what does SPC or WPC core mean?
Jan 01, 2026
"SPC" and "WPC" refer to the core material of rigid luxury vinyl flooring (like LVP and LVT), and it's the most important technical difference affecting performance. Think of the core as the foundation of the floor.
Here's a detailed comparison:
| Feature | SPC Core (Stone Plastic Composite) | WPC Core (Wood Plastic Composite) |
|---|---|---|
| Primary Composition | Limestone powder (calcium carbonate), PVC, stabilizers. | Wood pulp/wood flour, PVC, foaming agents. |
| Core Feel & Structure | Extremely dense, rigid, and mineral-like. | Less dense, has a foamed cellular structure, slightly softer. |
| Key Advantage | Superior dimensional stability. Resists expansion/contraction best. | Better underfoot comfort and sound absorption. |
| Durability | Exceptionally hard, highly resistant to permanent indentation from heavy furniture. | Good durability, but softer core can be more susceptible to dents under extreme, pinpoint pressure. |
| Water Resistance | 100% waterproof. The limestone core is impervious to water. | 100% waterproof. The plastic encapsulation makes it waterproof. |
| Subfloor Compatibility | Excellent for uneven subfloors (within manufacturer's tolerance). Its rigidity bridges minor gaps better. | Requires a very flat, smooth subfloor. Its softer core can telegraph imperfections over time. |
| Underfoot Comfort & Noise | Very hard and cold underfoot, similar to ceramic tile. Can be noisier (clicking sounds). | Softer, warmer, and quieter underfoot. Provides more cushion and sound dampening. |
| Typical Thickness | Often slightly thinner for the same overall plank height. | Often requires a thicker core to achieve rigidity, sometimes making the overall plank thicker. |
| General Price Point | Often slightly more affordable. | Often slightly more expensive. |
