The Rock — 6mm Waterproof SPC (Republic Floor)

The Rock is a rigid-core SPC line from Republic Floor, built for rooms where water and daily wear are a given. Each plank runs 6mm total with a stone polymer core, a 20 mil wear layer, and an attached acoustic EVA underlayment, so the pad is already built in and no separate underlayment goes down at install. Planks measure 9″ x 60″ and join with an angle-drop click-lock system for a floating, glue-free install rated for above, on, or below-grade subfloors. The line ships in 6 colors spanning medium greys, light browns, and medium beiges, backed by a 50-Year Residential / 10-Year Commercial warranty and FloorScore certification for indoor air quality. The Rock is available to order through our Santa Clara showroom.

The Rock specifications

• Core & thickness: SPC (Stone Polymer Core), 6mm total
• Wear layer: 20 mil
• Plank size: 9″ x 60″
• Locking: Angle-drop click-lock · Underlayment: attached acoustic EVA underlayment
• Coverage: 30.5 sq ft/carton · Waterproof: yes, 100% waterproof core with no time limit
• Warranty: 50 Years Residential / 10 Years Commercial
• Certifications: FloorScore
• Colors: 6, spanning medium grey, light brown, and medium beige

Colors in The Rock

The Rock’s 6 colors group into three families: a medium grey (Ellen), light browns (Filitosa, Zurich Tan), and medium beiges (Ivory Buff, Ivory Fantasy, Splendor Satin). That range gives you a cool, contemporary option alongside warmer neutrals, so the line works whether the room leans toward a modern grey palette or a softer, traditional wood tone. Every color shares the same 6mm SPC build, so the choice comes down to look, not performance.

Best uses for The Rock

• Kitchens and bathrooms — the SPC core is genuinely waterproof with no time limit, so spills and splashes aren’t a risk.
• Basements — rated for above, on, or below-grade installation, including slab-on-grade basements.
• Pet households and high-traffic rooms — the 20 mil wear layer and rigid core hold up to claws, foot traffic, and rolling furniture.
• Open-concept living spaces — the 9″ x 60″ plank and click-lock system run continuously from room to room without transitions.
• Rooms with radiant heat — compatible with hydronic and embedded radiant systems, provided the floor surface stays at or below 85°F.

Choosing a color from The Rock

In a bright, south-facing room the cooler grey of Ellen keeps things crisp, while the light browns and beiges — Filitosa, Ivory Buff, Ivory Fantasy, Splendor Satin, and Zurich Tan — read warmer and hide daily dust better in lower-light rooms or spaces with darker cabinetry. Because SPC color can shift slightly under different lighting, bring a sample home or view it under your own room’s cabinetry and fixtures at our Santa Clara showroom before ordering.

Frequently asked questions about The Rock

Is The Rock waterproof?

Yes. The stone polymer core is 100% waterproof with no soak-time limit, which is why it’s rated for kitchens, bathrooms, and below-grade rooms.

Can The Rock go over radiant heat?

Yes, it’s compatible with hydronic and embedded radiant heat systems as long as the floor surface temperature doesn’t exceed 85°F.

Is The Rock a DIY-friendly install?

Yes. Planks are a floating angle-drop click-lock floor — no glue or nails — with the acoustic pad already attached, so there’s no separate underlayment to buy or lay down.

How much does one carton of The Rock cover?

Each carton covers 30.5 sq ft, among the highest per-carton coverage in our SPC lineup, which typically means fewer cartons to order and less waste for a given room size.

Do I need a moisture barrier over a concrete subfloor?

Yes, a 6-mil poly vapor barrier is mandatory under any installation over concrete, including on-grade and below-grade slabs.