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Fibre Cement

Hardie™ Secura™ Interior Flooring

Internal bathroom or dry area flooring made easy.

Hardie™ Secura™ Interior Flooring

Sizes and codes

CodeThicknessWidthLengthCover m²kg/m²Pack kg Stock
40355019mm900mm1800mm1.6224.5793.8 In stock
40417319mm600mm2700mm1.6224.5793.8 In stock
40469122mm600mm2400mm1.4428.8705.6 In stock

3 sizes. Ask the counter if you need one that is not listed.

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:

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.

  • 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.
  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

FAQ

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 Specifications

Product CodeLength (mm)Width (mm)Thickness (mm)Edge ColourSurface TextureJoist CentresEffective 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

Scroll the table sideways to see every column.

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