Thick MDF boards in 19–35 mm for furniture and routing.

Choose the blank around the finished profile

A substantial furniture part starts with enough material for its shape. Thick MDF Board gives you a deeper blank for routed profiles, broad edges, display bases and other drawing-defined interior components. Choose the thickness with the finished section, support and connection, then check a representative machined part. That connects the board you order to the component your team wants to repeat.

CUZI MDF manufactures and supplies 19–35 mm Thick MDF Board from our factory in Shuyang, Jiangsu, China. Our thickness choices include 25 mm, 30 mm and 35 mm within that range, with a published density schedule of 650–680 kg/m³. Order input sheets for your workshop or send current drawings for cut and machined parts. We connect the blank, operations, finish and handling in one quotation.

The useful thickness depends on the completed part. A broad blank can contain thin areas after routing; a heavy counter can still need intermediate support. Keep those details in the design and sample record. A full-face sheet, a shaped part and an assembled fixture reach different stages of preparation and have their respective acceptance requirements.

Raw MDF covers the wider 2–35 mm range and general sheet-size/thickness purchasing, including 25 mm and 30 mm requests. This page focuses on substantial components, deep machining and weight-aware handling. Our CNC MDF Processing service covers drawing-defined operations, while Thin MDF Board addresses supported thinner components and flat skins.

Map the section remaining after every operation

Supply front, reverse and section views with the same datums. Mark the deepest face profile, reverse recesses, through-holes, countersinks, connector pockets, outside edges and narrow lands. At each relevant location, identify the original core thickness and the local material remaining after all intersecting operations. This gives tooling, finishing and assembly teams the same component reference.

For one-sided routing measured from the original core face, nominal remaining section R = T − d. With a 25 mm core and an 8 mm-deep cut, R = 25 − 8 = 17 mm. This is a geometry calculation; the part design, core properties, local shape, support and loading establish whether that section meets its intended use.

Where opposing cuts overlap, account for both depths at that location. In the diagram's nominal 30 mm core example, a 12 mm front cut and an 8 mm reverse recess overlap to leave R = 30 − 12 − 8 = 10 mm. At locations reached by only the front cut, the remaining core is 18 mm; where only the reverse cut reaches, it is 22 mm. The drawing's cut positions establish which calculation applies.

These dimensions are explicit design examples, with actual profile depths, minimum remaining sections, tolerances and tooling qualified for the component. Include the smallest lands and areas around holes as well as the broad remaining thickness. A pocket near an edge or another cut can create a different connection from the original full blank.

The European Panel Federation routing guide discusses MDF routing, tooling and cutting conditions. The selected core, tool, profile, machine support and process trial establish our order's machining plan. Agree the actual pass strategy, workholding, datum, edge preparation and inspection points with the representative first part. Cutting settings follow the qualified operation and equipment.

Compare thickness and weight using the same inputs

For the same bare sheet, increasing thickness changes the nominal volume and mass. Use dimensions in metres with density in kg/m³: mass = length × width × thickness × density. The table uses 1220 × 2440 mm sheets and our 19–35 mm density band of 650–680 kg/m³. The results are calculated net core weights, before facing, finishing or packaging.

For the 25 mm example, 1.22 × 2.44 × 0.025 = 0.07442 m³, and multiplying by 650–680 gives 48.373–50.6056 kg before rounding. At the same density and format, the 30 mm blank has 30/25 = 1.2 times the 25 mm blank's nominal mass. This describes the input sheet. Routing removes material; completed layers and hardware add their respective mass to the finished part.

As a stack-planning example, 20 bare 25 mm sheets at those dimensions and density inputs give approximately 967.46–1012.11 kg of net core mass. Twenty sheets is an illustrative count, with actual bundle quantity agreed for the order. Gross handling weight includes cover boards, pallet/supports, wrapping, inserts where used and other packing. Identify the complete pack dimensions, gross mass and lifting arrangement for receiving and unloading.

The six listed input formats are 1220 × 2440 mm, 2100 × 2800 mm, 1830 × 3660 mm, 1830 × 2440 mm, 2440 × 3660 mm and 1830 × 4200 mm. Confirm the selected thickness/format, supplied condition and quantity in the quotation. Larger sheets need their own nesting, machine and handling plan. Use the MDF sheet-weight calculator with the actual order inputs.

Nominal core thickness tolerance is ±0.1 mm, with the measuring and acceptance method agreed. Finished dimensions, profiles, holes and flatness checks have their respective conditions and tolerances. Density is thickness-specific material data; the mechanical properties and complete component assessment address separate performance requirements. Our density guide explains that purchasing distinction.

Select support and hardware for the machined component

A component's loading passes through its section and connections into the supporting furniture or fixture. State clear spans in both directions, support positions, retained contact areas, fixings, expected loads and service conditions. Identify concentrated loading, openings and unsupported projections with the drawing. The responsible designer establishes the complete component's permitted use, with the applicable assessment or test.

Choose a screw or connector with the actual local section it engages. A fitting entering a full-depth edge has a different situation from one entering the wall of a routed pocket. Specify pilot holes, recesses, insertion direction, fastener length, distances to edges and the manufacturer's preparation instructions. Keep holes and profiles on coordinated drawings so the remaining material is visible to the machining and assembly teams.

The EPF screwing guidance discusses screw selection, pilot preparation and positioning in MDF. Those are useful planning topics; use the selected fitting's instructions and a representative connection trial to agree the actual details. The final connection or loading requirement follows the specified assembly and assessment. Our drilling and hardware guide helps prepare that request.

For a substantial furniture part, retain the section, core identity, finished surface and support/connection details with the sample. Check the required stability, deflection, fit and other agreed service criteria on the actual component or assembly. Board thickness gives the drawing a starting dimension; the design and its applicable results establish the supported use.

Carry the finish through profiles, edges and reverse

Smooth sanded faces provide a base for painting, veneering, laminating or other compatible finishing. Deep routing creates exposed walls, floors, shaped edges and narrow details with their own preparation needs. Agree the supplied machining/sanding state and finish through those areas, including the reverse and any new cuts after delivery. A representative profiled part connects the shape to the final appearance.

Identify the coating or facing material, adhesive where used, visible face and reverse construction, colours, texture/gloss and edge detail. For paint, retain the actual preparation, sealer/primer and coating system with the sample. For veneering or lamination, include the balance, profile compatibility and bonding/pressing conditions. Paint Grade MDF, Veneered MDF and HPL MDF describe their respective finished-surface requests.

A single thick MDF board and a bonded-up body describe different constructions. Our listed 19–35 mm range identifies the single input board. For a built-up component, specify each input layer, adhesive/bond line, pressing, finished thickness, edges and machining across the interfaces. The construction, weight and relevant performance documents follow that actual assembled body and its qualification. Laminated MDF identifies the decorative face construction described on that page; a thickness-building bond needs its own layer and process specification.

Keep core thickness and finished component thickness separate when recording dimensions. Face layers, reverse layers, bond lines, material removed by sanding and machined profiles affect their respective measuring references. Agree where the final dimensions are checked and what the assembly needs to accommodate. Retain the completed sample and process references for repeat production.

Standard Thick MDF on this page serves protected dry interiors. Humid indoor uses follow the selected Moisture Resistant MDF or High Moisture Resistant MDF construction and complete finish, with actual thick-board specifications agreed. Required fire or other classified performance belongs with the applicable product or full construction documents. Specify the room, cleaning, interfaces and finished part with the core request.

Plan the first part, packing and written quotation

Bring the material and drawing into the same first-part check. Record core grade, thickness/density, board format, drawing revision, datums, deepest front/reverse cuts and remaining sections at their relevant locations. Add fitting references, support, finished dimensions, profile appearance and finishing process. An actual connection or supported-assembly trial gives your team a useful repeat reference.

Keep thick sheets and machined parts supported flat in covered, suitable storage and during line-side movement. Protect exposed profiles, narrow lands, faces, edges and corners with clean appropriate separators and supported packs. Pallet/bearer layout, bundle height, fork access, lifting points and equipment follow the actual dimensions and gross weights. Packaging quantities and lifting methods belong in the order, making the handover clearer for the receiving team.

EPF handling and storage guidance discusses horizontal support, bearer alignment and suitable storage. Use the actual thick-board format, bundle and workshop conditions to plan support and conditioning. The pre-shipment checklist connects quantity, dimensions, condition, packaging and documents to the dispatch checks.

Request sheets or drawing-defined components with thickness, dimensions, quantities and destination first. Add core/density, emission standard, finishing stage, front/reverse files, deepest cuts, remaining material, hardware and support. Our Cut-to-Size MDF and CNC service connect the part list to the operations. Agree sample/inspection scope and packing with the same request so the quoted stages match what your workshop receives.

Samples can be requested for all our products free of charge and are generally in stock. The buyer pays the courier cost, which can be credited against a formal order. We confirm availability, dispatch and estimated transit time for your address. We will give you a preparation date for a custom machined or finished sample. We reply to inquiries within 12 hours, and can help arrange access for your third-party inspector.

FOB China price: US$158–219/m³ for Thick MDF Board. Compare the same thickness, density, format, grade, supplied condition, quantity and packing, with machining and finishing listed as applicable. Normal MOQ is 1 × 20'GP per specification, and normal lead time is 3–10 days after specification and commercial confirmation. Additional operations follow the written schedule. MDF board production capacity is 500 m³ per day across the factory; deep machining and finished-part output follow the ordered geometry and stages.

The written quote includes specification, supplied condition, quantity, price/currency, packaging, FOB Qingdao or FOB Lianyungang, lead time, T/T or LC payment terms and validity. Shipments use Lianyungang or Qingdao. Actual loading quantity follows dimensions, density and packing, with gross weights and handling information confirmed for the shipment. Share the profile you plan to make and we will help organize the thick blank, first part and repeat supply around it.