Flooring Guide: Four Material Types Compared — Choose Wrong and You'll Regret It for a Decade

Flooring is one of the few renovation choices that's hard to undo. Choose wrong and you may deal with formaldehyde off-gassing, warping in humid rooms, or maintenance hassles for an entire decade. This article clarifies the core differences between the four mainstream flooring types.

---

The Four Mainstream Flooring Types

1. Laminate Flooring (High-Pressure Laminate)

Structure: Wear layer + decorative paper + High-Density Fiberboard (HDF core) + moisture barrier — four layers pressed together.

Characteristics:

• Lowest price; widest design selection (wood grain, marble imitation, etc.)
• Hard surface; scratch and wear resistant
• Cannot be sanded and refinished; damaged planks must be replaced

Core parameter — Abrasion Class (AC rating):

• AC1 (under 900 revolutions): Light residential; not recommended
• AC3 (≥ 1,500 revolutions): Standard residential
• AC4 (≥ 6,000 revolutions): Preferred for most homes
• AC5 (≥ 9,000 revolutions): Recommended for homes with pets or children

Formaldehyde risk: The HDF core uses significant adhesives and is a potential formaldehyde source. Must check environmental rating — prioritize ENF grade (≤ 0.025mg/m³) or E0 grade (≤ 0.050mg/m³). E1 grade (≤ 0.124mg/m³) is the national mandatory minimum; choose higher where possible.

2. SPC (Stone Plastic Composite) Flooring

Structure: Wear layer + decorative film + SPC core (natural stone powder + PVC composite) + backing.

Characteristics:

• Excellent waterproofing — can be used in bathrooms, basements, kitchens (laminate cannot)
• Dimensionally stable; resists warping with temperature changes
• Click-lock installation; no glue required; near-zero formaldehyde
• Firmer underfoot feel, similar to tile
• Typically 4–8mm thick; thinner than other flooring types

Best for: Southern humid climates, kitchens, basements, homes with pets

Warning: Low-quality SPC flooring may use recycled PVC, producing a sharp chemical odor. Before buying, smell the sample; normal SPC is odorless or has a faint wood scent.

3. Engineered Hardwood Flooring

Structure: Top solid wood veneer (or thin wood slice) + multi-layer plywood core + stabilizing backing layer — cross-laminated.

Characteristics:

• Natural wood grain appearance; warm underfoot feel
• Structurally stable; less prone to warping than solid hardwood
• Can be sanded and refinished (limited number of times)
• Compatible with radiant floor heating (more even heat distribution than solid hardwood)

Core parameters — layer count and veneer thickness:

• Thicker top veneer (recommended ≥ 1.5mm) = more wear resistant and better natural grain appearance
• More layers (9-ply, 15-ply) = more structurally stable, better warp resistance

Formaldehyde: Multi-layer construction uses significant adhesive; must check environmental rating (ENF or E0).

4. Solid Hardwood Flooring

Structure: Single piece of natural wood, no laminated layers.

Characteristics:

• Best underfoot feel; warm in winter, cool in summer
• Natural grain; every plank is unique
• Near-zero formaldehyde
• High maintenance: regular waxing or oiling; avoid water and direct sunlight
• Sensitive to humidity changes; may warp in humid southern summers
• Highest price

Best for: Sufficient budget, dry interiors (with HRV/dehumidifier systems), those who appreciate the natural wood aesthetic.

---

Core Parameter Comparison

Type	Waterproofing	Formaldehyde risk	Underfoot feel	Maintenance	Price
Laminate	Poor; not water-resistant	Medium-high (depends on rating)	Hard	Easy; cannot refinish	Low
SPC	Excellent	Near-zero	Hard	Easy	Low-medium
Engineered hardwood	Moderate; avoid standing water	Medium (depends on rating)	Warm	Occasional care	Medium-high
Solid hardwood	Poor; avoid any water	Near-zero	Best	Regular upkeep	High

---

Environmental Ratings: Must Confirm Before Buying

China's current flooring formaldehyde standards:

Grade	Formaldehyde limit	Notes
ENF	≤ 0.025 mg/m³	Newest, strictest standard — recommended
E0	≤ 0.050 mg/m³	Stricter; acceptable choice
E1	≤ 0.124 mg/m³	National mandatory minimum

E1 is the passing grade. Homes with infants, pregnant women, or allergy sufferers should insist on ENF or E0.

---

Flooring by Room

Room	Recommended	Reason
Living room / bedroom	Engineered hardwood, Laminate (AC4+)	Balance of aesthetics and durability
Kitchen / bathroom	SPC	The only waterproof flooring option
Basement	SPC	Moisture and waterproof
Elderly / children's room	Engineered hardwood, solid hardwood	Warm feel, low formaldehyde
Radiant heating floors	SPC, engineered hardwood	Even heat conduction, dimensional stability

---

Parameters referenced from GB/T 18103, GB/T 18580, and other relevant national flooring standards.