The Complete Guide to SPC Flooring
Structure, Specifications, Manufacturing & Buying Guide
JIA YUE TRADING · Knowledge Base · Updated August 2026
What Is SPC Flooring?
SPC stands for Stone Plastic Composite (also known as RVP — Rigid Vinyl Plank in European and American markets). It is a next-generation rigid core flooring product that combines the durability of stone with the workability of plastic, delivering exceptional strength, water resistance, and dimensional stability.
Unlike traditional vinyl flooring or laminate, SPC's core is made from limestone powder (calcium carbonate) blended with PVC resin and stabilizers, then extruded under high temperature. This creates a dense, rigid board that is 100% waterproof, dimensionally stable, and highly resistant to impact — making it one of the fastest-growing flooring categories worldwide.
Why SPC is dominating the market: SPC flooring combines the waterproof performance of luxury vinyl, the rigid stability of laminate, and the authentic look of natural wood or stone — all at a competitive price point. It is suitable for both residential and commercial applications.
SPC Flooring Structure: 5 Layers Explained
A high-quality SPC floor is engineered from multiple layers, each serving a specific function. Understanding this structure helps you evaluate product quality and choose the right specification for your market.
1
UV Layer (UV Coating)
Protects against scratches, stains, and UV fading. Standard: 5–8 coats.
5–8 coats
2
Wear Layer (Transparent PVC)
Determines durability and abrasion resistance. Thicker = longer lifespan.
0.3 / 0.5 / 0.7 mm
3
Decoration Layer (Color Film)
High-resolution printed film delivering wood, stone, or abstract patterns.
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4
SPC Core (Rigid Base Layer)
The heart of the floor: limestone powder + PVC resin + stabilizers, extruded at high temperature. Provides rigidity and impact resistance.
3.2–7 mm
5
Underlayment (Optional)
IXPE or EVA foam for sound dampening and softer underfoot feel. Cork is available as a premium option.
1.0 / 1.5 mm
Key takeaway: The wear layer thickness is the single most important spec for durability. For residential use, 0.3 mm (12 mil) is standard; for light commercial, 0.5 mm (20 mil) is recommended; for heavy commercial, 0.7 mm (28 mil) is ideal.
Standard Dimensions & Specifications
Plank Width & Length
| Type | Width | Length | Best For |
|---|
| Standard Plank | 183 mm (7.2") | 1,220 mm (48") | Residential, budget projects |
| Wide Plank | 230 mm (9") | 1,530 mm (60") | Premium residential, commercial |
| Marble Tile | 305 mm (12") | 610 mm (24") | Stone-look designs, bathrooms |
| Herringbone | 125 mm (4.9") | 625 mm (24.6") | Decorative patterns, premium interiors |
Thickness Options
📐
Budget Residential
3.2 – 3.5 mm
⭐
Standard (Most Popular)
4.0 mm + 1mm pad
🏢
Light Commercial
5.0 – 5.5 mm
🏬
Heavy Commercial
6.0 – 7.0 mm
Buying tip: The 4.0 mm + 1.0 mm IXPE underlayment configuration is the industry's best-seller — it balances cost, comfort, and performance for most residential and light commercial applications. For high-traffic commercial spaces, choose 5.0 mm or above.
Surface Textures & Embossing
The surface texture of SPC flooring affects both aesthetics and slip resistance. There are three main options:
MOST POPULAR
Wood Grain Embossing
Replicates natural wood texture. Most popular option, pairs with wood-look color films. Shallow depth: 0.6–1.0 mm.
Smooth / Flat
Minimal texture for a clean, modern look. Often used with stone and abstract patterns.
Coral Embossing
Fine stippled texture, primarily used with marble-look designs. Adds slip resistance.
Embossing Depth
| Type | Depth | Application |
|---|
| Shallow Embossing | 0.6 – 1.0 mm | Standard production, subtle texture |
| Deep Embossing | 1.3 mm | Premium products, pronounced tactile feel |
EIR (Embossed In Register) — The Premium Option
EIR technology synchronizes the surface embossing texture with the printed color film pattern below. This means the grooves in the surface align perfectly with the wood grain design — creating a visual and tactile effect nearly indistinguishable from real hardwood.
Why EIR commands a premium price: EIR requires custom embossing cylinders matched to each color film design. The result is a dramatically more realistic wood appearance. If you're targeting the mid-to-high-end market, EIR is a strong differentiator that justifies a 15–25% price premium.
Edge Types: Micro-Bevel vs. Painted Bevel
The edge profile of SPC planks affects the visual appearance of installed floors:
| Edge Type | Description | Visual Effect |
|---|
| Micro-Bevel | Small angled edge (standard production) | Subtle plank separation, clean modern look |
| Painted Bevel (V-Groove) | Larger bevel with paint application | Pronounced plank definition, resembles real hardwood installation |
Most SPC products ship with micro-bevel edges by default. For a more traditional hardwood appearance — especially with EIR embossing — the painted bevel option creates deeper, more visible groove lines between planks.
How SPC Flooring Is Made: 6-Step Production Process
Understanding the manufacturing process helps buyers appreciate why quality varies between factories — and what to look for when sourcing.
1
Raw Material Mixing
PVC resin, limestone powder, stabilizers, and additives are weighed and blended into a uniform dry blend.
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2
Extrusion
Wear layer, color film, and SPC core are thermally bonded through a die, forming a continuous rigid board.
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3
UV Coating
UV-curable lacquer is applied and cured under UV lamps, creating the protective top layer.
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4
Cutting & Grooving
The board is cut to plank dimensions and precision-milled with click-lock edges for floating installation.
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5
Underlayment Lamination
IXPE, EVA, or cork underlayment is bonded to the back (if specified by the customer).
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6
Packaging
Planks are inspected, stacked, and packed into cartons with installation instructions, ready for export.
Quality happens at the extrusion stage: The temperature, pressure, and screw speed during extrusion determine the density, plasticization quality, and long-term stability of the SPC core. This is where premium factories differentiate from budget producers. Always ask your supplier about their extrusion line specifications and plasticization testing.
SPC Flooring Buying Guide: How to Choose
For Residential Projects
- Thickness: 4.0 mm with 1.0 mm IXPE underlayment (best value)
- Wear layer: 0.3 mm (12 mil) minimum
- Embossing: Wood grain, shallow depth
- Size: 183 mm × 1,220 mm standard plank
- Edge: Micro-bevel
For Light Commercial (Offices, Retail)
- Thickness: 5.0 mm with 1.5 mm IXPE underlayment
- Wear layer: 0.5 mm (20 mil)
- Embossing: Wood grain or EIR for premium look
- Size: 230 mm × 1,530 mm wide plank
- Edge: Micro-bevel or painted bevel
For Heavy Commercial (Hotels, Hospitals)
- Thickness: 6.0–7.0 mm
- Wear layer: 0.7 mm (28 mil)
- Embossing: EIR for maximum realism
- Size: Wide plank or herringbone for premium spaces
- Certifications: Require FloorScore, CE, and fire resistance ratings
Frequently Asked Questions
Q: Is SPC flooring 100% waterproof?
Yes. The SPC core is made from stone powder and PVC resin — materials that do not absorb water. Unlike laminate flooring (which has an HDF wood core), SPC can be fully submerged without swelling, warping, or damage. It is ideal for kitchens, bathrooms, basements, and commercial spaces.
Q: What's the difference between SPC and WPC flooring?
Both are rigid vinyl flooring, but their cores differ. SPC uses stone powder (calcium carbonate) as the primary filler, making it denser, more rigid, and more dimensionally stable. WPC uses wood flour and a foaming agent, giving it a softer, warmer feel underfoot but slightly less rigidity. SPC is generally more affordable and better suited for high-traffic commercial use.
Q: Does SPC flooring need underlayment?
It depends. Many SPC products come with pre-attached IXPE or EVA underlayment (1.0–1.5 mm). If your subfloor is uneven or you need extra sound insulation, you can add a separate underlayment. However, avoid thick foam underlays — SPC is a rigid floor and requires firm support to prevent joint stress.
Q: Can SPC flooring be installed over existing tiles?
Yes, as long as the tile surface is flat, clean, and stable. SPC's click-lock system allows floating installation over most hard surfaces without glue or nails. Grout lines deeper than 2 mm should be skim-coated first to prevent telegraphing.
Q: How long does SPC flooring last?
With proper installation and maintenance, residential SPC flooring typically lasts 15–25 years. Commercial lifespan depends on traffic levels and wear layer thickness: 0.3 mm for light traffic (10–15 years), 0.5 mm for moderate (15–20 years), 0.7 mm for heavy (20+ years).
Need the Right SPC Flooring for Your Project?
JIA YUE TRADING supplies factory-direct SPC, WPC, and wood veneer flooring to distributors and contractors worldwide. Custom sizes, wear layers, colors, and OEM/ODM packaging available.
Request a Quote & Free Samples →
Technical specifications referenced in this guide are based on industry-standard SPC flooring manufacturing parameters, including wear layer thicknesses (0.3–0.7 mm per ASTM F2199), UV coating applications (5–8 passes), and plank dimensions aligned with standard export specifications for North American and European markets. Underlayment materials (IXPE/EVA) and thicknesses (1.0–1.5 mm) follow common industry practice. For project-specific requirements, please consult our technical team.
