Choose the product and thickness first, then agree the density needed for your component and calculate its weight from the same dimensions.
A useful density specification makes purchasing, production and receiving easier. It tells your team which board is being quoted, what a sample result describes and how much material your workshop will handle. CUZI MDF manufactures and supplies MDF and HDF from our factory in Shuyang, China. This guide connects our published schedules with a practical calculation, sample check and order request.
For a compact wood-fibre panel, compare CDF board with the actual MDF or HDF grade you are considering. Our CDF vs compact laminate vs HPL MDF guide explains the core constructions and the surface, edge and machining choices for furniture and interiors.
Identify the density value you are reading
Four numbers can appear in the same purchasing discussion: a published product range, a selected nominal target, an order acceptance requirement and a measured result. Each answers a different question. Put its product, thickness and purpose beside the number so a catalogue estimate and an inspection result remain clear to everyone reviewing the order.
| Density information | What it describes | How to use it in your order |
|---|---|---|
| Published reference range | The stated density band for a product and thickness group | Start product selection and calculate a planning weight interval |
| Quoted nominal target | The density selected for the identified order specification | Record it with thickness, dimensions, grade and supplied condition |
| Agreed acceptance requirement | Target or limits, sampling, conditioning and measurement method | Establish how the specified batch or specimens will be checked |
| Measured result | An identified specimen or sample set measured under recorded conditions | Compare the relevant result with its agreed acceptance requirement |
A nominal 700 kg/m³ selection can be useful for a particular 18 mm Raw MDF calculation. The quotation records whether 700 is the selected target, a planning input or part of the acceptance requirement. Its tolerance and result format are stated separately. The full 680–750 kg/m³ published band describes the product group; it becomes an acceptance band only when the written order assigns that role to it.
A measured specimen is linked to its batch, position, dimensions, mass and condition. A reported average also states the number and selection of specimens. The records give each result its scope. This helps you compare offers and inspect deliveries using the same basis. Our ordering specification guide brings these values together with the rest of the order.
Read the schedule for the selected thickness and product
The table shows our published thickness groups for standard Raw MDF, HDF and High Moisture Resistant MDF. Each column belongs to its named product. The figures are supply references in kg/m³; the quote identifies the selected board and any order-specific density target or tolerance.
| Nominal thickness group | Raw MDF, kg/m³ | HDF, kg/m³ | HMR MDF, kg/m³ |
|---|---|---|---|
| 2–4 mm | 800–810 | 850–930 | 820–860 |
| 5–8 mm | 780–800 | 830–890 | 790–820 |
| 9–11 mm | 760–780 | 780–830 | 760–790 |
| 12–18 mm | 680–750 | 730–780 | 710–750 |
| 19–35 mm | 650–680 | 680–730 | 650–710 |
Our Raw MDF and HDF ranges cover 2–35 mm. Choose the thickness needed for the component's support, profile and hardware, then read the corresponding density column. Both 12 mm and 18 mm Raw MDF sit in the same published 680–750 kg/m³ group. They have different volumes and weights at the same sheet format and density.
Hardboard has its own 1.5–5 mm thickness range and 810–960 kg/m³ density range, together with the actual face and reverse construction. MR MDF uses the confirmed core's schedule; an MR or HMR request also specifies the required moisture performance. A faced panel identifies its core density separately from its decorative layers and completed dimensions.
These are CUZI MDF product schedules. A density band from another board or thickness is useful when its own product identity stays attached. A 650 kg/m³ input, for example, is in our 19–35 mm Raw MDF band; the published Raw MDF range for an 18 mm order is 680–750 kg/m³. The controlled comparison later in this guide labels 650 as an arithmetic input outside that 18 mm range.
See Raw MDF, HDF, High Moisture Resistant MDF and Thin MDF Board for their supplied conditions. Lightweight MDF is a separately identified product option when the component or handling requirement calls for a lighter board.
Calculate sheet mass from dimensions and density
For a plain rectangular sheet, volume in m³ equals length × width × thickness with all dimensions in metres. Calculated board mass in kg equals that volume × density in kg/m³. A 1220 × 2440 × 18 mm sheet therefore has nominal volume 1.220 × 2.440 × 0.018 = 0.0535824 m³. At a selected calculation density of 700 kg/m³, its estimated bare mass is 37.50768 kg, or 37.51 kg rounded.
The following examples use the same nominal 1220 × 2440 mm format. Density intervals come from the relevant published product group above. Values are calculated bare-board estimates, with mass rounded to two decimal places. Actual dimensions and condition establish the measured sheet mass.
| Product and nominal thickness | Nominal volume per sheet, m³ | Published density input, kg/m³ | Calculated bare mass, kg |
|---|---|---|---|
| Raw MDF, 3 mm | 0.0089304 | 800–810 | 7.14–7.23 |
| HDF, 3 mm | 0.0089304 | 850–930 | 7.59–8.31 |
| Raw MDF, 12 mm | 0.0357216 | 680–750 | 24.29–26.79 |
| Raw MDF, 18 mm | 0.0535824 | 680–750 | 36.44–40.19 |
| HDF, 18 mm | 0.0535824 | 730–780 | 39.12–41.79 |
At a fixed density, doubling thickness doubles calculated mass for the same length and width. When comparing different thickness groups, use each group's selected density as well as its volume. For 100 of the 18 mm sheets at 700 kg/m³, nominal board volume is 5.35824 m³ and calculated net board mass is 3750.768 kg, rounded to 3750.77 kg. Packing and any later layers are additional mass.
The MDF sheet weight and CBM calculator lets you enter your own dimensions, density and quantity. Keep the inputs with the saved result so receiving can distinguish the planning calculation from the shipment weight. The board-size and thickness guide also connects sheet format to component layout and material yield.
Compare MDF and HDF at the same dimensions
MDF and HDF can have similar-looking brown fibreboard faces. Compare their stated product and density numerically at the same thickness and volume. The diagram uses identical neutral sheet shapes and the published inputs for the 3 mm and 18 mm groups. It shows a calculation, with the catalogue ranges and rounded mass labels visible together.
At 3 mm, our stated HDF band is 850–930 kg/m³ and Raw MDF is 800–810 kg/m³. The same 0.0089304 m³ sheet volume produces the separate calculated intervals in the diagram. At 18 mm, HDF is 730–780 kg/m³ and Raw MDF is 680–750 kg/m³. Those bands overlap from 730 to 750 kg/m³, so their calculated mass intervals overlap too.
Using the same assumed 740 kg/m³ within that overlap, either nominal 1220 × 2440 × 18 mm bare sheet calculates to 39.650976 kg, rounded to 39.65 kg. The result describes mass from equal inputs. The actual product specification, supplied condition and relevant performance requirements identify which board you are ordering.
The diagram's range bars use labelled kilogram axes; the shapes and colours provide a neutral comparison. They show calculated intervals from the labelled nominal dimensions and published density bands. The MDF vs HDF guide develops product selection, while MDF vs particle board discusses a different core construction. This page keeps the focus on density information and its calculation.
Measure an identified specimen with recorded conditions
A specimen result uses measured mass divided by measured volume. With mass in grams and dimensions in millimetres, density in kg/m³ equals mass × 1,000,000 ÷ (length × width × thickness). This unit conversion brings the calculation to the same kg/m³ used in the quotation.
For an arithmetic example, assume a specimen has measured inputs of 50.00 × 50.00 × 18.00 mm and 31.50 g. Its volume is 0.000045 m³ and mass is 0.03150 kg, giving 700 kg/m³. If the independently assumed measured thickness is 18.10 mm with the other inputs unchanged, volume is 0.00004525 m³ and the result is 696.13 kg/m³. These are hypothetical input sets, illustrating why the specimen's measured thickness belongs in the calculation.
The European Panel Federation's property-assessment guidance describes density measurement from specimen mass and dimensions and distinguishes average density from a density profile. Its standards directory identifies EN 323 for density and separate methods for sampling, dimensions and moisture content. The current method and order define the actual procedure and acceptance limits.
For a buyer-led, factory or third-party check, agree the sample selection and record the work in sequence:
- Identify product, thickness, batch, bundle and the sampled sheet or specimen position.
- Apply the agreed conditioning and record the condition used for weighing and measuring.
- Measure dimensions at the locations required by the selected procedure.
- Weigh with suitable equipment, recording units and instrument identity.
- Calculate each identified result from its measured inputs and retain the original readings.
- Report individual values, average, variation and disposition in the form agreed for the order.
A quick full-sheet check gives the apparent average for that measured sheet and its supplied construction. A controlled specimen programme answers the specified batch-inspection question. Samples from different sheets and positions follow the agreed selection plan. The pre-shipment checklist helps carry that identity into the inspection record.
Connect density to the component and its required properties
Bulk density is an average over the measured volume. A through-thickness density profile describes how density is distributed between the faces and interior. Two boards with the same average can have different distributions and supplied conditions. Review the actual face, cut edge and routed profile with the selected machining and finish to find the board that suits your line.
For a routed door, retain the board identity, thickness, groove depth, radii, remaining section and the observations from the first part. For a painted component, check broad faces, exposed edges and details through the selected coating process. The CNC specification guide and painting selection guide make those sample requests practical.
Density and the following properties have separate records:
- Bending strength and stiffness use the relevant product values and the complete part's span, support, loading and design.
- Internal bond describes the tested panel's resistance to separation through its thickness.
- Screw withdrawal uses the specified test; actual hardware fit and fastening performance also depend on the screw, pilot hole, engagement, edge distance and assembly.
- Moisture performance belongs to the selected grade, exposure and applicable tests, with the completed edges and joints included in the design.
- Emissions and fire classification follow the named construction, method, result and applicable product or assembly scope.
The EPF property guide lists distinct tests for density, bending, internal bond and screw withdrawal. For your project, match the actual report to its product and method, then trial the complete component. A density target is useful alongside those requirements. The MDF strength and screw-holding guide explains the mechanical results, and our quality information helps organise destination documents.
Compare fixed quantities and read the recorded loading case
Hold sheet dimensions and quantity fixed to see the weight effect of density. This comparison uses nominal 1220 × 2440 × 18 mm sheets and 768 sheets, giving 41.1512832 m³ of board. The four density values are labelled calculation inputs; 650 kg/m³ sits outside our published 18 mm Raw MDF band. A new order uses its selected product and actual packing plan.
| Density calculation input | Calculated bare mass per sheet, kg | Calculated net board mass for 768 sheets, t | Meaning for this comparison |
|---|---|---|---|
| 650 kg/m³ | 34.829 | 26.748 | Arithmetic input outside our 18 mm Raw MDF band |
| 680 kg/m³ | 36.436 | 27.983 | Nominal density used in the linked recorded shipment |
| 700 kg/m³ | 37.508 | 28.806 | Selected example within the 12–18 mm Raw MDF band |
| 750 kg/m³ | 40.187 | 30.863 | Upper endpoint of that published Raw MDF band |
Calculations use unrounded sheet mass, then round the displayed totals. Changing the input from 650 to 700 kg/m³ increases the calculated mass of this fixed quantity by 2057.56416 kg, or 2.058 t rounded. Whether that density is appropriate belongs to the product and component decision; the table makes the handling and freight effect visible.
Our recorded 18 mm E1 MDF loading case identifies a nominal 680 kg/m³ board, 48 sheets per bundle, 16 bundles and 768 sheets in a 40-foot High Cube container. Its stated theoretical net board mass is 27,983 kg, the recorded net figure is 28,000 kg, packing is 500–800 kg and recorded gross is 28,500–28,800 kg.
The exact nominal calculation gives 27,982.872576 kg, about 17.13 kg below the recorded 28,000 kg figure. Read both with their stated precision and mass basis. They describe a planning calculation and shipment record, respectively. The comparison gives a useful reference; each new booking uses its own confirmed cargo, carrier requirements, container and transport limits.
Turn the calculation into a practical pack and receiving plan
For the same bare 18 mm board at 680 kg/m³, a nominal 48-sheet bundle calculates to 1748.93 kg before packing. A bundle count helps organise the order, while its gross mass also includes cover boards, bearers or pallet, wrapping, straps and any other protection. The actual pack and measured gross weight guide lifting and unloading.
Facing, adhesive and coating add mass to their MDF core. Machining removes material; hardware adds it. Identify the supplied stage before comparing a finished panel, routed part or pack with a bare-sheet estimate. Moisture and conditioning also affect the weighed material. Use actual completed dimensions and the relevant construction when estimating the received product.
When an observed mass differs from the estimate, review product identity, dimensions, density input, moisture condition, added or removed material, packaging and weighing units. For a faced panel, record core thickness separately from completed thickness. For a machined part, use its actual geometry or measured part mass. This turns the difference into a clear check of the inputs.
Our packaging and shipping information and container-loading data guide connect pack dimensions, weights and receiving equipment. Confirm the packed-cargo figures and suitable lifting equipment for the destination. Density helps calculate an estimate; the accepted packing list carries the actual shipment quantities and weights.
Send a density request our factory can quote
Start with product, thickness, full-sheet size or component drawing, quantity and destination. Add a density target when specified, or explain the machining, finished-part or handling need behind the question. We can discuss the suitable product schedule and sample programme with you, then put the selected specification into the written quotation.
Keep each thickness and format on its own line. Our listed board formats include 1220 × 2440, 2100 × 2800, 1830 × 3660, 1830 × 2440, 2440 × 3660 and 1830 × 4200 mm. Add the core grade, surface construction, finishing work, required documents, acceptance method and packing or unloading constraints. The actual product/format combination and supplied condition follow the quote.
Compare price at the same supply scope and unit. Density changes the calculated mass; board or component cost also reflects material, facing, machining, inspection, packing and accepted output. The quotation comparison guide and Raw MDF vs Melamine MDF guide help organise that complete cost comparison.
We reply within 12 hours. Product samples are free and generally available from stock; the buyer pays courier cost, which can be credited against the formal order. We confirm sample identity, availability, preparation, dispatch and estimated transit time before sending. Request MDF and HDF comparison samples for the same thickness and dimensions so your team can evaluate useful inputs.
Normal MOQ is 1 × 20'GP per specification. Normal production lead time is 3–10 days after specification and commercial confirmation, with additional processing scheduled in the quote. Formal quotations include specification, quantity, price/currency, packaging, FOB Qingdao or FOB Lianyungang, lead time, T/T or LC terms and validity. Export ports are Lianyungang and Qingdao, and third-party inspection is supported. Request a density-specific quotation or request density and product documents.
Questions buyers ask
What is the density of MDF in kg/m³?
Read the product's thickness group. CUZI MDF Raw MDF uses 680–750 kg/m³ for 12–18 mm, with the other groups shown in the schedule. The selected nominal density and order acceptance requirement belong to the actual quotation.
Is 700 kg/m³ suitable for an 18 mm MDF calculation?
700 kg/m³ lies within our published 12–18 mm Raw MDF band. Use it as an identified calculation input or selected quote target, then specify the grade, component, supplied condition and relevant performance requirements for the order.
Is higher-density MDF always the better choice?
Choose the board that meets your component and production requirements. A higher density increases calculated mass at the same volume. Compare the actual machining, finish, mechanical values and handling with the complete part and required reports.
How much does an 18 mm 1220 × 2440 mm MDF sheet weigh?
At 680–750 kg/m³ it calculates to 36.44–40.19 kg of bare board; at 700 kg/m³ the estimate is 37.51 kg. Actual dimensions, condition and any layers establish the measured mass. Packing is additional.
Can MDF and HDF have the same calculated weight?
Yes, when their dimensions and density input are the same. Our 18 mm bands overlap from 730 to 750 kg/m³. At 740 kg/m³, either nominal 1220 × 2440 × 18 mm bare sheet calculates to 39.65 kg; the product specification identifies the actual board.
Can I use a weighed full sheet as a density test?
Measured mass divided by measured volume gives an apparent average for that sheet and its supplied construction. For acceptance, agree the specimen selection, conditioning, method, result format and limits so the result answers the order's inspection requirement.
Does MDF density confirm screw holding, moisture resistance or emissions?
Density describes mass per volume. Screw withdrawal, moisture performance and emissions each use their applicable product or component information and test method. Match those records to the selected board, hardware, construction and destination.
How many MDF sheets can be loaded in a container?
Calculate the order mass using the selected dimensions and density, then confirm actual bundle dimensions, gross mass, loading arrangement and transport limits. The 768-sheet case is a record of its stated shipment; your booking receives its own loading plan.
Can I buy specified-density MDF directly from CUZI MDF?
Yes. Send the product, thickness, format or drawings, density requirement, quantity and destination to our factory. We confirm the selected supply and inspection scope in the quote, with free product samples and supported third-party inspection.