Perforated Aluminum Sheets

What is a Perforated Aluminum Sheet and Panel?

A perforated aluminum sheet and panel is an aluminum sheet with regular or irregular holes processed on its surface using technologies such as CNC punching machines, stamping presses, and laser cutting. In essence, it is a form of metal engineering art that achieves functions like light transmission, ventilation, and sound absorption through precisely designed perforations.

Perforated aluminum panels are widely used across construction, industrial, and decorative sectors — from building façades and suspended ceilings to acoustic barriers and equipment enclosures — thanks to their outstanding strength-to-weight ratio, corrosion resistance, and design flexibility.

Core Characteristics

• Lightweight and High Strength: A solid 3 mm thick aluminum sheet weighs approximately 8.1 kg/㎡; with perforation the actual weight is even lower, reducing structural load significantly. Tensile strength ranges from 100 to 280 N/mm² depending on alloy.
• Weather-Resistant and Fireproof: Fluorocarbon (PVDF) or powder coatings deliver outstanding corrosion resistance, UV stability, and Class A (non-combustible) fire rating.
• Strong Plasticity: Can be processed into flat, curved, folded, corrugated, and other complex shapes to fit any architectural design.
• Light and Air Permeable: Perforations maintain spatial permeability, allowing natural daylight and airflow while providing shade and privacy.
• Acoustic Optimization: When combined with backing sound-absorbing materials (rock wool / glass wool), perforated panels can reduce noise by 15–25 dB.
• Light and Shadow Art: Perforations filter sunlight to create dynamic light-and-shadow effects that change throughout the day.
• 100 % Recyclable: Aluminum is infinitely recyclable, making perforated sheets an environmentally responsible choice.

How Are Perforated Aluminum Sheets Made?

Common perforation methods include CNC punching, stamping, and laser cutting. Each method has distinct advantages depending on volume, precision, and design complexity.

Worthwill primarily uses CNC and combined punching machines for high-volume production and repeating patterns. For custom one-off designs, intricate artwork, or unique shapes, we employ water jet or laser cutting with millimeter-level precision.

What is Perforation Rate?

Perforation rate (also called open area percentage) is the ratio of the total hole area to the total area of the perforated region. It is a core parameter that directly affects a perforated aluminum façade's visual transparency, ventilation efficiency, solar heat gain, and acoustic performance.

The maximum practical perforation rate is approximately 60 %. Exceeding this value compromises the sheet's flatness and structural integrity and may require secondary positioning during processing. Sheets larger than 1500 × 3000 mm at high perforation rates also require additional processing steps.

• Formula: (Total area of holes ÷ Total area of aluminum sheet) × 100 %
• Function: Determines light transmission, ventilation rate, acoustic absorption, and overall visual density.
• Practical Upper Limit: ~60 % (higher rates require secondary positioning and may affect flatness).

What is Hole Diameter?

Hole diameter refers to the diameter (or equivalent dimension) of each perforation. Together with hole spacing (pitch) and arrangement pattern, hole diameter controls the visual clarity, light transmission, and aesthetic character of the panel — smaller diameters create a delicate, textile-like appearance, while larger diameters deliver a bold, open look.

The most popular specification is a 6 mm hole diameter with a 9 mm pitch (center-to-center distance in a 60° staggered pattern), yielding approximately 40 % open area.

• Range: 0.5 mm to 25 mm (micro perforation can go as small as 0.5 mm).
• Impact: Combined with hole spacing and arrangement, controls visual transparency, airflow, acoustic behavior, and structural strength.

Worthwill Specifications and Sizes

Worthwill offers a comprehensive range of perforated aluminum sheets and panels. Below is a summary of our standard capabilities — custom specifications are always welcome.

• Alloys: 1060, 1100, 3003, 5005, 5052, 6061, 6063
• Hole Types: Circular, oval, square, slotted, hexagonal, decorative patterns, custom-shaped holes
• Common Hole Diameters: 1/16 in (1.6 mm), 1/8 in (3.2 mm), 1/4 in (6.35 mm)
• Hole Diameter Ranges: Micro holes (0.5–2.0 mm), standard holes (2.0–10.0 mm), large openings (10.0–25.0 mm)
• Standard Sheet Sizes: 1000 × 2000 mm, 1220 × 2440 mm (4 ft × 8 ft), 1250 × 2500 mm, custom sizes available
• Thickness: 0.2 mm – 10 mm
• Surface Treatments: Polished, brushed, anodized, powder coated, PVDF (fluorocarbon) coated, painted, sandblasted
• Standards: ASTM B209, EN 485, EN 573, JIS H4000, AMS QQ-A-250/2
• Certifications: ISO 9001:2015, SGS, RoHS, REACH, CE, ASTM compliant

Custom perforated patterns and shapes are produced using millimeter-precision CNC, laser, and water-jet machines. Infinite varieties of folded and perforated panel designs can also be achieved to meet the most demanding architectural visions.

Classification of Perforated Aluminum Sheets and Panels

Perforated aluminum products can be classified in multiple ways — by substrate, hole shape, arrangement pattern, thickness, perforation technology, surface treatment, and overall panel geometry. Understanding these classifications helps you select the optimal product for your project.

By Aluminum Substrate

• High-purity aluminum perforated sheets (≥ 99.5 % Al)
• Pure aluminum perforated sheets (1xxx series)
• Alloy aluminum perforated sheets (3xxx, 5xxx, 6xxx series)
• Composite aluminum perforated panels (PE / FR core)
• Clad aluminum perforated sheets

By Hole Shape

• Round Hole Perforated Sheets and Panels
• Oval Perforated Sheets and Panels
• Oblong Hole Perforated Sheets and Panels
• Square Hole Perforated Sheets and Panels
• Rectangular Hole Perforated Sheets and Panels
• Slotted Hole Perforated Sheets and Panels
• Hexagonal Hole Perforated Sheets and Panels
• Diamond Hole Perforated Sheets and Panels
• Triangular Hole Perforated Sheets and Panels
• Cross-shaped Hole Perforated Sheets
• Plum Blossom Hole Perforated Sheets and Panels
• Fish Scale Hole Perforated Sheets and Panels
• Pentagram Hole Perforated Sheets and Panels
• Decorative Pattern Hole Perforated Sheets and Panels
• Custom Shapes Perforated Sheets and Panels

By Hole Arrangement

• 60° Staggered Perforated Sheets and Panels (most common)
• 45° Staggered Perforated Sheets and Panels
• Straight (90°) Perforated Sheets and Panels
• Diagonal Pattern Perforated Sheets and Panels
• Custom / Parametric Patterns Perforated Sheets and Panels

By Sheet Thickness

• Thin Gauge (0.2 mm – 1.5 mm): Interior ceilings, light fixtures, decorative screens
• Medium Gauge (1.5 mm – 3.0 mm): Façade cladding, partitions, signage
• Thick Gauge (3.0 mm – 10.0 mm): Sound barriers, heavy-duty guards, walkway treads

By Perforation Technology

• CNC Punched Perforated Sheets and Panels
• Stamped Perforated Sheets and Panels
• Laser Perforated Sheets and Panels
• Micro-Perforated Sheets and Panels
• Formed (Raised / Embossed) Perforated Sheets and Panels
• Heavy-Duty Perforated Sheets and Panels
• Ultra-Thin Perforated Sheets and Panels
• Wire-Cut (EDM) Perforated Sheets and Panels

By Surface Treatment

• Anodized Perforated Sheets and Panels
• Powder Coated Perforated Sheets and Panels
• PVDF (Fluorocarbon) Coated Perforated Sheets and Panels
• Painted / Baked Enamel Perforated Sheets and Panels
• Brushed Perforated Sheets and Panels
• Polished / Mirror Perforated Sheets and Panels
• Embossed Perforated Sheets and Panels
• Wood Grain Transfer Printed Perforated Sheets and Panels
• Mill Finish Perforated Sheets and Panels

By Panel Geometry

Flat Perforated Aluminum Sheets and Panels

Flat perforated sheets feature holes on a single plane, providing a clean, uniform surface. Their flat geometry allows free arrangement of holes — including complex patterns and gradients — making them ideal for patterned façade designs. This is the most common form of perforated aluminum panel.

• Flat surface allows free arrangement of holes, ideal for patterned and gradient designs
• Visually transparent, does not block side vision, enhancing building integrity
• Easy to install with standard clip or bracket systems

Folded Perforated Sheets and Panels

Folded perforated panels use strategic bends and folds to increase structural rigidity, reduce the need for substructure, and create striking three-dimensional architectural effects.

• Folding increases effective structural thickness, greatly enhancing strength and rigidity
• Reduces the number of vertical keels, seam connections, and supporting structures — saving material and labor costs
• Available in concave-convex and zigzag profiles, with adjustable depth and angle

Wavy Perforated Aluminum Sheets and Panels

Wavy perforated panels are formed by arc bending on the basis of folded sheets, producing a flowing, undulating surface. This design retains the structural advantages of folded panels while delivering softer, more organic visual effects.

• Arc bending creates a flowing, softened surface contour
• Produces a hazy, semi-transparent atmosphere with rich, shifting light-and-shadow patterns
• Softened contours blend naturally with surrounding architecture and landscape
• Bending increases structural depth, delivering high strength with fewer supporting keels

Price of Perforated Aluminum Sheets

The price of perforated aluminum sheets is influenced by several key factors:

• Aluminum ingot price: As a commodity, the base aluminum ingot price fluctuates with global markets and directly affects sheet cost.
• Alloy grade: Higher-performance alloys (e.g., 5052, 6061) cost more than pure aluminum (1060, 1100).
• Sheet thickness: Thicker sheets require more raw material and thus cost more per square meter.
• Perforation complexity: Custom patterns, very small holes, or high perforation rates require more tooling time and precision, increasing processing costs.
• Surface treatment: Advanced finishes such as PVDF coating or anodizing add to the final price.
• Order quantity: Larger volumes benefit from economies of scale and lower per-unit pricing.

Contact Worthwill for a detailed quotation tailored to your specific requirements.

Typical Applications of Perforated Aluminum Sheets

Perforated Aluminum Panels for Building Façades

Perforated aluminum façade panels are made from pure aluminum or aluminum alloys through precision punching. With diverse hole types, a wide range of thicknesses, excellent light and air permeability, and outstanding durability, they have become one of the most popular choices for modern curtain wall systems.

• Common hole types: Round, square, rectangular, diamond, hexagonal, triangular, slotted, and custom pattern holes
• Common alloys: 1060, 1100, 3003
• Thickness: 0.2 mm to 10 mm; the typical range for curtain walls is 1.5 mm to 6.0 mm
• Flexible design: The overall façade effect can be fine-tuned by adjusting hole pattern, arrangement, and density
• Surface treatments: PVDF (fluorocarbon) spraying, powder coating, anodizing, wood grain transfer printing, etc.

Perforated Aluminum Sheets and Panels for Ceilings

Perforated aluminum ceiling panels are widely used in commercial, institutional, and residential interiors. They combine acoustic control, aesthetic versatility, and practical performance in a lightweight, low-maintenance material.

• Common hole types: Round, square, rectangular, diamond, hexagonal, slotted, and custom pattern holes
• Common alloys: 1100 / 1060 (pure aluminum), 3003 (Al-Mn alloy), 5005 (Al-Mg alloy)
• Common thickness: 0.5 mm – 3 mm
• Standard panel sizes: 300 × 300 mm, 300 × 600 mm, 600 × 600 mm, 600 × 1200 mm (custom sizes available)
• Surface treatments: Powder coating, PVDF spraying, baked enamel, wood grain transfer, anodizing, etc.

Perforated Aluminum Sheets for Sound Barriers

Perforated aluminum sound barrier panels are engineered for highway, railway, and industrial noise control. They achieve efficient noise reduction through precise hole design combined with sound-absorbing backing structures.

• Acoustically optimized structure: Perforated face + back cavity with sound-absorbing infill (rock wool / glass wool), achieving noise reduction of 15–25 dB
• Structural strength: 3–6 mm thick aluminum substrate with a tensile strength of 100–280 N/mm²
• Environmental durability: PVDF coating resists acid, alkali, and UV degradation; Class A fire rating; moisture-resistant
• Flexible acoustic tuning: Hole diameters of 0.5–25 mm allow precise control of sound wave transmittance
• Design options: Supports gradient, patterned, and custom hole arrangements

Perforated Aluminum Sheets for Interior Decoration

Perforated aluminum panels for interior use are lightweight, fireproof, and fully customizable multi-functional materials. Through precise hole design they deliver light transmission, sound absorption, and artistic expression, and are widely used for ceilings, partitions, feature walls, and art installations in modern spaces.

• Lightweight and light-transmitting: 1–3 mm thin sheets (only 2.7–8.1 kg/㎡ before perforation) reduce structural load, with adjustable light transmittance of 5 %–60 % through hole design
• Acoustic optimization: Combined with backing sound-absorbing cotton (rock wool, glass fiber), effectively reduces indoor reverberation and improves space comfort
• Environmental adaptability: Class A fire resistance, moisture and corrosion resistance, suitable for high-humidity environments such as bathrooms, swimming pools, and kitchens
• Customizable design: Supports parametric perforation (hole diameter 0.5–25 mm, perforation rate 5 %–60 %) to achieve gradient, image, and patterned effects

Perforated Aluminum Sheets for Industrial Equipment

In industrial settings, perforated aluminum sheets serve as machine guards, ventilation panels, filter screens, and equipment enclosures. They meet the four core needs of physical protection, efficient heat dissipation, noise control, and operational safety.

• Tensile strength: 100–280 N/mm², resistant to equipment vibration and impact
• Anti-corrosion coatings: PVDF or powder coatings resist acid mist, oil, and chemical exposure
• Temperature resistance: Aluminum substrate withstands continuous operating temperatures up to 150 °C; coating systems are selected to match application requirements
• Safety rated: Class A fire resistance, no rust in humid environments, compliant with industrial safety standards

Hot-Selling Sizes of Perforated Aluminum Sheets

The table below lists our most popular perforated aluminum sheet specifications. All dimensions refer to center-to-center pitch. Custom sizes, hole patterns, and open area percentages are available upon request.

Note: Open area percentages are calculated based on the specified arrangement pattern. Actual open area may vary slightly depending on sheet edge margins. Contact us for specifications not listed above.

Why Choose Worthwill for Perforated Aluminum Sheets?

• Extensive Mold Library: Over a dozen standard perforation molds in stock, enabling fast turnaround for common patterns.
• Full Customization: CNC, laser, and water-jet capabilities allow us to produce any hole shape, size, spacing, and arrangement — including image-based and parametric designs.
• Alloy Expertise: We work with a complete range of aluminum alloys (1xxx through 6xxx series) and can recommend the optimal grade for your application.
• Integrated Surface Finishing: In-house anodizing, powder coating, PVDF spraying, and wood-grain transfer ensure consistent quality and shorter lead times.
• Quality Assured: ISO 9001:2015 certified, with SGS, RoHS, REACH, and CE compliance. Every batch undergoes dimensional inspection and surface quality checks.
• Global Supply: Experienced in exporting to North America, Europe, the Middle East, Southeast Asia, and beyond, with professional packaging and logistics support.

Frequently Asked Questions (FAQ)

What is the minimum order quantity (MOQ) for perforated aluminum sheets?

For standard specifications from our mold library, MOQ is typically 200–500 sheets depending on size. For fully custom patterns, MOQ may vary — please contact our sales team for details.

What aluminum alloy is best for perforated façade panels?

For building façades, 3003 aluminum alloy is the most popular choice due to its excellent formability, moderate strength, and corrosion resistance. For coastal or high-corrosion environments, 5052 is recommended for its superior salt-spray resistance.

Can you produce perforated sheets with custom images or logos?

Yes. Using CNC punching or laser cutting, we can convert any vector image, logo, or architectural pattern into a perforated design with millimeter-level precision. Please provide a high-resolution vector file (AI, DWG, or DXF format) for quoting.

What is the maximum size of a single perforated aluminum panel?

Our standard maximum sheet size is 1500 × 4000 mm. Larger panels can be produced with secondary positioning, though dimensional tolerances and flatness should be discussed for sheets exceeding 1500 × 3000 mm.

How does perforation rate affect structural strength?

Higher perforation rates reduce the material cross-section and therefore lower structural stiffness and load-bearing capacity. As a general guideline, sheets with perforation rates above 40 % should use thicker gauges or reinforcing folds to maintain adequate rigidity. Our engineering team can advise on the optimal balance for your application.

What surface treatment is recommended for outdoor use?

For exterior applications, we recommend PVDF (fluorocarbon) coating — it provides exceptional UV resistance, color retention, and weather durability with a service life of 20+ years. For projects requiring a natural metallic look, anodizing is another excellent outdoor option.