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HDO & MDO PLYWOODSURFACE · CORE · END USE

HDO and MDO Plywood for Formwork, Signage and Coated Panel Programs

CUZI PLY HDO and MDO plywood combine a resin-impregnated overlay with a selected veneer core, exterior bond, controlled dimensions and sealed-edge option. MDO provides a stable paint and coating base for signage, exterior panels and matte concrete finishes; HDO provides a harder, lower-absorption face for smooth formwork and demanding industrial surfaces. Choose the overlay, face/back arrangement, core, moisture, machining, coating or release system, packing and destination documents as one complete construction.

Separate MDO, HDO and raw plywood reference samples showing matte kraft and dark hard overlays beside a continuous sanded veneer face with cross-laminated layers visible only at the edges
Overlay & core comparisonHDO and MDO overlays sit beside a raw plywood reference whose continuous veneer face and cross-laminated edge remain distinct for the surface-selection decision.
MDO surface
Paint, coating, signage, matte finish
HDO surface
Hard surface, forming, wear, cleaning
Thickness
6–30 mm by construction
Moisture
8–12%
Export reference range
USD 520–1,350/m³
Price reference size
1220×2440×18 mm
HDO VS MDO SELECTION

Match the overlay to the required finish, coating and service method.

MDO surface

Stable resin-fibre face for primer, paint, graphics and project-specified matte concrete finishes.

HDO surface

Harder, more resin-rich and lower-absorption face for smooth formwork, wear and repeated cleaning.

Face arrangement

One-face, two-face or controlled balancing back, stated with colour, texture, sheen and priming.

Panel build

Selected support veneer, balanced core, exterior phenolic bond and sealed edges beneath the overlay.

Fabrication

Cutting, drilling, edge resealing, coating or release agent are matched to the finished application.

Commercial range

USD 520–1,350/m³ across paint-base, formwork and project-specific overlay constructions.

Compare the required face result first, then align the core, bond, dimensions, fabrication method and documents before comparing quotations.

Compare HDO and MDO by applicationSurface, finish, construction and fabrication · 8 comparison fieldsShow comparisonHide comparison
Selection fieldMDO optionHDO optionInformation to provide
Overlay rolePaint/coating base, sign and exterior-finish option; matte formwork where specifiedHard, low-absorption, wear and smooth-forming optionRequired surface result
Face optionsOne/two face; primed or unprimed programmeOne/two face; industrial or forming programmeFace/back construction
FinishPaint-ready or coating-specific after preparationSmooth hard surface; coating only when the system is confirmedPaint/release/coating compatibility
Concrete resultMatte or project-specifiedSmooth/low-porosity result where construction and site practice support itFinish class and mock-up
Wear/cleaningproject requirementsHigher-duty option by constructionMethod and acceptance threshold
Core/bondSelected by useSelected by useSpecies, lay-up, bond class
Edge/cutReseal after machining when exposure requiresReseal after machining when exposure requiresCompatible seal system
DocumentsPaint/coating, bond, dimensions and project documentsBond, dimensions, surface/forming and project documentsNamed method and required records

HDO means High Density Overlay plywood and MDO means Medium Density Overlay plywood. Both use a resin-impregnated fibre face consolidated with the panel under heat and pressure. HDO generally uses a harder, more resin-rich, low-absorption surface; MDO generally gives a stable paintable or coating-specific face and can also serve qualified matte concrete-forming work.

MDO retains a cross-laminated plywood core beneath its treated overlay. HDO uses a harder overlay construction suited to smooth forming and industrial surface duty. The intended paint system, concrete finish, wear, cleaning method and budget determine the appropriate option.

Name the expected result: a primed paint base, matte concrete surface, smooth concrete surface or industrial face for a defined cleaning and wear regime. The overlay choice follows that result, then the core, lay-up, support veneer, bond, dimensions and edge system are matched to it.

Structural, fire, slip, marine and installed-system requirements are specified through their applicable product and project standards alongside the selected HDO or MDO construction.

PRODUCT OPTIONS

Choose the construction around your finished surface.

Paint & coating

MDO Paint & Sign Base

Select a paint-ready MDO face, core and edge system around the approved coating or sign fabrication method.

Application
Painted signage blanks, exterior coated panels, soffit/siding bases and industrial coated parts
Dimensions
1220×2440 mm standard; 1250×2500 mm standard
Documents
EN bond, dimensions, emission and product documents as required
Reference price
USD 520–720/m³USD 27.86–38.58/sheet on the reference size
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Formwork & wear

HDO Formwork & Industrial Surface

Select a hard HDO surface with the panel construction, edge, release and inspection method required by the forming or industrial duty.

Application
Smooth concrete-forming faces, industrial work surfaces and reusable panel systems
Dimensions
1220×2440 mm standard; 1250×2500 mm standard; 1525×3050 mm after confirmation
Documents
EN bond and dimensional documents plus forming or industrial test records
Reference price
USD 700–980/m³USD 37.51–52.51/sheet on the reference size
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Custom fabrication

Project-Specific Overlay System

Coordinate the HDO/MDO face and back, selected core, machining, mock-up, documents and large-format feasibility as one specification.

Application
Specified overlay systems, large formats, CNC parts and project-controlled surfaces
Dimensions
1220×2440 mm standard; 1250×2500 mm standard; 1525×3050 mm after confirmation; 1220×3800 mm after confirmation; 2100×2800 mm after confirmation
Documents
Project-specific standard, test, sourcing and submittal documents
Reference price
USD 950–1,350/m³USD 50.90–72.33/sheet on the reference size
Enquire about this construction
OVERLAY PRESSING & SURFACE INSPECTION

Support the entire panel and inspect the face as a controlled material surface.

A fully supported overlaid plywood panel being checked for surface continuity at an industrial press and inspection line
Pressing & inspectionOverlay consolidation and supported inspection connect press conditions with colour, continuity, bonding and the finished face.
CORE / BOND / DIMENSIONS

Specify the complete plywood construction beneath the overlay.

Overlay build

MDO or HDO, one/two-face arrangement, colour, finish, priming and surface sample.

Core choices

Poplar, combi, eucalyptus-hardwood, selected hardwood or birch-led high-ply construction.

Size range

1220×2440 and 1250×2500 mm standard; qualified project formats up to 2100×2800 mm.

Panel control

6–30 mm thickness range, 8–12% moisture and stated tolerance, squareness and flatness method.

Edges & machining

Factory edge seal plus compatible resealing for exposed cuts, holes and CNC-machined details.

Commercial basis

Three options referenced to 1220×2440×18 mm for consistent USD/m³ and per-sheet comparison.

View the complete specification27 order fields · Compare MDO paint-base, HDO formwork and project-specific optionsShow specificationsHide specifications
Specification fieldMDO paint-baseHDO formworkProject overlay
Overlay typeMDO resin-fiber overlay; buyer-approved basis weight and treatmentHDO resin-fiber overlay; programme-specific hard surfaceProject-specified HDO/MDO face/back system and approved sample
Face / back arrangement1S or 2S MDO; MDO, balanced or project back1S/2S HDO or HDO face with controlled backProject HDO/MDO combination, balanced back or two-face system
Surface colour / finishKraft, opaque, grey, brown, white or an available project colourBrown, black, grey or project colour; smooth hard forming/industrial finishBuyer-selected colour, texture, sheen and face/back references
PrimingUnprimed or factory-primed to suit the selected coating systemUnprimed forming face or a separately specified compatible coatingProject primer, coating or form-release mock-up
Core speciesSelected poplar, combi or eucalyptus-hardwoodSelected hardwood, eucalyptus, combi or project coreSelected hardwood, birch-led, high-ply or project construction
Core construction / lay-upBalanced cross-lay matched to paint and fabrication dutyBalanced selected veneers with controlled overlaps and voidsProject lay-up and ply count tied to machining, surface and dimensions
Face / support veneerSupport veneer selected for overlay flatness and paint resultDense selected support veneer for HDO consolidationBuyer-selected support veneer and surface preparation
Bond / adhesive systemExterior phenolic option as export baseline; other options by useExterior phenolic optionProject and destination matched bond system
Standard sizes1220×2440; 1250×2500 mm1220×2440; 1250×2500 mm1220×2440; 1250×2500 mm plus qualified project formats
Oversize qualification1220×2440 and 1250×2500 mm standard formats1525×3050 mm after overlay, press, flatness, handling and pack confirmation1525×3050, 1220×3800 and 2100×2800 mm after technical and loading confirmation
Thickness9, 12, 15, 18, 21 and 24/25 mm; other 6–30 mm sizes by order9, 12, 15, 18, 21 and 24/25 mm; other 6–30 mm sizes by orderProject thickness and ply count; 3/4 in stated as an actual millimetre value and tolerance
Thickness toleranceAbout ±0.6 mm on the stated measurement methodAbout ±0.5 mm on the stated measurement methodAbout ±0.3 mm where the selected construction and method support it
Squareness / edge straightnessOrder tolerance and sampling method confirmedControlled to order and EN 315 option when nominatedDrawing and project method control
Moisture range8–12%; matched to coating, use and destination8–12%; matched to forming, core and destination8–12% or a stated project range linked to core, machining and surface system
Density / panel weightCalculated from the selected poplar/combi/eucalyptus constructionCalculated from the selected hardwood/eucalyptus/combi constructionCalculated for the selected high-ply or project lay-up
Edge sealingFactory edge seal where exposure or coating system requiresCompatible factory seal for forming/industrial exposureProject colour, chemistry and coverage matched to the sample
Cut-edge / drilled-hole treatmentReseal exposed cuts and holes where service requiresReseal cuts and holes with a compatible systemDrawing-led machining and reseal inspection
CNC / cutting / drilling optionsPanel saw or CNC option matched to tooling and painted-edge finishCutting and drilling option matched to edge sealing, form release and fixingCNC files, tool path, tolerance, edge distance and first-piece sample
Paint / coating preparationClean, prepare and prime for the selected coating systemSurface preparation and coating compatibility stated for the selected HDO faceCoating stack and preparation demonstrated on the project mock-up
Concrete release / cleaning inputMatte-forming option with the form-release and cleaning method statedRelease agent, cleaning tools and acceptable surface result statedMock-up combines panel, release agent, concrete mix, support and cleaning method
Surface / overlay inspectionMDO sample, colour, continuity, priming and defect limitsHDO sample, sheen, continuity, bonding and local-defect limitsFace/back sample, measured requirements and project acceptance
Bond / dimension documentsProduct specification and EN 314/315 documents on requestEN 314/315 documents and project surface recordsNamed methods, samples, reports and submittal list
PackingDry flat support, face paper, aligned bearers, corners, parallel straps, moisture wrapFull-width support and overlay protection; straps kept from marking faceProject/oversize cradle, full-length support and loading validation
MOQ / quantity basisConfirmed against colour, priming, thickness mix and packConfirmed against HDO surface, core, thickness and required documentsProject lot based on custom face/back, machining, samples and tests
Lead-time inputsOverlay/primer availability, core, thickness mix, sample and packOverlay, selected core, press, inspection, documents and packMaterial selection, mock-up, tooling, tests and oversize handling
Quotation unitUSD/m³; sheet math only on the same reference basisUSD/m³; sheet math only on the same reference basisUSD/m³ plus separately stated machining/testing where applicable
Required sample / mock-up optionMDO face and coating coupon matched before productionHDO face and forming/industrial surface reference matched before productionProject mock-up and signed face/back specification
MDO PAINT & SIGN-BASE

Build the MDO face into a complete coating and fabrication system.

MDO supplies a stable, treated fiber face over plywood for a buyer-approved primer, paint or coating system. Painted outdoor or industrial signs, construction sign substrates, coated panels, soffit or siding bases and industrial enclosures are specified with the coating stack, supports, exposed edges, holes, maintenance and destination requirements.

For a 3/4 MDO plywood request, the quotation states the actual millimetre thickness and tolerance. Permanent traffic-sign performance is developed through the selected MDO construction, coating, graphics, fixing, support and maintenance specification.

Select
MDO face/back, primed or unprimed, core, bond and approved paint sample
Control
Cleaning, preparation, primer/paint compatibility, cuts, holes and edge reseal
Confirm
Coating coupon, adhesion/finish criteria and destination project documents
MDO PAINT & SIGN FABRICATION

Match the coating sample to the same face and edge system used for production.

MDO plywood paint-base panel being primed on a supported fabrication table beside plywood sign blanks
MDO coating & fabricationMDO priming and fabrication combine the supported blank, coating system and finished edge in one repeatable process.
HDO FORMWORK & INDUSTRIAL SURFACE

Specify the HDO surface, forming method and cleaning duty together.

HDO provides a hard, low-absorption and wear-oriented surface for smooth concrete, industrial work faces and reusable panel systems. Panel construction, support, ties and fasteners, release agent, concrete mix, vibration, cleaning, storage, sealed edges and site handling determine the working result and practical reuse.

A smooth-concrete order names the finish class or approved mock-up. Industrial surface orders state the expected wear, chemicals, cleaning tools and acceptance thresholds so the HDO construction and inspection method match the actual duty.

Select
HDO face/back, selected core, exterior bond and dimensional requirements
Control
Support, ties, release, cleaning, sealed edges and lot inspection
Confirm
Surface mock-up and named bond, dimension or project method
HDO FORMWORK & CONCRETE SURFACE

Match the panel surface to the supported forming system.

One operator reviews a supported HDO wall-form assembly and cured concrete face sample with one gloved hand naturally touching the sample and the other resting at his side
HDO forming surfaceThe supported HDO form face and concrete sample connect panel surface, forming support and the resulting finish.
RELATED PRODUCT SELECTION

Choose the plywood construction that matches the finished application.

Film Faced Plywood

Best used for: Conventional formwork film with matched core and sealed edges

Choose when: The required surface is a conventional film face for concrete formwork.

Structural Plywood

Best used for: Declared structural grade and design properties

Choose when: The panel must carry structural values for engineering design.

Outdoor signage system

Best used for: MDO construction combined with coating, graphics, supports and destination rules

Choose when: The order includes the complete outdoor sign substrate and coating specification.

Melamine / HPL

Best used for: Decorative paper or high-pressure laminate system

Choose when: The required surface is a decorative melamine or HPL finish.

Anti-Slip Plywood

Best used for: Pattern geometry, slip condition and test method

Choose when: The working face requires a textured tread surface and slip test.

T1-11

Best used for: Grooved siding profile and installed wall specification

Choose when: The wall panel requires a machined groove profile and siding details.

QUALITY / EDGE / MACHINING / PACKING

Carry the selected surface from inspection through delivery.

  1. Approved overlay sample
  2. Face colour, texture and continuity
  3. Overlay bonding and local defects
  4. Thickness, squareness and flatness
  5. Edge, corner and machining inspection
  6. Paint, release or mock-up method where ordered
  7. Lot identity and product documents
  8. Pack protection

Use tooling suited to the overlay and plywood build, with the blade, tool path, edge distance, cut quality, hole treatment and resealing stated for the application. Packs remain dry, flat and fully supported with face isolation, aligned bearers, corner protection, parallel straps and moisture wrapping. Large formats use full-length handling and loading support.

STANDARDS & MARKET DOCUMENTS

Match each standard and document to the construction, use and destination.

The order identifies the applicable bond, dimensions, emissions, sourcing, due-diligence and project documents for the selected construction. APA terminology provides an established industry reference for HDO/MDO overlay selection, while eligible North American orders can nominate PS 1 or an applicable APA grade.

Standard / requirementAvailabilityApplies to
EN 636Available on requestProduct use/environment class for the defined construction
EN 314-1 / EN 314-2Available on requestBond testing and bonding-quality requirements
EN 315Available on requestDimensions and tolerances
Product specification / inspection planAvailableOrder construction, approved sample, inspection method and document list
EN 13986 / CPR / DoP / CEProject-specificApplicable construction use and technical topics only
ISO 12465Available on requestBuyer-nominated international plywood specification
EN 717-1/E1 / REACH Entry 77Available on requestEuropean emission requirements when triggered
FSC / PEFC transactionAvailable on requestCovered transaction and matching material records
EUDR due-diligence documentsImporter confirmation requiredOperator/importer due-diligence inputs
Australia illegal logging / BICONImporter confirmation requiredAustralian order and live import pathway
Project submittalAvailable on requestSamples, reports, agreed variations and document index
REFERENCE PRICES

Compare complete HDO and MDO constructions on the same reference size.

Reference
1220×2440×18 mm; 0.05358 m³/sheet; full-container quantity basis
Price date
2026-08-18
Commercial terms
Port, Incoterm, freight, tax and destination charges are confirmed in the quotation.

Export reference ranges for the stated format and full-container quantity basis. The sheet values use the same 1220×2440×18 mm construction volume for comparison.

MDO Paint & Sign Base

USD 520–720/m³

USD 27.86–38.58/sheet

MDO paint and sign-base construction with selected core, priming, coating sample and export packing.

HDO Formwork & Industrial Surface

USD 700–980/m³

USD 37.51–52.51/sheet

HDO formwork and industrial-surface construction with selected core, sealed edges and surface inspection.

Project-Specific Overlay System

USD 950–1,350/m³

USD 50.90–72.33/sheet

Project overlay system with custom face/back, high-ply core, machining, mock-up, documents and large-format handling.

The three ranges compare export-oriented MDO, HDO and project overlay constructions on the same reference size. The final quotation adjusts for the selected overlay, face/back arrangement, core, bond, dimensions, machining, documents, quantity, packing and delivery terms.

BUYER QUESTIONS

Overlay, fabrication and price

Questions before you order.

What is the difference between HDO plywood and MDO plywood?

Both are plywood faced with resin-impregnated fiber overlay. HDO usually provides a harder, more resin-rich, low-absorption and wear-oriented surface; MDO usually provides a stable paint or coating base and can serve a qualified matte-forming application. The quotation also states the selected core, bond, dimensions, edges and product documents.

How does MDO plywood differ from MDF?

MDO is Medium Density Overlay plywood: a thin treated fiber face consolidated over a cross-laminated plywood core. MDF is made from compressed wood fibers. MDO retains plywood's layered veneer construction and is selected for coating, fabrication and exterior-service specifications.

Which overlay is suitable for concrete formwork?

HDO supports a hard, smooth, low-absorption forming face, while qualified MDO supports matte concrete finishes. The practical finish and reuse result come from the complete panel, supports, ties, release agent, concrete, cleaning, sealed edges and site handling.

Can MDO plywood be painted for outdoor signage?

Yes. Configure MDO with the selected primer, paint, graphics or reflective layer, sealed edges and holes, compatible fixings and support. A coating sample confirms adhesion, colour, finish and edge treatment before production.

Can HDO or MDO be supplied one-sided or two-sided?

Yes. The order can use one overlay face with a controlled balancing back, matching overlays on two faces or a project-specified face/back combination. Both faces are stated in the specification so the construction matches the exposure and fabrication method.

What sizes and thicknesses are available, including 3/4 inch?

1220×2440 and 1250×2500 mm are standard comparison sizes. Project formats include 1525×3050, 1220×3800 and 2100×2800 mm after confirming overlay continuity, press capacity, flatness, handling and packing. Common thicknesses are 9, 12, 15, 18, 21 and 24/25 mm. For a 3/4 MDO plywood enquiry, state the required millimetre thickness and tolerance.

How should cut edges, holes and coatings be handled?

Confirm tooling, cut quality, hole position, edge distance and the compatible reseal system before fabrication. Clean and prepare the face according to the approved primer, paint, release or coating system. Reseal exposed cuts and drilled holes where the service environment requires it.

How should buyers compare HDO and MDO plywood prices?

Compare the overlay and face/back arrangement, core and lay-up, bond, size, actual thickness and tolerance, priming, edge work, machining, quantity, documents and packing. The page ranges use one 1220×2440×18 mm reference basis for a consistent comparison.

What to include in your enquiry

Surface result

Paint base / matte concrete / smooth concrete / industrial wear

Panel construction

Overlay / core / lay-up / bond

Fabrication & exposure

Cutting / edges / coating / moisture / cleaning

Documents & delivery

Method / dimensions / quantity / packing / destination

Plywood enquiry

Tell us what you need.

Choose HDO or MDO, or describe the surface result and we will recommend the suitable overlay. State end use, one/two-face and back arrangement, primed/unprimed coating system, core and lay-up, bond and exposure, size, thickness and tolerance, edge/cut/hole treatment, test/standard/document requirements, quantity, packing, destination and target date. Our team can recommend the suitable Incoterm for the destination and order volume.

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