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Choosing a Panel Substrate

MR MDF, particleboard, lightweight plywood, block board or waterproof composite core? What each EGR Decor substrate is for, plus the carcass options.

TruNatur boards stacked to show their substrates

Substrates in the Australian range

The substrate is the board under the decorative face. It sets where a panel can go, as much as the face does.

TruNatur is made on more substrates than any other EGR collection. StyleLite comes on MR MDF, particleboard and waterproof composite core.

SubstrateCollectionsThicknessUse or notes
MR MDF, E0StyleLite, TruNatur16, 18, 25, 32mmKitchen and vanity doors, furniture, wardrobes, general cabinetry
Particleboard (E0 listed for StyleLite)StyleLite, TruNatur16mmDouble-sided panels, 2400 and 3600mm long
Plywood MR lightweight (Falcatta)TruNatur17mmCaravan and RV fit-outs, where weight matters
Block board lightweight (Falcatta)TruNatur38mmBeams, internal doors, floating shelves, timber screens
MDF, E0TruNatur5mm, 12mm; 18mm blackThin and black-core panels
MDF FR, E0, dark greyTruNatur12mmWall and ceiling lining and routed panels needing a fire-rated board
Waterproof composite coreStyleLite, TruNatur, StyleLex18mmFlood-prone and high-moisture areas; StyleLex for covered outdoor

MR MDF: the everyday core

EGR Decor MR MDF panels are made for cabinetry and interiors where durability, stability and surface performance matter. They suit kitchen and vanity doors, furniture, wardrobes and general cabinetry.

All are produced on MR MDF rated to formaldehyde emissions standard E0 or TSCA Title VI. Single-sided and double-sided configurations are available.

Waterproof composite core

The weatherproof composite core (WCC) replaces MDF where wet conditions would make MDF fail. It is 18mm thick at about 700 kg/m³, with 24-hour thickness swell of 1% or less.

It sits under StyleLite TruMatte and TruNatur for indoor wet areas, and under StyleLex for covered outdoor areas.

Waterproof carcass options

EGR offers three waterproof carcass boards. They trade off finish, rigidity and cost.

EGR's warranty treats carcass panels as internal use only, and they are not covered for UV exposure.

StyleLex ABS carcassStyleLex laminate carcassStyleLex WPC carcass (Essentials)
Thickness18mm16mm16mm
FaceABSLaminate (HPL)Extruded skin
CoreWeatherproof composite coreWeatherproof composite coreWaterproof core (WPC)
ColoursWhite, Light Grey, Dark Grey, BraunWhiteWhite
ApplicationCarcass or paintable doorsCarcass onlyCarcass only
Best forHigh-end cabinetry, designer kitchensMid-range cabinetryHigh-volume projects
Max shelf span and load600mm, 15–20kg800mm, 25–30kg600mm, up to 15kg

Balanced, double-sided panels

StyleLite and TruNatur panels are double-sided and balanced, so the panel stays flat. StyleLite sheet laminated in the workshop must always be balanced on the reverse of the substrate.

Questions people ask

Which EGR substrate is best for a caravan?

TruNatur on lightweight plywood suits caravan and RV fit-outs, where weight savings are preferred. In Australia it comes as 17mm Plywood MR Lightweight Falcatta.

Can MR MDF panels be used in a laundry?

Yes. EGR Decor presents its MR MDF panels, StyleLite and TruNatur, for laundry cabinetry. For flood-prone laundries, EGR Waterproof panels are the alternative.

What formaldehyde standard do EGR's MDF panels meet?

EGR Decor MR MDF panels are rated to formaldehyde emissions standard E0 or TSCA Title VI. Australian panels are listed as E0. US tables list TruNatur and some StyleLite panels as TSCA Title VI.

Which carcass should I use for an alfresco kitchen?

The StyleLex 16mm laminate carcass is listed for indoor and covered outdoor cabinetry, and gives the longest shelf spans. EGR's warranty treats carcass panels as internal use only, not covered for UV exposure.

Read next · GuidesPanels for Wet Areas and Covered Outdoor KitchensWhich EGR Decor panels suit bathrooms, laundries and covered outdoor kitchens: MR MDF, waterproof composite core, StyleLex and StyleLite MPP.