HMR MDF for furniture in humid interiors.

Choose HMR for humid interior furniture

Start with the furniture you are making and the moisture performance it needs. High Moisture Resistant MDF is our option for a higher specified moisture-performance requirement in protected humid interiors. It gives your workshop a sanded MDF core for painting, decorative facing and machining, with the grade and relevant result identified for the proposed supply. A useful upgrade connects a board property to the actual component requirement.

Our HMR construction uses a higher density schedule, more moisture-resistant resin and additive material, and tighter production-line control. Those inputs describe the construction. The reported moisture result describes the board's response under the stated test. Keep both with the product identity, nominal thickness and supplied condition when choosing between HMR and Moisture Resistant MDF.

For a bathroom vanity front, consider the room humidity, cleaning routine, routed detail, lower edge and fittings. For a cabinet side around a sink, add the plumbing openings, joints and any installation cuts. A suitably selected core and complete finish can serve a protected humid interior. Sustained water contact, standing water, immersion and exterior weather require a material and assembly specifically designed for that exposure. Choose around the real location and maintenance conditions.

HMR selection is useful where its documented performance meets a requirement that matters to your part. For a protected dry-interior component, review Raw MDF against its design. For a humid-interior component, compare the offered MR and HMR specifications and complete cost. Our bathroom furniture guidance helps connect the board to the installed furniture.

Compare MR and HMR under the same test conditions

Request two identifiable specifications and reports for the same comparison. Match nominal thickness, specimen preparation and conditioning, test method and edition, exposure conditions, measurement and reported property. Then place the actual MR result, actual HMR result and agreed requirement in separate columns of your purchasing record. A grade name alone supplies only part of that record.

Thickness swelling, cyclic moisture performance and moisture content answer different questions. The European Panel Federation property guide identifies EN 317 for thickness swelling and EN 321 for cyclic moisture assessment. Record the exposure duration and measurement conditions for swelling, and the treatment and post-treatment properties for a cyclic result. A percentage labelled only as moisture performance needs its measured property and method alongside it.

DIN Media identifies EN 322 as a moisture-content measurement method. That reading describes water within the board at the measured condition. It has its own use in receipt, storage and workshop preparation; it is a separate quantity from thickness swelling after exposure. Keep density and emission requirements separate as well. This makes the report comparison easier for purchasing, production and quality teams to use.

Use the edition stated in the actual report and project specification. Ask our team to confirm the proposed grade, covered thickness and documents against those requirements before order confirmation. The MR versus standard MDF guide explains the wider grade choice; this HMR page focuses on selecting the higher specified option for your component.

Choose thickness and density with the drawing

The HMR MDF range is 2–35 mm, with six listed full-sheet formats. Choose thickness around the part dimensions, span, support, hardware and machining. An 18 mm front, a supported cabinet side and a shelf need their respective drawings and loading or fitting requirements even when they use the same core. Share the actual part and assembly so the quotation covers the required material and preparation.

Our published density schedules below refer to the two core ranges. They help you plan mass, handling and machining. Density is mass per volume; moisture resistance is assessed through the relevant property and test. Treat the density schedule as one specification field alongside the actual MR/HMR grade and moisture data.

For example, 18 mm HMR is within the published 710–750 kg/m³ band. The nominal density of the offered board belongs in the quotation and sample record. Overlap between MR and HMR bands shows why a density value by itself leaves the moisture comparison incomplete. Use the matched test results to assess that property, then try the selected board with your tooling, fittings and finish.

The six formats are 1220 × 2440, 2100 × 2800, 1830 × 3660, 1830 × 2440, 2440 × 3660 and 1830 × 4200 mm. Confirm the selected thickness/format combination and quantity in the order. Our nominal ±0.1 mm tolerance concerns MDF board thickness, with measurement agreed. A decorative layer adds to finished-panel thickness; cut sizes, edge bands, profiles, holes and assembly dimensions each follow the separately agreed drawing and checks.

Carry protection through the complete panel

An HMR core and a finished face are two parts of the construction. Identify the face material or coating, bonding system where used, HMR core, reverse and perimeter treatment. Add routed areas, hardware holes and service openings. Agree which work is included in the supplied board or component and which work your workshop or installer completes.

The construction drawing above shows a schematic cabinet-side component with a plumbing opening. Face and reverse treatment, perimeter edges, the inside edge of the opening and a hardware hole are identified together. The coloured treatments indicate locations to specify; the actual materials, dimensions and process follow your drawing and finishing system. This is a construction guide, with each actual component receiving the detail suited to its use.

Broad-face finishing and cut-edge preparation can need different workshop steps. EPF's edge-finishing guidance discusses preparing exposed edges before the finish is completed. Use the actual coating, adhesive or edging supplier's instructions and a representative trial to establish compatibility, preparation and curing. Our MDF edge preparation guide helps describe those steps in the order.

For faced HMR MDF, specify both the visible face and reverse. For painted parts, include reverse, edges and profiles in the coating plan. Cutting or drilling later exposes new core material; record its final treatment with the workshop or installation operation. Keep the lower-edge clearance and joint details with the complete design, especially near plumbing, cleaning water and appliance interfaces.

Try a sample and plan repeat orders

Begin with an identified HMR board sample, then prepare a representative finished part. Record the product/grade, nominal thickness, offered density, document references, drawing revision and supplied state. Include the narrowest routed detail, exposed edge, fitting or opening that matters to your component. A flat swatch establishes only some of the finish information needed for production.

Try the actual cutters and hardware, edge treatment, facing or coating system and assembly. Record the preparation and finish materials, relevant application and cure instructions, coverage, dimensions and fitting observations. Compare appearance using the agreed colour/texture reference and viewing conditions. A finished trial establishes a useful production reference, while the matching laboratory data describes the tested board property. Keep both with the order.

For an MR/HMR component comparison, use the same drawing, support, hardware, finish and evaluation conditions, identifying the actual core in each trial. Agree the property and method if a further performance test is required. Workshop soaking, handling or appearance observations have their stated conditions; standard test results come from the specified procedure and covered specimens. This keeps decisions traceable when another batch or finish is requested.

Keep HMR boards supported flat and protected during transport and covered storage. Prepare them for the workshop environment before machining and finishing, and identify any receipt-condition issue with the pack and batch. The moisture content, storage and conditioning guide helps organize these checks. Our CNC MDF Processing service covers drawing-defined cuts, holes and profiles for the chosen core.

Request a complete HMR MDF quotation

Send the component and indoor exposure, thickness, sizes, quantities and destination. Add the grade or moisture-property requirement, method and edition, applicable limit and product documents you need. For a prepared component, include part IDs, drawings, facing or paint specification, reverse, edge treatment and the work completed before delivery. We can quote full boards for your production or agreed machined parts from our factory in Shuyang, Jiangsu, China.

The published HMR MDF price range is US$230–350/m³. Your formal quotation identifies the actual grade, dimensions, density, supplied condition and quantity, with price/currency, processing, packaging, FOB Qingdao or FOB Lianyungang, lead time, T/T or LC conditions and validity. Compare complete specifications and included services when assessing MR and HMR prices.

We reply within 12 hours. All samples are available to request free of charge and generally in stock. You cover the courier cost, which can be credited against a formal order. We confirm the selected sample, any machining or finishing preparation, dispatch and estimated transit time for your address. Request its matching product information with the sample so your team can evaluate the board and construction together.

Normal MOQ is 1 × 20'GP per individual specification. MDF board production capacity is 500 m³ per day across the factory; the schedule for the chosen HMR grade and further processing is confirmed with the order. Normal production lead time is 3–10 days after specification and commercial confirmation. Third-party inspection is supported. Shipments use Lianyungang or Qingdao, with container quantity based on board dimensions, density and protective packing. Keep the agreed grade, documents, finish, drawings and packing reference for repeat supply.