Film-faced plywood
Our 9–40 mm formwork panels.
Film-faced plywoodCalculator · plywood weight
Plywood weight calculator for film-faced sheets
In short
Plywood weight = sheet area × thickness × density. An 18 mm film-faced sheet of 1220 × 2440 mm holds 0.0536 m³ of panel: 31.1 kg at the 580 kg/m³ reference for PK Ply’s Acacia core and 34.8 kg at the 650 kg/m³ reference for its Eucalyptus core. A pack of 55 such Acacia sheets weighs about 1,709 kg and 880 sheets about 27,348 kg, panels only.
- Weight = area × thickness × density
- Acacia 580 kg/m³
- Eucalyptus 650 kg/m³
- Panel only
- Weigh before loading
- 18 mm Acacia core, 1220 × 2440
- 31.1 kg
- 18 mm Eucalyptus core, 1220 × 2440
- 34.8 kg
- per m² at 18 mm and 580 kg/m³
- 10.44 kg
- 880 sheets of 18 mm Acacia
- 27,348 kg
Video
Weighing a sheet on paper
Calculator
Plywood weight calculator: sheet, pack and order
Pick the size, type the thickness, choose a density and enter the sheets per pack and the sheets in your order.
The densities are our reference values for planning: 580 kg/m³ for Acacia core and 650 kg/m³ for Eucalyptus core. Two more options show the spread you can meet in practice: 642 kg/m³, the density SGS measured on one submitted 21 mm Acacia-core phenolic specimen, and 750 kg/m³, the top of the range measured on Eucalyptus. The last line compares the order with the 28,000 kg planning payload we use for a 40HC.
Reference table
Sheet weight by thickness, size and core
Eucalyptus is about 12 % heavier than Acacia at the same size, because 650 ÷ 580 = 1.12. That is why a 40HC of 18 mm Eucalyptus-core sheets stops at 795 sheets (27,689 kg) while Acacia reaches 880 sheets (27,348 kg): the Eucalyptus load hits the 28,000 kg planning payload before the packs reach their height.
| Thickness | Acacia, 1220 × 2440 | Eucalyptus, 1220 × 2440 | Acacia, 1250 × 2500 | Eucalyptus, 1250 × 2500 |
|---|---|---|---|---|
| 9 mm | 15.5 kg | 17.4 kg | 16.3 kg | 18.3 kg |
| 12 mm | 20.7 kg | 23.2 kg | 21.8 kg | 24.4 kg |
| 15 mm | 25.9 kg | 29.0 kg | 27.2 kg | 30.5 kg |
| 18 mm | 31.1 kg | 34.8 kg | 32.6 kg | 36.6 kg |
| 21 mm | 36.3 kg | 40.6 kg | 38.1 kg | 42.7 kg |
Packs and containers
Pack and 40HC weight, 1220 × 2440 mm
| Core and thickness | Sheets per pack | Pack weight | Sheets per 40HC | 40HC panel weight |
|---|---|---|---|---|
| Acacia, 12 mm | 83 | about 1,720 kg | 1,328 | 27,514 kg |
| Acacia, 18 mm | 55 | about 1,709 kg | 880 | 27,348 kg |
| Acacia, 21 mm | 47 | about 1,704 kg | 752 | 27,266 kg |
| Eucalyptus, 12 mm | 80 | about 1,858 kg | 1,200 | 27,863 kg |
| Eucalyptus, 18 mm | 53 | about 1,846 kg | 795 | 27,689 kg |
| Eucalyptus, 21 mm | 45 | about 1,828 kg | 675 | 27,427 kg |
Panel weight only. Pallets, straps, corner protection and wrapping come on top; the packing list and the verified gross mass give the real figures.
How the numbers work
Formula, densities and limits
Density varies with the veneer batch, the moisture content and the film and glue, so we weigh real sheets before final loading; a heavier batch means fewer sheets per container, never an overweight box. The calculator weighs the panel only.
| Item | Formula or value | Basis |
|---|---|---|
| Sheet volume | area × thickness ÷ 1000 (m³) | 1220 × 2440 mm = 2.9768 m²; 1250 × 2500 mm = 3.125 m² |
| Sheet weight | volume × density | Mass = volume × density |
| Weight per m² | thickness × density ÷ 1000 | Same formula per square metre |
| Acacia core | 580 kg/m³ | Our reference density |
| Eucalyptus core | 650 kg/m³ (measured 650–750 kg/m³) | Our reference density |
| SGS specimen | 642 kg/m³ (BS EN 323) | One submitted 21 mm specimen; evidence, not a guarantee |
| Payload | 28,000 kg of panels | Planning payload, not confirmed by a carrier |
FAQ
Questions about plywood weight
How heavy is an 18 mm film-faced sheet?
31.1 kg on our Acacia core and 34.8 kg on our Eucalyptus core at 1220 × 2440 mm; 32.6 kg and 36.6 kg at 1250 × 2500 mm. These use our reference densities of 580 and 650 kg/m³.
Why is a eucalyptus-core sheet heavier than acacia?
Eucalyptus veneer is denser: 650 kg/m³ in our reference against 580 kg/m³ for Acacia, and Eucalyptus has been measured up to 750 kg/m³. The same sheet is about 12 % heavier.
How much does one pack of formwork plywood weigh?
A pack of 55 sheets of 18 mm Acacia core at 1220 × 2440 mm weighs about 1,709 kg of panels; a pack of 53 Eucalyptus sheets about 1,846 kg. The pallet and packing come on top.
How much do your panels weigh in a 40HC?
880 sheets of 18 mm Acacia core weigh 27,348 kg and 795 sheets of Eucalyptus core 27,689 kg, panels only, as planning figures under a 28,000 kg payload.
Why are eucalyptus loads capped by weight?
Fifteen full packs of 18 mm Eucalyptus sheets would weigh about 28,734 kg, more than the 28,000 kg planning payload, so each pack is trimmed to 53 sheets. Acacia packs reach their height first.
Should real sheets be weighed before final loading?
Yes. Density varies by batch, so we weigh real sheets before final loading and the packing list and verified gross mass carry the real weight.
Related pages
Panels, loading and the other calculators
Loading a 40HC
How the packs go into the box.
Loading a 40HC18 mm film-faced plywood
The most ordered thickness, in detail.
18 mm film-faced plywoodPallet loading calculator
Sheets, packs, m³ and tonnes per 40HC by core, size and thickness.
Pallet loading calculatorPour cost calculator
Your sheet price divided by the pours a build gives, per sheet and per m².
Pour cost calculatorFormwork plywood quantity
Contact area of slabs, walls and columns turned into sheets and a share of a 40HC.
Formwork plywood quantityFormwork panel span
Joist spacing and deflection for 12–21 mm panels, as a planning estimate.
Formwork panel spanConcrete pressure on formwork
Lateral pressure of fresh concrete on walls and columns after ACI 347R-14.
Concrete pressure on formworkLanded cost
From an FOB Hai Phong price to landed cost per sheet and per pour.
Landed costSpecification
Send your sheet list
Send the sizes, thicknesses and core. We reply with sheets per pack, pack weights and the container plan from our two mills in Chi Linh, Hai Phong, which load up to 150 containers a month.