MDF Weight CalculatorSheet Material Weight Calculator
Calculate the weight of MDF, particle board, plywood and HDF panels. Get weight per panel, per square metre and total load for safe manual handling, transport and rack-loading decisions.
Why this calculation matters
Panel weight decides manual handling limits, how many sheets go on a pallet, what the freight costs, and whether the rack or mezzanine floor can hold the stack. Getting it wrong shows up as an injury or a refused delivery.
MDF Weight Calculator
Sheet Material Weight Calculator
Sets density and thickness.
MDF ~750, particle ~650, ply ~680.
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About MDF Weight Calculator
MDF, particle board and plywood are dense sheet materials - a single full sheet of 18mm MDF weighs around 40kg, and a stack quickly becomes a serious load. This calculator gives the weight per panel, per square metre and total, so you can plan safe manual handling, check floor and rack loading, and stay within transport payload limits. It covers the questions that come up daily — like 18mm MDF weight per sheet — and works as a plywood weight calculator too.
MDF weight by thickness (quick table)
At a standard MDF density of 750 kg/m³, for an 8×4 ft (2440×1220 mm) sheet — set your own density above for other boards:
| Thickness | Weight per m² | Weight per sheet |
|---|---|---|
| 6 mm | 4.5 kg | 13.4 kg |
| 9 mm | 6.8 kg | 20.1 kg |
| 12 mm | 9.0 kg | 26.8 kg |
| 18 mm | 13.5 kg | 40.2 kg |
| 25 mm | 18.8 kg | 55.8 kg |
So the answer to the everyday question — 18mm MDF weight — is about 13.5 kg per square metre, or roughly 40 kg for a full sheet, which is why two people carry them.
Where Is This Used?
Formulas Used
Volume (m3) = (L/1000) x (W/1000) x (T/1000)Weight (kg) = Volume x DensityWeight per m2 = (Thickness/1000) x DensityTotal weight = Weight per panel x QuantityMDF ~750, Particle ~650, Plywood ~680, HDF ~900 kg/m3Panel weight by thickness
Weight per square metre in bold, with the weight of one full 2440 × 1220 mm sheet below it. Calculated from the same densities the calculator uses, so the two always agree.
| Board type | 6 mm | 9 mm | 12 mm | 15 mm | 16 mm | 18 mm | 25 mm |
|---|---|---|---|---|---|---|---|
| MDF (standard)750 kg/m³ | 4.513 kg | 6.720 kg | 9.027 kg | 11.233 kg | 12.036 kg | 13.540 kg | 18.856 kg |
| MDF (moisture resistant)780 kg/m³ | 4.714 kg | 7.021 kg | 9.428 kg | 11.735 kg | 12.537 kg | 14.042 kg | 19.558 kg |
| Particle board650 kg/m³ | 3.912 kg | 5.817 kg | 7.823 kg | 9.829 kg | 10.431 kg | 11.735 kg | 16.248 kg |
| Plywood (BWR)680 kg/m³ | 4.112 kg | 6.118 kg | 8.224 kg | 10.230 kg | 10.932 kg | 12.236 kg | 17.051 kg |
Nominal figures. Real density varies by grade, batch and moisture content — a moisture-resistant or fire-rated board sits at the top of its range. Weigh a sample where the figure matters for lifting or rack loading.
How the calculation works
The three panel dimensions are multiplied together to give the volume of one sheet in cubic metres. That volume is multiplied by the density to give the weight of one sheet, and by the number of sheets for the stack. Weight per square metre is just thickness times density, because the length and width cancel out.
Show the formula
Volume per panel (m3) = (length/1000) x (width/1000) x (thickness/1000). Weight per panel (kg) = volume x density. Total weight = weight per panel x quantity. Weight per square metre = (thickness/1000) x density.Density is taken from the board type selected, or from the value entered.
References and what each one provides
- USDA Wood Handbook (FPL GTR-190)USDA Forest Products LaboratoryPanel density ranges for MDF, HDF, particleboard and plywood.
Unverified values are marked as such rather than presented as sourced.
Limitations of this calculation
Estimates weight from nominal dimensions and a single assumed density. It does not account for moisture variation between storage conditions, density gradients through the board thickness, coatings, edge banding, embedded hardware, or manufacturing tolerance on sheet size.
Do not use this for Lifting equipment certification, crane load charts, or rack capacity sign-off. Confirm rack ratings with the rack manufacturer.
Figures are engineering estimates from the inputs and assumptions shown. Verify against the actual material and, where the result affects structure or safety, against a qualified professional.
- Volume × density
Formula checked against the sources above by an automated regression test (tests/test-calculators.js) that derives each expected value independently of this page. Last reviewed .
How to use this tool
- Enter your material and machine details below, then press Calculate.
- Fill in density, thickness, length, width.
- Press Calculate.
Worked example
Common mistakes to avoid
- Assuming all MDF is the same density. Standard, light and HDF differ by hundreds of kg per cubic metre.
- Forgetting sheet weight when planning a delivery crew. A single 25 mm full sheet is a genuine two-person lift.
- Using MDF weight tables for moisture-resistant board. MR board is usually a little denser.
Frequently Asked Questions
Wood species data
Density, hardness and movement for 60 timbers
Full listing in the wood density chart.