitably experienced contractor read and follow the applicable installation instructions before work begins; incorrect installation can affect warranty coverage.

What is included with a HIDE kit?

Kit contents vary by cover model and selected depth. Review the product-specific “What’s included” list above, the product description and the applicable technical documents before ordering.

How should the cover be cleaned and maintained?

Remove accumulated debris and clean the exposed surface appropriately for the surrounding finish. Do not allow acid or chemical-wash solutions to contact the stainless-steel components, and always store the safety key securely away from children.

Product details & specifications

HIDE HDC12.5 Drain Cover Kit – 12.5" Square, Inlay-Ready Stainless Cover

SKU: HDC12.5 (parent)  |  MPN: HDC12.5 (parent)  |  Brand: HIDE

Quick Facts: 12.5" × 12.5" cover | 316L stainless construction | Inlay depths: 0.4", 0.8", 1.2", 1.6", 2.0", 2.5" | Concrete compatible at 1.6", 2.0", 2.5" depths | Pedestrian traffic rated
  • Seamlessly conceals drain access with your chosen surface material, for a flush, premium finish.
  • Constructed with marine-grade 316L stainless steel to resist corrosion and outdoor wear.
  • Multiple depth options so the cover’s inlay matches your deck or patio material thickness.
  • Concrete-compatible conversion supplied on 1.6", 2.0", 2.5" depths for wet-pour installations.
  • Flush design includes a ¼" gap between frames for drainage and meets pedestrian safety standards.

Technical Specifications

Key Specs
Cover Size 12.5" × 12.5" square
Material 316L marine-grade stainless steel components
Available Depth Variants 0.4", 0.8", 1.2", 1.6", 2.0", 2.5"
Concrete Compatible Yes, 1.6", 2.0", 2.5" depths with conversion kit
Under-frame Clearance (Internal Opening) 10 ¼" square underside opening on many variants
Traffic Rating Pedestrian only
Warranty 10 years (varies by maintenance & install)

Overview

The HIDE HDC12.5 Drain Cover Kit is a 12.5-inch square, inlay-ready drain access solution crafted to match your surface material for a hidden, high-end finish. Each variant is engineered to align with your deck’s thickness while maintaining full drainage performance. Designed for outdoor patio or pedestrian surfaces, this kit lets you select from multiple depths—including a concrete-conversion option—to get both aesthetics and function.

What’s Included

  • Stainless steel inlay tray (compatible with stone, tile, pavers, turf, etc.)
  • Edge frame assembly with drainage-gap between frames (~¼")
  • Fixing hardware and height adjusters
  • Concrete conversion kit for 1.6", 2.0", 2.5" depth variants
  • Installation instructions and warranty documentation

Compatibility & Replacements

Designed for pedestrian traffic only. Works with standard 3- to 4-inch drainage outlet under deck/patio. Choose the variant depth that matches your inlay material thickness. Replaces traditional drain covers by offering a hidden inlay solution.

Installation & Notes

  • Ensure slope leading to drain meets local code; mortar gradient to pipe recommended.
  • Concrete conversion kit included only with the 1.6", 2.0", 2.5" depths; others are not concrete suitable.
  • Under-frame underside clearance must be verified for installation (~10 ¼" in many variants).
  • Avoid acid or chemical wash on stainless steel to prevent staining or discoloration.

Drain Cover Installation Instructions

Drain Cover Flow Rate Specifications

Drain Cover Technical Specifications

Warranty & Care Guide

Shipping & Returns

Ships from the USA. 30-day returns; customer pays return shipping. Please see our Shipping & Returns policy for details.

Additional Information

HIDE Summary:
Hide a patio or deck drain beneath the surrounding surface while water flows through the narrow gap around this 12.5-inch HIDE cover.
HIDE Fact 1:
Conceals the look of a traditional drain grate
HIDE Fact 2:
Perimeter gap allows surface-water drainage
HIDE Fact 3:
316L marine-grade stainless steel
HIDE Fact 4:
Removable for drain access and cleaning
HIDE Application:
Patio and deck surface-water drainage in pedestrian areas; drain pit, pipe and outlet system are supplied separately.
HIDE Opening:
Clear underside opening: approximately 10 1/4 inches square; consult the drain installer for pit and outlet suitability.
HIDE Outside Size:
Nominal 12.5-inch square kit; confirm the exact frame recess from the current supplied drawing before cutting.
HIDE Load Rating:
Pedestrian-only surface-water application; not rated for vehicles. Drainage capacity depends on slope, head and site hydraulics.
HIDE Included 1:
316L stainless steel drain inlay lid
HIDE Included 2:
316L stainless steel drainage edge frame
HIDE Included 3:
HIDE Safety Key access tool(s)
HIDE Included 4:
HIDE adhesive, 2 mm height adjuster and documentation
HIDE Included Note:
Surface inlay, drain pit, pipe and outlet are not included. Concrete wet-pour compatibility depends on the exact selected kit; verify the specific SKU.
HIDE Product Note:
Have a qualified drain professional verify site slope, inlet conditions, clear opening and outlet capacity. The published 17.8 GPM figure is a general guide, not a design guarantee.
HIDE Vimeo Video:
373802978
HIDE Contractor PDF:
https://spi.supply/content/hide/HIDE-Contractor-Installation-Advice.pdf
HIDE Install PDF:
https://spi.supply/content/hide/HDC-Drain-Cover-Install-Instructions.pdf
HIDE Technical PDF:
https://spi.supply/content/hide/HIDE-drain-cover-technical-sheet-USA.pdf
HIDE Flow PDF:
https://spi.supply/content/hide/USA%20-%20HIDE%20Drain%20Covers%20Flow%20Rate%20HDC314.pdf
HIDE Warranty PDF:
https://spi.supply/content/hide/Homeowners-Manual-Warranty.pdf
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