SPC壁パネル—also known as Stone Plastic Composite wall panels—have become one of the fastest-growing categories in the global decorative materials market, especially for waterproof interior wall cladding. Their outstanding features such as water resistance, durability, aesthetic versatility, and easy installation make them highly suitable for both residential and commercial projects.

For architects, interior designers, wholesalers, and global distributors, understanding the standard dimensions of SPC wall panels is essential for accurate procurement, project planning, logistics calculation, and installation cost estimation. Dimensions directly influence transportation efficiency, labor duration, installation methods, and finished visual appearance.

This comprehensive article explains all commonly used standard dimensions of SPC waterproof wall panels, including thickness, width, length, profile variations, matching accessories, and the impact of sizing on applications. It also dives into customization options, export considerations, packing methods, and factory production capabilities—helping B2B buyers make informed purchasing decisions.

What Are SPC Waterproof Wall Panels? A Brief Overview

SPC wall panels are made from a composite mixture of:

• Calcium carbonate (limestone powder)
• Polyvinyl chloride (PVC) resin
• Stabilizers and plasticizers
• Color film layers
• Wear-resistant coating or embossed surface

The material is produced through high-temperature extrusion, combining rigidity with flexibility, making SPC panels structurally stable, waterproof, mold-resistant, and fire-resistant. Compared with PVC panels, SPC offers:

• Higher density
• Better impact resistance
• Stronger waterproof performance
• Improved acoustic effect
• Longer service life

Because of these advantages, SPC wall panels are widely used in:

• Hotels
• Apartments
• Hospitals
• Offices
• Commercial spaces
• Restaurants
• Schools
• Public buildings
• Residential living rooms, bedrooms, bathrooms, and kitchens

Their rapid installation system—usually using click-lock, tongue-and-groove, or seamless joint—reduces labor costs and construction time significantly.

Before importing or specifying SPC panels for a project, the dimensions play the most critical role. Below are the detailed standard sizes used globally.

Standard Dimensions of SPC Waterproof Wall Panels

SPC wall panels come in several standard dimensions based on different installation systems, production mold sizes, and market preferences. The main parameters include:

• 厚さ
• Width
• Length
• Joint type
• Surface type
• Weight per piece
• Packaging method

Below is the full breakdown.

1.Standard Thickness Options

SPC wall panels typically range from 4 mm to 12 mm, depending on usage scenarios:

厚さ	Typical Use Case	Strength Level	Notes
4 mm	Light residential / decorative walls	Basic strength	Most economical; used for light renovation
5 mm	Residential & commercial walls	Medium	Popular for landlords & fast decoration
6 mm	Hotels, apartments, commercial	Strong	Most popular global standard
7 mm	High-end commercial & public areas	Higher	Ideal for impact-resistant areas
8–12 mm	Acoustic + decorative walls	Very strong	Often used for slat-style SPC panels

Most commonly exported SPC wall panel thickness:
➡ 5 mm, 6 mm, 7 mm, 9 mm

Thickness affects rigidity, sound absorption, weight, cost, and installation environment.

2.Standard Width Options

SPC wall panels have three main width categories:

A. Narrow Panels (120–200 mm)

• Most common widths: 150 mm / 180 mm
• Often used for slat-style, wood-style, or stripe-style panels
• Creates a high-end vertical rhythm effect
• Suitable for hotels, TV walls, and feature walls

B. Medium Width Panels (240–350 mm)

• Most common widths: 250 mm / 300 mm / 330 mm
• Popular for marble textures or seamless large-surface panels
• Balanced between installation efficiency and visual appeal

C. Wide Panels (400–600 mm)

• Common widths: 400 mm / 600 mm
• Often used for large bathrooms, hotel corridors, living rooms
• Faster installation
• More luxurious look

Most widely exported widths:
➡ 150 mm, 180 mm, 300 mm, 400 mm, 600 mm

3.Standard Length Options

SPC waterproof wall panels are produced in lengths between 2.4 m and 3.0 m. The most common include:

Length	申し込み	Benefits
2.4 m (2400 mm)	Apartments, bathrooms	Fits most wall heights; best for shipping
2.7 m (2700 mm)	High ceilings, hotels	Popular in Southeast Asia, Middle East
2.9 m (2900 mm)	Villa / commercial spaces	Better continuity on high walls
3.0 m (3000 mm)	Luxury hotels, commercial	Less joints, seamless effect

Most popular export length:
➡ 2.8–3.0 m

Because longer panels reduce visible seams, they are preferred for modern interiors—weighing slightly more but improving customer satisfaction.

4.Standard Joint Types

SPC waterproof wall panels generally feature:

Seamless joint

Click-lock SPC joint

Tongue-and-groove joint

V-groove decorative line joint

U-groove imitation wood joint

Different joint types influence:

• Installation speed
• Waterproof performance
• Visual seam effect
• Handling during transport

Click-lock and T&G are the preferred global standards due to their structural strength and convenience.

5.Popular Size Combinations (Global Standards)

Below are the most commonly exported SPC wall panel sizes (B2B standard):

A. Marble Texture SPC Wall Panels

• 300 mm × 2600 mm × 6 mm
• 400 mm × 2800 mm × 6 mm
• 600 mm × 3000 mm × 6 mm

B. Wood Grain SPC Wall Panels

• 150 mm × 2700 mm × 9 mm
• 180 mm × 2800 mm × 8 mm
• 200 mm × 2900 mm × 7 mm

C. Acoustic SPC Slat Panels

• 150 mm × 2700 mm × 12 mm
• 180 mm × 2800 mm × 12 mm

D. Commercial High-Demand Sizes

• 300 mm × 3000 mm × 7 mm
• 400 mm × 3000 mm × 7 mm

These combinations provide the best balance between transportation efficiency, aesthetics, and installation performance.

6.Matching Accessories Dimensions

SPC panels require accessory profiles for installation:

Accessory Type	Standard Size
Inner corner	2700–3000 mm × 20–30 mm
Outer corner	2700–3000 mm × 20–30 mm
Edge trim	2700–3000 mm × 20–40 mm
Skirting board	2700–3000 mm × 50–80 mm
Joint strip	2700–3000 mm × 20–30 mm

Accessories are usually made from SPC material or PVC, matched with the same color film.

Factors Influencing the Dimensions of SPC Waterproof Wall Panels

The standard size of SPC panels is not random—it is designed based on multiple engineering and market factors. Understanding these helps buyers make smarter choices.

1.Production Mold Limitations

SPC panels rely on extrusion lines with fixed mold sizes. A factory may have:

• Mold for 150 mm
• Mold for 180 mm
• Mold for 300 mm
• Mold for 400 mm
• Mold for 600 mm

Custom molds require extra cost and minimum order quantity.

2.Installation Environment

Different markets prefer different sizes:

• Southeast Asia: 300 mm / 400 mm
• Middle East: 300 mm / 600 mm
• Europe: narrow slat-style 150 mm / 180 mm
• United States: 600 mm wide panels for fast installation

Tall ceilings require longer 2.9–3.0 m panels.

3.Shipping Container Optimization

Factories recommend specific lengths for container loading:

• 20GP: best for 2.4 m panels
• 40HQ: suitable for 2.7–3.0 m panels

Longer panels reduce joints but increase shipping cost.

4.Material Stability

Thicker panels (7–12 mm) perform better in:

• Heavy-traffic areas
• Humid environments
• Impact-prone areas

They also support deeper embossed textures.

5.Project Budget

Wider and thicker panels cost more but reduce labor.

Narrower and thinner panels are cheaper but require more pieces and labor.

Applications of SPC Waterproof Wall Panel Dimensions

Different sizes are suitable for different applications. Below is a complete guide.

1.150–180 mm Width (Narrow Panels)

Best for:

• TV background walls
• Wood slat acoustic panels
• Corridors
• Hotel lobbies
• Decorative partitions

Creates a modern, high-end visual effect.

2.250–300 mm Width (Medium Panels)

Best for:

• Living rooms
• ベッドルーム
• Restaurants
• キッチン
• General hotel walls

Perfect for both marble and wood textures.

3.400–600 mm Width (Large Panels)

Best for:

• Hotel rooms
• Commercial spaces
• バスルーム
• Office walls
• Public areas

Very fast installation and premium seamless effect.

4.2.9–3.0 m Length (Long Panels)

Best for:

• High walls
• Luxury hotel projects
• Offices
• Villas

Minimizes visible seams and enhances premium appearance.

Customization Options for SPC Wall Panels (OEM & ODM)

Manufacturers, including Chinese SPC panel factories, usually offer full customization services for B2B customers.

Customizable Parameters Include:

• Thickness (4–12 mm)
• Width (120–600 mm)
• Length (2.4–3.0 m)
• Embossing texture
• Color film patterns
• Surface finish (matte, glossy, super matte, marble, wood)
• Acoustic back felt options
• Joint system
• Packaging and logo printing

MOQ for custom size:

Typically 1000–5000 m² depending on factory capability.

Production Lead Time

• Standard items: 7–12 days
• Custom molds: 25–35 days
• Large orders: 20–30 days

Factories with multiple extrusion lines can deliver faster.

Export Packaging Options

• Carton box
• Shrink film + carton
• PE bag + pallet
• Custom packaging with branding

Good packaging prevents warping, scratching, and cracking during transit.

How to Choose the Right SPC Wall Panel Dimensions for Your Project

For contractors, developers, wholesalers, and distributors, selecting the right dimensions ensures the best balance of cost, efficiency, and aesthetics.

Here are the key decision factors:

1.Based on Wall Height

Wall Height	Recommended Panel Length
Below 2.5 m	2.4 m panels
2.6–2.8 m	2.7 m panels
2.9–3.2 m	3.0 m panels

Longer panels = fewer seams + cleaner look.

2.Based on Installation Speed

If your goal is fast installation:

➡ Choose 400–600 mm wide SPC panels
They reduce labor time by 40–60%.

3.Based on Interior Style

• Modern → 150 mm / 180 mm slat design
• Luxury → 300–600 mm marble look
• Industrial → 300 mm stone patterns
• Scandinavian → 180 mm natural wood grain

4.Based on Project Budget

Lower budget:
➡ 4–5 mm thickness
➡ 250–300 mm width

High-end projects:
➡ 7–12 mm thickness
➡ 150 mm / 600 mm premium panels

5.Based on Shipping Cost

If importing to far markets:
➡ Choose 2.4 m or 2.7 m lengths to reduce freight cost.

If budget allows and aesthetics matter:
➡ Choose 3.0 m for perfect seamless results.

結論

The standard dimensions of SPC waterproof wall panels vary widely, offering flexibility for different applications, budgets, and installation environments. Understanding thickness, width, length, and joint types helps distributors, wholesalers, contractors, and designers make informed decisions.

The most common SPC wall panel dimensions include:

• 厚さ： 4–12 mm
• 幅： 150 mm / 180 mm / 300 mm / 400 mm / 600 mm
• 長さ： 2400–3000 mm
• Joint: Seamless, click-lock, or tongue-and-groove

These dimensions are optimized for global export, efficient installation, and excellent decorative performance.