22mm tempered glass, 22mm toughened glass, 22mm glass for extreme loads, 22mm jumbo tempered glass, 7/8 inch tempered glass

7/8" Extreme Structural & Security Grade Safety Glass for Critical Infrastructure, Deep Aquariums & High-Level Ballistic Protection

💡 22mm is the "extreme structural" thickness​ — the perfect middle ground between 19mm (ultra-heavy) and 25mm (military/nuclear). It offers approximately 20× the bending stiffness of 8mm glass​ while being more achievable in furnace size and more cost-effective than 25mm. Specified for deep aquarium windows (up to 8m depth), extreme-load glass floors, high-level ballistic laminates, and critical infrastructure where failure is not an option.

📌 What Is 22mm Tempered Glass?

22mm Tempered Glass​ — also known as 22mm Toughened Glass​ or 7/8 Inch Tempered Glass​ — is an extreme structural safety glass produced by controlled thermal treatment. Quality 22mm float glass is heated to approximately 640-670℃ and then rapidly cooled with high-pressure, uniformly distributed air jets (rapid quenching). This creates a powerful surface compressive stress layer (≥ 110 MPa for fully tempered) while the interior retains compensating tensile stress, delivering 4 to 5 times higher impact and bending strength​ than ordinary annealed glass.

22mm's unique positioning is: "the thickness that says 'no compromise.'"​ It sits between 19mm (ultra-heavy) and 25mm (military/nuclear). While 19mm is excellent for most landmark structural applications, 22mm provides the extra margin for projects where safety factors must exceed 5×, where hydrostatic pressures are extreme, or where ballistic threats include high-velocity rifles. Its weight (~55 kg/㎡) and stiffness (~20× that of 8mm) place it in a class reserved for the most demanding architectural and security challenges.

📸 (Suggested images: 22mm deep aquarium window / extreme-load glass floor under construction / ballistic test on 22mm laminate / 22mm vs 19mm thickness comparison / structural glass fin with 22mm)

⚖️ How 22mm Differs from Other Thicknesses

✅⭐ = First-choice | ✅ = Suitable | △ = Usable but not optimal | ❌ = Not recommended

📊 Technical Specifications

Complete 22mm Tempered Glass Data Sheet

⚖️ 22mm Tempered Glass Weight

This is one of the most-searched long-tail queries from procurement managers. The unit weight of 22mm glass is approximately:

55 kg/㎡

💡 22mm is 56% heavier than 15mm and 138% heavier than 12mm, but delivers approximately 20× the bending stiffness of 8mm. Every 22mm panel requires engineered lifting solutions, reinforced substructures, and specialized handling protocols. We provide detailed weight and rigging documentation with every quotation.

📐 Jumbo 22mm Tempered Glass

Maximum Size: Typically 2440 × 6000 mm, subject to furnace capability. Producing 22mm jumbo panels requires:

• •Extended heating cycles (slow belt speed)
• •High-capacity quench with uniform airflow
• •Precision temperature profiling across the entire furnace zone
• •Flatness tolerance ≤ 0.10mm/m
• Our horizontal tempering furnace with multi-zone PID control and adaptive quench​ is calibrated for 22mm production. Due to the extreme weight and limited furnace capacity, 22mm jumbo panels are manufactured on a project-by-project basis with strict quality gates.

Typical 22mm Project Parameters

🏗️ Available Processing

⚠️ The "non-cuttable" nature of tempered glass means all fabrication must be completed before tempering. For 22mm glass, processing requires industrial-scale machinery and extended cycle times.

Cutting

• •CNC precision cutting, dimensional tolerance ± 0.1mm
• •Heavy-duty waterjet or diamond saw cutting table
• •Shape cutting limited to simple geometries

Edge Processing

• •Flat Polished Edge​ — standard for structural glazing
• •Arrissed Edge​ — for concealed mounting
• •Beveled Edge​ — limited availability (high chipping risk)
• •Edge precision 0.01mm; 22mm requires extended grinding cycles

Holes & Cut-outs

• •Round holes, counter-sunk holes (max depth 11mm)
• •Structural bolt holes for spider fittings
• •Hole edge distance ≥ 2× glass thickness (≥ 44mm)
• •Slotting capability very limited

Surface Processing

• •Ceramic Digital Printing — simple patterns only
• •Screen Printing — available
• •Acid Etching / Frosted — available
• •Low-E coating, Reflective coating — available

Structural Composite Processing

• •Laminated Glass​ (PVB / SGP) — mandatory for all structural and security applications
• •Insulated Glass Unit​ (IGU) — for energy-efficient critical façades
• •Heat Soak Test​ (EN 14179) — mandatory for all 22mm orders
• •Bullet-Resistant Laminate​ — tested to UL 752 / EN 1063 / STANAG 4569

🏢 Applications (22mm's Unique Focus)

Per the principle that each thickness page must have its own Search Intent + Application Intent + Procurement Intent, 22mm's unique positioning is "Extreme Structural & Security Grade — the thickness that says 'no compromise' for critical projects."

🔹 Deep Aquarium & Oceanarium Windows ⭐ 22mm's #1 Application

For aquarium exhibits at depths of 6-8 meters, 22mm tempered glass laminated with SGP provides the necessary hydrostatic pressure resistance with a safety factor of 5× or higher. The typical construction is 22mm+SGP+22mm (total 47mm) or 22mm+SGP+19mm.

• •Design Pressure: Up to 120 kPa (equivalent to ~12m water head)
• •Optical Clarity: Low-Iron essential to minimize green tint at such thickness
• •Certification: DIN 1076 / ASME PVHO-1
• 📸 (Suggested images: 22mm deep aquarium window / oceanarium tunnel / 22mm vs 19mm laminate comparison)

🔹 Extreme-Load Glass Floors (Public & Commercial)

For glass floors supporting heavy pedestrian traffic, exhibition displays, or occasional light vehicle access, 22mm laminated with SGP provides the highest load rating available before moving to 25mm.

• •Typical Assembly: 22mm+SGP+19mm or 22mm+SGP+22mm
• •Uniform Load Capacity: Up to 12 kN/㎡ (with appropriate framing)
• •Slip Resistance: Acid-etched surface or ceramic frit

🔹 High-Level Ballistic Glazing (UL 752 Level 4-6)

22mm tempered glass is a key component in multi-ply ballistic laminates​ capable of stopping multiple rounds from assault rifles (AK-47, M16) and armor-piercing ammunition.

• •Laminate Construction: 22mm tempered + SGP + 6mm annealed + PC spall shield + 6mm annealed
• •Testing Standard: UL 752 / EN 1063 BR6-NS / STANAG 4569 Level 2-3
• •Applications: Embassies, military checkpoints, VIP armored vehicles (as stationary glazing)

🔹 Critical Infrastructure Façades

Power plants, data centers, government command centers, and financial institutions require glazing that resists forced entry, blast, and ballistic attack simultaneously. 22mm tempered glass in laminated form provides the baseline for such multi-threat resistance.

🔹 Nuclear & Research Facility Windows

For hot cells, containment areas, and observation windows in nuclear and high-energy physics facilities, 22mm tempered glass (often combined with lead-doped glass or acrylic) provides radiation shielding and structural integrity.

🔹 Sub-Aquatic Tunnels & Observation Pods

For underwater walkways and observation pods at depths of 3-6m, 22mm laminated tempered glass offers the best balance of strength, weight, and cost compared to 25mm.

22mm Application Quick Reference

✅⭐ = First-choice | ✅ = Suitable | △ = Usable but not optimal | ❌ = Not recommended

📜 Standards & Quality Control

Only list certifications you actually hold. Do not inflate for SEO.

• •EN 12150-1​ — Tempered glass product standard (CE Marking)
• •EN 14449​ — Laminated glass (if composite)
• •EN 1279​ — Insulating glass (if composite)
• •EN 12600​ — Pendulum impact test (Class 1/2/3)
• •EN 1063​ — Bullet resistance (if applicable)
• •UL 752​ — US bullet-resisting equipment standard (if applicable)
• •ASTM C1048​ — US tempered glass standard
• •ASTM C1172​ — US laminated glass standard
• •ANSI Z97.1​ — American safety glass standard
• •AS/NZS 2208​ — AU/NZ safety glass standard
• •BS EN 12150​ — UK Kitemark standard
• •CCC​ — China Compulsory Certification
• •ISO 9001​ — Quality Management System

Quality Control Process

📄 Test reports available upon request.​ We provide real fragmentation test photos, stress test reports, HST temperature curves, and ballistic test certificates (where applicable) for your verification.

💰 22mm Tempered Glass Price

Glass pricing is heavily influenced by size, quantity, substrate, Low-E, Low-Iron, processing, drilling, packing, port, Incoterms, and destination. A single fixed price is misleading.

Indicative FOB Price

USD 190 - 310 / ㎡​ (50 ㎡ MOQ, Clear 22mm, standard edgework, HST included)

Price Comparison Across Thicknesses

Price Factors

💡 Send us your project drawings and we will provide a precise quotation within 3-5 business days. Due to the complexity of 22mm projects, a technical consultation is usually required.

📦 Packaging & Shipping

• •Packing Method: Custom-engineered heavy-duty plywood crates with internal bracing, steel strapping, foam edge protection, cork spacers, vertical loading, integrated spreader bars and crane lifting points
• •Sea Freight Breakage Rate: < 1% (with proper handling)
• •22mm per-crate capacity: ~4-10 ㎡/crate (each crate may weigh 500-2000 kg)
• •Container Types: 20GP / 40GP / 40HQ — open-top or flat-rack for oversized panels
• •Ports of Loading: Qingdao / Shanghai / Shenzhen
• •Key Destination Ports: Dubai, Riyadh, Doha, London, Sydney, Los Angeles, Rotterdam, Singapore, New York, Tokyo
• •Lead Time: 45-65 days standard; longer for ballistic or underwater laminates
• 📸 (Suggested images: custom heavy-duty crate with crane lifting points / forklift handling 22mm crate / container loading with spreader bar / cargo securing plan for heavy panels)

🏭 Manufacturing Capability

• •✅ 20+ years​ of tempered glass manufacturing
• •✅ Daily capacity 5000 ㎡
• •✅ Horizontal tempering furnace capable of 22mm × 20000mm​ (confirm current max size)
• •✅ CNC robotic polishing for heavy glass
• •✅ In-house SGP/PVB lamination line for thick glass
• •✅ Ballistic testing facility (or partnership with certified lab)
• •✅ Edge precision 0.01mm
• •✅ All processes completed in-house — no outsourcing
• •✅ Third-party SGS / CE / UL test reports
• •✅ Real production photos & videos available on request
• 📸 (Suggested images: factory overview / 22mm furnace / SGP lamination line / ballistic test range / heavy-duty crate loading with crane)

❓ FAQ

Q1: What is the difference between 22mm and 19mm tempered glass? Which should I choose?

A:

• •Choose 19mm: Ultra-heavy structural for landmark façades, standard underwater viewing (≤ 6m depth), UL 752 Level 3-4 ballistic, glass floors up to 7.5 kN/㎡ — when you need excellent strength at a more accessible price
• •Choose 22mm: Deep aquarium windows (6-8m depth), extreme-load glass floors (up to 12 kN/㎡), UL 752 Level 4-6 ballistic, nuclear facility windows, critical infrastructure — when safety factors must exceed 5× and failure is absolutely unacceptable
• •Simple rule: If the project involves human life safety at extreme conditions (deep water, high ballistic threat, heavy public traffic), choose 22mm.

Q2: Can 22mm tempered glass stop rifle rounds?

A: Not alone.​ Monolithic 22mm tempered glass will shatter under high-velocity rifle impact. However, when laminated with multiple plies of glass and polycarbonate using SGP interlayers, the assembly can achieve UL 752 Level 4-6 (stopping AK-47, M16, and armor-piercing rounds). The 22mm tempered component provides the primary structural strength; the laminate layers absorb and disperse the projectile's energy.

Q3: What is the weight of 22mm tempered glass?

A: 22mm glass weighs approximately 55 kg/㎡. A 1.7m × 3.4m panel (5.78 ㎡) weighs about 318 kg. This requires mechanical lifting equipment (crane or hoist) for installation. We provide detailed weight and handling documentation with every quotation.

Q4: What is the maximum size of 22mm tempered glass?

A: Typically 2440 × 6000 mm, but this depends on the specific tempering furnace. Not all factories can produce 22mm jumbo panels. Please confirm with our team before specifying. Smaller sizes (≤ 3960 × 2640 mm) are more readily available.

Q5: Is Heat Soak Test (HST) necessary for 22mm tempered glass?

A: Absolutely mandatory — non-negotiable.​ A spontaneous breakage in a 22mm panel weighing over 300 kg could cause catastrophic damage, injury, or death. HST (EN 14179) reduces the field breakage rate from 0.3% to < 0.1%. We include HST as standard for all 22mm orders — no exceptions.

Q6: Can 22mm tempered glass be used for deep aquarium windows?

A: Yes — and it is the preferred thickness for aquarium exhibits at 6-8 meters water depth. The typical construction is 22mm tempered + SGP + 22mm tempered (total 47mm), designed to withstand hydrostatic pressure with a safety factor of 5×. Deeper exhibits (8-12m) may require 25mm laminates.

Q7: What is the light transmittance of 22mm tempered glass?

A: Clear 22mm tempered glass offers ≥ 84% light transmittance; with an Ultra-Clear (Low-Iron) substrate, transmittance reaches ≥ 87%. The green edge tint is significant at 22mm thickness — Low-Iron is strongly recommended​ for aquariums, showrooms, and any application where color fidelity matters.

Q8: Can 22mm tempered glass be laminated or assembled into an IGU?

A: Yes — and lamination is mandatory for all structural and security applications. 22mm+SGP+22mm is the standard for deep aquarium windows and extreme-load floors. IGU with 22mm outer lite is possible but requires careful thermal stress analysis and is rarely specified due to weight constraints.

Q9: What is the MOQ and lead time for 22mm tempered glass?

A: Standard MOQ is 30 ㎡ (approximately 2-4 crates, depending on panel size). Lead time is 45-65 days standard; longer for ballistic or underwater laminates (may require third-party testing). Please send your drawings for a precise quotation.

Q10: How do I specify 22mm tempered glass for my project?

A: Due to the extreme complexity and cost of 22mm projects, a technical consultation is mandatory. Please provide:

1. 1.Panel dimensions (width × height × quantity)
2. 2.Application (aquarium, floor, ballistic, nuclear, etc.)
3. 3.Design loads (hydrostatic pressure, live load, ballistic level, blast overpressure)
4. 4.Glass type (Clear / Ultra-Clear / Tinted)
5. 5.Lamination requirement (PVB or SGP, number of plies, total thickness)
6. 6.IGU requirement (if any)
7. 7.HST requirement (mandatory — included by default)
8. 8.Certification requirement (EN / ASTM / UL / AS-NZS)
9. 9.Target delivery date
10. 10.Shop drawing or CAD file​ (preferred)

🔗 Related Products

• •🔹 6mm Tempered Glass​ – Everyday safety glass for windows & doors
• •🔹 8mm Tempered Glass​ – The sweet spot for balustrades
• •🔹 Laminated Glass (PVB / SGP)​ – Safety glass for overhead applications
• •🔹 Insulated Glass Unit (IGU)​ – Energy-saving double glazing
• •🔹 Low-E Glass​ – Building energy efficiency
• •🔹 Heat Soaked Glass​ – Spontaneous breakage rate < 0.1%
• •🔹 Ultra Clear Tempered Glass​ – Crystal clarity for display cases
• •🔹 Curved Tempered Glass​ – Curved tempering for architectural features

📦 Tempered Glass Product List

     Browse our tempered glass series:

1. .5mm Tempered Glass for Small Showers, Splashbacks & Furniture​ – Ultra-light & budget-friendly ★ This page
2. .6mm Tempered Glass for Windows, Doors & Canopies​ – Everyday safety glass ★ This page
3. .8mm Jumbo Tempered Glass for Frameless Balustrades​ – Frameless balustrade specialist
4. 10mm Tempered Glass for Premium Balustrades & Partitions​ – Premium confidence choice
5. 12mm Tempered Glass for Floors & Balustrades​ – Structural grade
6. .15mm Jumbo Tempered Glass for Grand Hotel Lobbies​ – Heavy-duty structural

7 .19mm Ultra-Clear Structural Tempered Glass​ – Ultra-heavy structural

8. 22mm Tempered Glass for Extreme Loads​ – Extreme structural

9. 25mm Jumbo Tempered Glass for Heavy Loads​ – Military / nuclear grade

10. Heat Soaked Tempered Glass (5mm-25mm)​ – HST certified supplier

🏆 Why Choose Us?

• •✅ 20+ years​ of tempered glass manufacturing, daily capacity 5000 ㎡
• •✅ Capable of 22mm × 6000mm​ jumbo panels (confirm current max size)
• •✅ Full certification: EN 12150, CE, ASTM C1048, AS/NZS 2208, CCC, ISO 9001
• •✅ In-house SGP/PVB lamination line for thick glass — one-stop structural composite processing
• •✅ HST mandatory​ for all 22mm orders — spontaneous breakage rate < 0.1%
• •✅ Custom heavy-duty crates with integrated spreader bars and crane lifting points — sea freight breakage < 1%
• •✅ 45-65 day lead time, MOQ from 30 ㎡
• •✅ Free TDS, test reports, and physical samples
• •✅ Worldwide shipping: Guangzhou / Shenzhen major ports

🎯 Request a Quote for 22mm Tempered Glass

Please provide the following information to receive a quotation:

📧 Upload your drawings for a precise quote: tomron1688@gmail.com
🌐 Website: www.jumbotemperedglass.com