How Much Glass Fits in a 20GP / 40HQ Container? Loading Guide for Importers

How many m² of tempered, laminated or insulated glass fit in a 20GP or 40HQ container? Weight limits, crate sizes, mixed loading tips and a real loading example from Clariglass export practice.

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How Much Glass Fits in a 20GP / 40HQ Container? A Practical Loading Guide
Glass is sold by the m² but shipped by weight and crate volume. Knowing container limits helps you plan orders and avoid surprise freight costs.
The Weight Rule
Glass weighs about 2.5 kg per m² per mm of thickness. A 10mm tempered panel weighs 25 kg/m².
20GP container: max payload 24-25 tons of glass (≈ 950-1000 m² of 10mm tempered glass). 40HQ container: up to 26 tons with proper racking (larger volume, often used for thinner glass or mixed orders).
Always confirm the actual payload limit with your freight forwarder — road transport limits at destination may be lower.
Crate Basics
Standard crates: 2134 x 610 mm or custom sizes. Sheets are packed vertically on A-frames or in crates with cork/foam separation between panes.Mixed Loading Is Welcome
You can combine tempered, laminated, insulated and mirror glass in one container. Tips: Put heavier/thicker glass toward the bottom of the loading plan Keep insulated units upright — never flat Separate polished/mirror faces with foam Request a loading plan and photos before the container is sealed
Real Loading Example (Clariglass export, 20GP)
9mm tempered glass shower panels: 400 m² = 9 tons 6.38mm laminated glass: 250 m² = 4.2 tons 12mm tempered table tops: 150 m² = 4.5 tons Mirror glass 5mm: 200 m² = 2.5 tons Total ≈ 20.2 tons — fits a 20GP with dunnage space.
Documents You Receive
Packing list with crate numbers and sheet sizes Loading photos and video Commercial invoice for customs
Questions about your loading plan? WhatsApp Clariglass at +86 182 3359 3143 or email alicexu189@gmail.com — we plan every container to maximize safety and fill rate.

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