Jay · Oct 22, 2025 · 10 min read
#cbm
#container
#40hc
#sheet-size
#europe
On this page
- 📐 Why 1250×2500mm Has Its Own CBM Figures
- 🔧 The CBM Formula for 1250×2500mm Plywood
- 📊 CBM Lookup Table — 1250×2500mm by Thickness
- 📦 40HC Container Totals — 1250×2500mm Sheets by Core Species
- 🔍 Worked Example: 18mm Styrax Core, 1250×2500mm
- 🔍 Worked Example: 12mm Acacia Core, 1250×2500mm
- 📋 Quick-Reference: 1250×2500mm vs. 1220×2440mm Comparison
- 📐 Calculating CBM for Custom Thicknesses
- 🚢 Why EU Buyers Choose 1250×2500mm — And What It Means for Logistics
- ✅ Summary: 1250×2500mm Plywood CBM Calculator
On this page
- 📐 Why 1250×2500mm Has Its Own CBM Figures
- 🔧 The CBM Formula for 1250×2500mm Plywood
- 📊 CBM Lookup Table — 1250×2500mm by Thickness
- 📦 40HC Container Totals — 1250×2500mm Sheets by Core Species
- 🔍 Worked Example: 18mm Styrax Core, 1250×2500mm
- 🔍 Worked Example: 12mm Acacia Core, 1250×2500mm
- 📋 Quick-Reference: 1250×2500mm vs. 1220×2440mm Comparison
- 📐 Calculating CBM for Custom Thicknesses
- 🚢 Why EU Buyers Choose 1250×2500mm — And What It Means for Logistics
- ✅ Summary: 1250×2500mm Plywood CBM Calculator
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CBM calculator for 1250×2500mm plywood: lookup tables by thickness, 40HC totals by core species, and worked examples for EU-metric sheets. Updated 2026.
European buyers ordering plywood from Vietnam almost always specify 1250×2500mm — the metric sheet size that matches continental European construction and furniture standards. Yet nearly every CBM calculator online is built around the 4×8ft (1220×2440mm) format.
This article provides a dedicated plywood CBM calculator for 1250×2500mm sheets: lookup tables by thickness, 40HC container totals by core species, and step-by-step worked examples. All figures come from Mika Plywood factory packing data (2026) — the same numbers used in actual export packing lists.
📐 Why 1250×2500mm Has Its Own CBM Figures
The 1250×2500mm sheet is 4.97% larger by area than the 1220×2440mm standard:
| Sheet Size | Length (m) | Width (m) | Area (m²) | vs. Standard |
|---|---|---|---|---|
| 1220 × 2440mm | 1.22 | 2.44 | 2.9768 | Baseline |
| 1250 × 2500mm | 1.25 | 2.50 | 3.125 | +4.97% |
That 5% area difference compounds across every calculation in a container order:
- Each sheet consumes 5% more CBM at the same thickness
- Fewer sheets fit per CBM (17.78 vs. 18.66 at 18mm)
- Total container CBM increases by approximately 5% for the same pallet count
This is why you cannot use a 1220×2440mm CBM table to quote a 1250×2500mm order — the figures will be systematically off by nearly 5% on every line.
⚠️ Important: Using 4×8ft CBM values for metric sheet quotes creates a 5% error that compounds into significant discrepancies on multi-container orders. Always apply size-specific formulas. (Mika Plywood production data, 2026)
🔧 The CBM Formula for 1250×2500mm Plywood
CBM per sheet = 1.25 × 2.50 × Thickness(m)
= 3.125 × Thickness(m)Thickness is quoted in millimetres by factories — divide by 1,000 before applying.
Example at 18mm:
CBM/sheet = 3.125 × (18 ÷ 1000)
= 3.125 × 0.018
= 0.05625 CBMSheets per CBM at 18mm:
Sheets/CBM = 1 ÷ 0.05625 = 17.78 sheetsSheets per pallet uses the same formula as any sheet size — pallet height governs:
Sheets/pallet = ROUNDDOWN(1000 ÷ Thickness_mm)At 18mm: ROUNDDOWN(1000 ÷ 18) = 55 sheets per pallet. Pallet height is fixed at 1,000mm across all sheet formats. (Mika Plywood factory packing standard, 2026)
📊 CBM Lookup Table — 1250×2500mm by Thickness
All figures calculated from the formula above. CBM/pallet = CBM/sheet × Sheets/pallet.
| Thickness (mm) | CBM/Sheet | Sheets/CBM | Sheets/Pallet (1000mm) | CBM/Pallet |
|---|---|---|---|---|
| 3 | 0.00938 | 106.6 | 333 | 3.124 |
| 5 | 0.01563 | 64.0 | 200 | 3.126 |
| 9 | 0.02813 | 35.5 | 111 | 3.122 |
| 12 | 0.03750 | 26.7 | 83 | 3.113 |
| 15 | 0.04688 | 21.3 | 66 | 3.094 |
| 18 | 0.05625 | 17.8 | 55 | 3.094 |
| 21 | 0.06563 | 15.2 | 47 | 3.084 |
| 25 | 0.07813 | 12.8 | 40 | 3.125 |
| 30 | 0.09375 | 10.7 | 33 | 3.094 |
💡 Key Insight: CBM per pallet stays consistent at roughly 3.09–3.13 CBM regardless of thickness. This is because thicker sheets have fewer sheets per pallet, but each sheet is larger — the two effects largely cancel out. For 1220×2440mm sheets, the equivalent figure is approximately 2.95–2.98 CBM per pallet.
📦 40HC Container Totals — 1250×2500mm Sheets by Core Species
Container pallet count is determined by the 28.5 MT payload ceiling, not available floor space. Denser core species hit the weight limit at fewer pallets. The pallet height limit guide for 40HC containers explains the engineering behind stack height constraints.
For 1250×2500mm sheets, pallet count per 40HC follows the same weight-ceiling logic as 1220×2440mm, but stack heights differ by core species: styrax=1000mm, acacia=970mm, eucalyptus=900mm. This affects sheets per pallet and total CBM.
| Core Species | Density (kg/CBM) | Stack (mm) | Sht/Pallet | Pallets/40HC | Approx. CBM/40HC | Approx. Weight/40HC |
|---|---|---|---|---|---|---|
| Styrax | ~500 | 1000 | 55 | 18 | ~55.7 CBM | ~27.8 MT |
| Acacia | ~580 | 970 | 53 | 16 | ~47.7 CBM | ~27.7 MT |
| Eucalyptus | ~650 | 900 | 50 | 15 | ~42.2 CBM | ~27.4 MT |
💡 Key difference from 1220×2440mm: Stack heights for 1250×2500mm are species-specific: styrax=1000mm, acacia=970mm, eucalyptus=900mm. Sheets per pallet at 18mm: styrax=ROUNDDOWN(1000÷18)=55, acacia=ROUNDDOWN(970÷18)=53, eucalyptus=ROUNDDOWN(900÷18)=50. All three species load safely within the 28.5 MT payload limit. (Mika Plywood production data, 2026)
For the equivalent 1220×2440mm container totals, see the plywood container packing calculation guide — the P0 reference article with full packing tables for all core species and thicknesses.
🔍 Worked Example: 18mm Styrax Core, 1250×2500mm
An EU furniture importer orders 18mm birch-face / styrax core plywood in 1250×2500mm sheets for a full 40HC container. Styrax core = 18 pallets per 40HC at ~500 kg/CBM.
Step 1: Sheets per pallet
Sheets/pallet = ROUNDDOWN(1000 ÷ 18) = 55 sheetsStep 2: Total sheets in container
Total sheets = 55 × 18 = 990 sheetsStep 3: CBM per sheet
CBM/sheet = 1.25 × 2.50 × 0.018 = 0.05625 CBMStep 4: Total CBM
Total CBM = 990 × 0.05625 = 55.69 CBMStep 5: Weight check
Weight = 55.69 CBM × 500 kg/CBM ÷ 1,000 = 27.8 MT27.8 MT is below the 28.5 MT payload ceiling — the container loads safely. The styrax core’s low density (480–500 kg/CBM) makes it the preferred choice for maximising CBM when weight is a constraint, particularly relevant for 1250×2500mm sheets that carry more volume per pallet.
“European buyers ordering 1250×2500mm frequently underestimate total CBM by 5% when they use 4×8ft reference data. We catch this at the packing list stage and recalculate before loading.” — Jay, International Sales Manager, Mika Plywood
🔍 Worked Example: 12mm Acacia Core, 1250×2500mm
A packaging buyer orders 12mm commercial plywood in 1250×2500mm sheets. Acacia core = 16 pallets per 40HC at ~580 kg/CBM.
Step 1: Sheets per pallet
Sheets/pallet = ROUNDDOWN(1000 ÷ 12) = 83 sheetsStep 2: Total sheets in container
Total sheets = 83 × 16 = 1,328 sheetsStep 3: CBM per sheet
CBM/sheet = 1.25 × 2.50 × 0.012 = 0.03750 CBMStep 4: Total CBM
Total CBM = 1,328 × 0.03750 = 49.80 CBMStep 5: Weight check
Weight = 49.80 CBM × 580 kg/CBM ÷ 1,000 = 28.88 MT28.88 MT exceeds the 28.5 MT payload ceiling. Reduce to 15 pallets:
Total sheets (15 pallets) = 83 × 15 = 1,245 sheets
Total CBM = 1,245 × 0.03750 = 46.69 CBM
Weight = 46.69 × 580 ÷ 1,000 = 27.08 MT ✓This example shows why 1250×2500mm sheets require explicit weight verification for acacia and eucalyptus core — the larger sheet area pushes weight totals closer to the payload ceiling than the equivalent 1220×2440mm order.
📋 Quick-Reference: 1250×2500mm vs. 1220×2440mm Comparison
| Metric | 1220×2440mm | 1250×2500mm | Difference |
|---|---|---|---|
| Sheet area | 2.9768 m² | 3.125 m² | +4.97% |
| CBM/sheet at 18mm | 0.05358 | 0.05625 | +5.0% |
| Sheets/CBM at 18mm | 18.66 | 17.78 | −4.7% |
| CBM/pallet (18mm) | ~2.95 | ~3.09 | +4.9% |
| Styrax 40HC CBM | ~53 | ~55.7 | +5.1% |
| Acacia 40HC CBM | ~47.5 | ~47.7 | +0.4%* |
| Eucalyptus 40HC CBM | ~42.6 | ~42.2 | −0.9%* |
*Acacia and eucalyptus for 1250×2500mm use reduced stack heights (970mm and 900mm respectively), which lowers sheets per pallet. The smaller sheet count per pallet offsets the larger sheet footprint — resulting in similar or slightly lower CBM totals compared to 1220×2440mm.
For buyers comparing standard vs. metric sizes, the plywood sizes and thickness specification guide covers all standard sheet dimensions available from Vietnamese factories with application guidance.
📐 Calculating CBM for Custom Thicknesses
Not all orders use standard thicknesses. For custom cuts, apply the formula directly:
CBM/sheet = 3.125 × (Thickness_mm ÷ 1000)Example: 17mm thickness
CBM/sheet = 3.125 × 0.017 = 0.053125 CBM
Sheets/CBM = 1 ÷ 0.053125 = 18.82 sheets
Sheets/pallet = ROUNDDOWN(1000 ÷ 17) = 58 sheetsFor mixed-thickness containers, calculate each batch separately, sum total CBM, then verify total weight does not exceed 28.5 MT before confirming the pallet split.
The full step-by-step CBM formula with mixed-container examples is covered in the plywood CBM calculation formula guide. For the equivalent tables in 1220×2440mm (4×8ft) format, see the CBM calculator for 1220×2440mm sheets.
🚢 Why EU Buyers Choose 1250×2500mm — And What It Means for Logistics
The 1250×2500mm size is the default sheet format for most of continental Europe. Germany, France, Spain, Poland, and the Netherlands use metric dimensions throughout their manufacturing and construction supply chains. Ordering the standard European sheet size from Vietnam eliminates cutting waste at destination and simplifies integration with European automated cutting lines.
From a logistics perspective, three points matter for importers:
CBM is higher per sheet. At any thickness, each metric sheet occupies ~5% more container volume than a 4×8ft sheet. For the same order quantity in sheets, the CBM total will be proportionally higher — and freight is quoted on CBM or weight, whichever yields more revenue for the carrier.
Weight limits apply equally. The 40HC payload ceiling of 28.5 MT does not change based on sheet size. Dense cores (eucalyptus at 650–750 kg/CBM) require careful pallet count management regardless of sheet format.
Pallet stacking remains the same. Both 1220×2440mm and 1250×2500mm sheets stack on the same 1,000mm pallet height limit. Sheets per pallet is identical at the same thickness across both sizes.
For buyers sourcing for the European market, understanding glue and emission requirements is equally important alongside CBM planning. The plywood glue types and emission standards guide covers E0, E1, and WBP requirements for EU import.
Request a Packing Calculation for 1250×2500mm Sheets
Free. No commitment. Mika Plywood will calculate exact CBM, weight, pallet count, and sheet count for your specification before you confirm any order.
✅ Summary: 1250×2500mm Plywood CBM Calculator
The formula is straightforward — three multiplications. The practical challenge is applying it correctly to 1250×2500mm rather than defaulting to 4×8ft reference data.
Key figures to remember:
- Sheet area: 3.125 m² (vs. 2.9768 m² for 4×8ft)
- Area difference: +4.97% — affects all CBM and weight calculations
- CBM/pallet: approximately 3.09–3.13 CBM at any standard thickness
- Styrax 40HC: 18 pallets, ~55.7 CBM, ~27.8 MT (stack 1000mm, 55 sht/pallet)
- Acacia 40HC: 16 pallets, ~47.7 CBM, ~27.7 MT (stack 970mm, 53 sht/pallet at 18mm)
- Eucalyptus 40HC: 15 pallets, ~42.2 CBM, ~27.4 MT (stack 900mm, 50 sht/pallet at 18mm)
For complete container packing reference data covering 1220×2440mm sheets, all core species, and full thickness breakdowns, the plywood container packing calculation guide is the primary reference.
Disclosure: This article is published by Mika Plywood, a Vietnam-based plywood manufacturer and export operator. While we aim to provide objective industry guidance, readers should consider our perspective as a market participant when evaluating recommendations.
Contact Mika Plywood for Verified 1250×2500mm Packing Data — Free quote with full CBM breakdown, weight check, and packing list before order confirmation. Factory-direct documentation, 15–20 day lead time, FOB Hai Phong.
Frequently Asked Questions
What is the CBM of a 1250×2500mm plywood sheet?CBM per sheet = 1.25 × 2.50 × Thickness(m). At 18mm: 1.25 × 2.50 × 0.018 = 0.05625 CBM per sheet. Sheets per CBM at 18mm = 1 ÷ 0.05625 = 17.78 sheets.How many 1250×2500mm sheets fit in a 40HC container?It depends on core species and stack height. Styrax core: 18 pallets × 55 sheets = 990 sheets, ~55.7 CBM (stack 1000mm). Acacia core: 16 pallets × 53 sheets = 848 sheets, ~47.7 CBM (stack 970mm). Eucalyptus core: 15 pallets × 50 sheets = 750 sheets, ~42.2 CBM (stack 900mm). Stack heights for 1250×2500mm differ by species — always confirm with your supplier.Is 1250×2500mm plywood 5% larger than 1220×2440mm?Yes. The area of a 1250×2500mm sheet is 3.125 m² versus 2.9768 m² for 1220×2440mm — a 4.97% increase. Each metric sheet consumes proportionally more CBM, which affects container totals and freight calculations.Can I mix 1220×2440mm and 1250×2500mm sheets in the same container?Yes. Calculate CBM separately for each sheet size using the respective formulas, then sum total CBM and verify combined weight stays below 28.5 MT. Pallet height (1000mm maximum) applies to both sizes.Which European markets commonly use 1250×2500mm plywood?Germany, France, Spain, Poland, and most of continental Europe use 1250×2500mm as the standard metric sheet size. UK uses 2440×1220mm (4×8ft). Middle East and South Korea also frequently specify 1250×2500mm for construction and furniture projects.
Ready to order?
Request a Packing Calculation for 1250×2500mm Sheets
Written by
Jay
International Sales Manager
Content contributor at Vietnam Plywood.
On this page
- 📐 Why 1250×2500mm Has Its Own CBM Figures
- 🔧 The CBM Formula for 1250×2500mm Plywood
- 📊 CBM Lookup Table — 1250×2500mm by Thickness
- 📦 40HC Container Totals — 1250×2500mm Sheets by Core Species
- 🔍 Worked Example: 18mm Styrax Core, 1250×2500mm
- 🔍 Worked Example: 12mm Acacia Core, 1250×2500mm
- 📋 Quick-Reference: 1250×2500mm vs. 1220×2440mm Comparison
- 📐 Calculating CBM for Custom Thicknesses
- 🚢 Why EU Buyers Choose 1250×2500mm — And What It Means for Logistics
- ✅ Summary: 1250×2500mm Plywood CBM Calculator
On this page
- 📐 Why 1250×2500mm Has Its Own CBM Figures
- 🔧 The CBM Formula for 1250×2500mm Plywood
- 📊 CBM Lookup Table — 1250×2500mm by Thickness
- 📦 40HC Container Totals — 1250×2500mm Sheets by Core Species
- 🔍 Worked Example: 18mm Styrax Core, 1250×2500mm
- 🔍 Worked Example: 12mm Acacia Core, 1250×2500mm
- 📋 Quick-Reference: 1250×2500mm vs. 1220×2440mm Comparison
- 📐 Calculating CBM for Custom Thicknesses
- 🚢 Why EU Buyers Choose 1250×2500mm — And What It Means for Logistics
- ✅ Summary: 1250×2500mm Plywood CBM Calculator
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