Hardie™ Secura™ Interior Flooring

Internal bathroom or dry area flooring made easy.

Product Details

Scyon Secura™ interior flooring is a durable fibre cement sheet for wet areas (like bathrooms and laundries) and dry rooms (like bedrooms). It’s lightweight, versatile, and designed as a dual-surface solution: one face suits tiled finishes and includes a sealant gap, while the reverse face is suitable for vinyl or carpet where a gapless tongue-and-groove joint is preferred.

Secura sheets are sealed on all sides with a moisture-resistant sealer, reducing moisture penetration and removing the need for waterproofing outside enclosed shower areas (always confirm your project’s wet-area compliance requirements). The sheets can be exposed to the elements for up to 3 months without warping, twisting, or requiring sanding. Tongue-and-groove edges support a quick, secure join and minimise the need for additional underlay under vinyl applications.

Best for


Hardie™ Secura interior flooring is ideal when you need a stable, moisture-tolerant substrate that supports both tiled and resilient floor finishes.

Best for:

  • Wet areas such as bathrooms and laundries, where moisture resistance matters most.
  • Dry internal rooms where you want a durable structural flooring sheet under vinyl, carpet, or tiles.
  • Tiled floors where you want to avoid underlay build-up and reduce height transitions between adjoining finishes.
  • Builds where simplified waterproofing outside enclosed shower areas is desirable (subject to compliance requirements).
  • Projects that may experience weather exposure during construction delays (up to 3 months exposure stated).
  • Customers wanting long-term durability and manufacturer-backed performance.

Selecting the Best Type of Product
Choose the right Secura sheet based on three things: where it’s being used, what finish is going on top, and the thickness your project requires.

  1. Where it’s being used
    • Wet areas: prioritise the moisture-sealed flooring sheet intended for bathrooms and laundries.
    • Dry areas: use the same structural flooring substrate for bedrooms and living spaces when you want a tougher base than standard flooring options.
    • Interior vs exterior: confirm you’re ordering the correct product for your application—Secura variants differ by use case.
  2. What finish is going on top
    • Tiles: designed so tiles can be applied directly without underlay, helping reduce floor height build-up.
    • Vinyl or carpet: the reverse face is suited to resilient finishes and is designed around a gapless tongue-and-groove joint style.
    • Mixed finishes: if your project transitions from tile to vinyl/carpet, selecting a direct-fix substrate helps keep levels more consistent.
  3. Thickness and format
    If you stock multiple thicknesses (e.g., 19mm and 22mm), choose based on the project’s stiffness and structural requirements. Match sheet selection to the engineer/specifier’s design and your framing/floor system requirements.

What to tell us for a fast quote


• Application: interior wet area or interior dry area
• Finish: tiles, vinyl, carpet, or mixed finishes
• Preferred thickness: 19mm or 22mm (if applicable)
• Approx. m² and delivery suburb

Hardie™ Secura interior fibre cement flooring sheet with tongue-and-groove edge profile close-up

What is Hardie™ Secura Flooring?

It’s a durable, lightweight structural fibre cement flooring sheet designed for use over timber or steel floor joists and positioned as an ideal wet area flooring solution.

Why is it recommended for wet areas?

It’s resistant to moisture damage and includes a moisture-resistant surface sealer that helps reduce moisture penetration—so water beads on the surface rather than soaking in.

Do I need full-floor waterproofing everywhere?

James Hardie states the surface sealer removes the need for full floor waterproofing outside enclosed shower areas. Always confirm wet area compliance requirements for your specific project.

Can tiles go directly onto Hardie™ Secura?

Yes—James Hardie states tiles can be applied directly without underlay, which helps reduce noticeable height differences between floor finishes.

What if the sheets get weather exposure during construction?

James Hardie states Secura can be exposed to the elements for up to 3 months without warping or twisting.

Product CodeLength (mm)Width (mm)Thickness (mm)Edge
Colour
Surface TextureJoist
Centres
Effective Cover Per Unit (m2)Effective Width (mm)Coverage Per Pack (m2)Mass (kg/m2)Weight Per UnitPack Weight (kg)
403550180090019WhiteSmooth4501.6290032.424.539.69793.8
404173270060019WhiteSmooth4501.6260032.424.539.69793.8
404691240060022Dark GreySmooth6001.4460028.828.835.28705.6
Perth's Plasterboard Experts
Request a free Quote from our Experts
Quote Request

View the rest of our Range of Fibre cement


Hardie™ Fine Texture Cladding

The beauty of clean lines and a modern look

ExoTec Façade™ Panel and System

The beauty of clean lines and a modern look

Axon™ Cladding

Bring drama and detail to your walls with vertical lines.

Matrix™ Cladding

Create your own clean contemporary look.

Stria™ Cladding

Clean lines to suit modern designs.

Hardie™ Tex Base Sheet

The original blue board for fibre cement rendered walls.

Linea™ Weatherboard

The original blue board for fibre cement rendered walls.

Hardie™ Panel Compressed Sheet

Compressed Fibre Cement structural floor substrate.

Hardie™ Groove Lining

The durable and elegant vertical joint (VJ) sheet panels.

James Hardie Villaboard fibre cement interior lining

Villaboard™ Lining

The standard in bathroom wall sheeting for 50 years.

Hardie™ Versilux™ Lining

A square edge sheet ideal for geometric designed soffits.

Hardie™ Brushed Concrete Cladding

The beauty of clean lines and a modern look

Hardie Oblique fibre cement cladding exterior project

Hardie™ Oblique™ Cladding

The beauty of clean lines and a modern look

Hardie™ Secura™ Interior Flooring

Compressed Fibre Cement structural floor substrate.

Secura™ Exterior Flooring

Compressed Fibre Cement structural floor substrate.

EasyLap™ Panel

The beauty of clean lines and a modern look

Hardie™ Flex Sheet

The beauty of clean lines and a modern look

Hardie™ Deck

The beauty of clean lines and a modern look

View the rest of our Range of plasterboards


Gyprock PLUS ™

Standard plasterboard doesn’t get better than this – ideal for use on walls and ceilings in residential environments, Gyprock Plus features Optimised Core technology, making it stronger and lighter with significantly improved board handling.

SUPACEIL™

Gyprock Supaceil stands above the rest when it comes to plasterboard in ceilings. Optimised Core technology provides significantly improved strength, handling, and performance in this lightweight 10mm thick plasterboard.

Sensitive

Make a healthy choice with Gyprock Sensitive. This moisture resistant wall and ceiling plasterboard contains powerful antifungal properties to resist mould and mildew making it the ideal choice for wet areas and the homes of asthma and allergy sufferers.

Gyprock Soundchek plasterboard sheets

Soundchek ™

Gyprock Soundchek provides sound control worth shouting about. This high density gypsum plasterboard has improved sound transmission properties to help maintain the peace when used in residential and commercial walls and ceilings.

Standard 13mm

This board sets the Standard for commercial applications. Gyprock Standard 13mm works as a general internal wall and ceiling lining in a huge range of commercial applications.

Impactchek ™

Bustling household or commercial environment? Gyprock Impactchek is a high-strength 13mm thick plasterboard with a reinforced core that is an ideal wall lining for high impact areas.

Gyprock Fyrchek fire rated plasterboard sheets

Fyrchek™

Gyprock Fyrchek has been developed to take the heat. Fyrchek’s specially processed glass fibre-reinforced gypsum core makes it ideal for use in fire rated wall and ceiling systems and where improved acoustic performance is required.

Gyprock Fyrchek MR fire and moisture resistant plasterboard sheets

Fyrchek™* MR

Gyprock Fyrchek MR combines a fire and acoustic grade board with additional moisture resistance to create the ideal lining for fire rated wall and ceiling systems in wet areas.

ECO8™ Extreme

For internal linings where the highest impact resistance is critical in a multi-attribute board, such as Health Care projects especially Mental Health Facilities, as well as Correctional Facilities, Sporting Facilities, Schools and Hotels.

ECO8™ Complete

Complete by name and Complete by nature: for commercial environments, this ultimate plasterboard is specifically engineered to meet the highest standards across a broad range of performance requirements.

Gyprock Aquachek plasterboard sheets

Aquachek™

The blue board for wet areas — moisture-resistant plasterboard for residential and commercial bathrooms, laundries, and soffits that meets BCA […]

Shaft Liner MP

Gyprock Shaft Liner MP provides enhanced protection against mould growth for extra peace of mind during the early stages of construction.

Flexible plasterboard sheets for curved walls and ceilings

Flexible

Designed to impress, Gyprock Flexible 6.5mm plasterboard enables specifiers, designers and installers to easily create curved walls and ceilings and add visual interest to a space.

Perforated Board and Accessories

Gyptone ™ 12mm Square

Enhanced acoustics and style are the hallmarks of Gyptone 12mm Square perforated plasterboard. This superior acoustic solution delivers a grid-format geometric effect plus enhanced air quality thanks to patented Activ’Air technology.

Gyptone ™ 12mm Square Minigrid

Superior acoustics and subtle style make Gyptone 12mm Square Minigrid an intelligent choice to help control reverberation in public spaces with the added benefit of enhanced air quality with patented Activ’Air technology.

Gyptone ™ Slotted Minigrid

Achieve impressive acoustic control with Gyptone Slotted Minigrid. Combining a modern geometric pattern with a 13% open area, Gyptone Slotted Minigrid provides impressive levels of sound attenuation to match its good looks.

Gyptone™ 12mm Hexagon

Enhanced acoustics and style are the hallmarks of Gyptone 12mm Hexagon perforated plasterboard. This superior acoustic solution delivers a grid-format geometric effect plus enhanced air quality thanks to patented Activ’Air technology.

Gyptone™ 12mm Hexagon Longboard

Superior acoustics and subtle style make Gyptone 12mm Hexagon Longboard an intelligent choice to help control reverberation in public spaces with the added benefit of enhanced air quality with patented Activ’Air technology.

Gyptone™ 12mm Square Longboard

Superior acoustics and subtle style make Gyptone 12mm Square Longboard an intelligent choice to help control reverberation in public spaces with the added benefit of enhanced air quality with patented Activ’Air technology.

Gyptone™ 12mm Square Grid

Superior acoustics and subtle style make Gyptone 12mm Square Grid an intelligent choice to help control reverberation in public spaces with the added benefit of enhanced air quality with patented Activ’Air technology.

Gyptone ™ Slotted Longboard

Superior acoustics and subtle style make Gyptone Slotted Longboard an intelligent choice to help control reverberation in public spaces with the added benefit of enhanced air quality with patented Activ’Air technology.

Rigitone™ Matrix 8mm Round

Deliver an aesthetic impact and significantly improve acoustics with Rigitone Matrix 8mm Round. The edge-to-edge pattern layout, unique installation method and benefits of Activ'Air make Rigitone a superior option.

Rigitone™ Astral

Modern seamless design, enhanced acoustic performance and improved air quality thanks to Activ’Air will make Rigitone Astral the star of any project.

Rigitone™ Matrix 12mm Square

With a 23% open area Rigitone Matrix 12mm Square combines exceptional acoustic performance with modern monolithic design thanks to it's edge-to-edge perforation layout and unique installation method.

Rigitone™ Galaxy

Rigitone Galaxy’s seamless intricate pattern and acoustic performance is universally appealing to provide sound control and an arresting aesthetic in public areas in commercial buildings.

Rigitone™ Matrix 12mm Round

With a 18.1% open area, Rigitone Matrix 12mm Round combines superior acoustic performance with modern design, creating the ultimate ceiling solution for commercial applications.

Rigitone™ Matrix 15mm Round

Deliver an aesthetic impact and significantly improve acoustics with Rigitone Matrix 15mm Round. The edge-to-edge pattern layout, unique installation method and benefits of Activ’Air make Rigitone a superior option.

Rigitone ™™ Matrix 8mm Square

With a 19.8% open area Rigitone Matrix 8mm Square combines exceptional acoustic performance with modern monolithic design thanks to it’s edge-to-edge perforation layout and unique installation method.

Rigitone ™ Matrix 10mm Round

Deliver an aesthetic impact and significantly improve acoustics with Rigitone Matrix 10mm Round. The edge-to-edge pattern layout, unique installation method and benefits of Activ’Air make Rigitone a superior option.

Rigitone™ Jointing System

The unique, seamless finish of Rigitone is made possible by the use of a specialised primer, filler and installation tools.

Gyptone ™ Access Panels

To ensure a seamless look Gyptone Access Panels blend almost imperceptibly into the ceiling with a perforation pattern that matches each of the Gyptone boards.

Rigitone™ Access Panels

To maintain an almost seamless look Rigitone Access Panels blend almost imperceptibly into the ceiling with a perforation pattern that matches each of the Rigitone boards.

PERTH'S FIBRE CEMENT EXPERTS | Request a free Quote from our Experts

crossmenu linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram