Altro Cavity Sliders

Altro Cavity Sliders are distinguished by their vast range of finishes and options. Our Cavity Sliders are made to suit 64mm, 76mm and 90mm stud wall thicknesses with just about any finish detail including flush set, shadow line and architrave.

Altro Cavity Sliders range consists of the Euro 64 designed for 64mm steel stud walls, the Euro 76 designed for 76mm steel stud wall and the Euro Cav Ultima which is our flagship model designed for 90/92mm wall thicknesses and large heavy doors. Our latest additions in our cavity slider range being the Euro 64 and Euro 76 still enjoy the vast range of finishes of the Euro Cav Ultima; however, they are only available for 2040mm high doors and up to 920mm in width for the Euro 64 and up to 2340mm high for the Euro 76.

The Euro Cavity Slider range is robust and is made from high tensile alloy for increased rigidity and strength and is noted for its unique features such as concealed carrier plate system and invisible “T” guides which makes it the obvious choice when specifying cavity sliders for projects that require a contemporary finish.

Altro EuroCav White Paper Download Link -Altro EuroCav White Paper

The key features of Altro Cavity Sliders are:
> Incorporates a precision, robust ball bearing carriage system, fully concealed providing minimal detail
> Focuses on elegant clean sharp lines
> High load bearing capacity
> Available with timber, aluminium or frameless glass doors
> Head track available in powder coat or clear anodise finish
> Choice of square set, architrave or shadow line finish

> Door cannot derail from track

The advantages of using Altro Cavity Sliders are:
> Space saving design
> Quick to install
> Short lead times
> No pelmets
> Custom made to suit your needs
> Concealed carriage design

> invisible “snap on” T guides

Create that much needed extra space by installing Altro Cavity Sliders and enjoy the range of finishing options and door solutions such as the DN80 VD concealed frameless glass door and the new Altro 38mm glazed aluminium door system.

Altro Cavity Sliders are designed for 35-40mm thick door leaves, however, 35mm is preferable. If 40mm doors are being used, Altro Building Systems must be consulted prior to fitting doors with flush pulls and door locks. Some flush pulls and locks are not suitable for use with 40mm doors in the Euro Cav system.



The Spatial Benefits of Cavity Sliding Doors

Practically speaking, cavity sliding doors make significantly more sense than their hinged counterparts wherever space is of concern. Hinged doors require space for both the door itself as well as the entire path of its rotation, while cavity sliding doors require “only a fraction of the space,” travelling either parallel to or simply into the wall itself, as with a cavity slider.[i] In fact, cavity sliders can save more than 85 per cent of floor space when compared to hinged doors – a substantial figure that can be easily translated to a spatial configuration that maximises the value of a space.[ii] When taking into account the number of replaceable doors in a large-scale residential or commercial project, this figure is especially significant.

Aside from clearing up additional space to be used as anything other than the oversized footprint of a hinged door, cavity sliding doors can also improve accessibility and democratic access to spaces. Not only is there minimised risk of opening a door into someone, or being unable to open it at all due to something being in the way, but cavity sliders are also easier for disabled users and those with reduced mobility to operate and navigate than swinging alternatives.

In domestic environments, cavity sliding doors can be applied in numerous different applications across the entire house, including bedrooms, bathrooms, laundry and walk in wardrobes, as well as between living spaces and even indoor and outdoor settings. With so many potential applications, “sliding hardware systems eliminate visual clutter while freeing up valuable space,” while also offering a more contemporary aesthetic for both residential and commercial settings.[iii]

The advantages of cavity sliding doors are not limited to commercial and residential applications either, with improved accessibility and decreased safety hazards also being valuable considerations within the healthcare sector. The ability to eliminate “dead” space is also incredibly useful within hospitality, such as in hotels, where tight spatial constraints are already standard practice, but where hinged doors are still seen as the accepted solution to the separation of rooms.[iv]

Using the same technology, sliding, folding and stacking walls can also be used to partition spaces. Partitioned rooms can be opened up to receive additional natural light or ventilation, or closed off to limit the energy needed to heat or cool a space. Power bills can be reduced by cordoning off living from sleeping areas, whilst still offering the potential for open plan living whenever otherwise suitable. In these instances, cavity sliding doors and walls can blur the boundaries between one space and the next, or even between inside and out.

The dynamic spatial opportunities offered by cavity sliding doors and their own design potential opens up new avenues for architects and designers. Cavity sliding doors “can be larger – taller, wider and heavier – than hinged doors” and can effectively remove entire walls when deployed, rather than simply provide an opening.[v] Doing so embodies greater potential to make a statement, whether it is formal or informal in nature.

The Make-Up of Cavity Sliding Doors

Whether top or bottom hung, cavity sliding doors require a number of separate elements that will allow them to function as intended. The primary elements include the wall or door panels, the trolley that allows for movement and the tracks along which they slide, as well as a number of secondary elements such as doorstops embedded into the track and surface guides.

In this day and age, cavity sliding door panels can be made of all manner of materials, including timber, glass, metal or otherwise, including any combination of materials. However, in large-scale applications such as in commercial or multi-residential environments, the materials chosen can have consequences for the functionality of sliding door systems.

This is applicable to cavity sliding door tracks too, which are equally as important for creating smooth movement as the trolley itself. Historically, sliding door systems would have been made from timber for its ease of construction. However, as technology has improved, alternative materials such as aluminium have made their name as long-lasting, efficient alternatives. In large-scale applications timber cavity sliders with steel tracks can come with a number of risks, namely associated with maintenance, longevity and material properties.

Timber cavity sliders are more likely to wear out over a shorter period of time and demand more upkeep. Furthermore, the characteristics of timber framed sliding door systems are inherently tied to their material properties. Timber is prone to warping in humid environments, and often the impacts of excessive exposure to moisture are only evident long after the damage has been done. This makes them additionally less suitable for exterior applications, where shifting temperatures are likely to have further impact on the effectiveness of the sliding system.

On the other hand, aluminium is significantly more appropriate for commercial applications and is typically the material from which commercial-grade sliding door systems are made. With aluminium systems, users do not need to worry about the downsides associated with timber such as warping and similar. Higher quality materials also reduce the amount of maintenance required, while increasing longevity and ensuring smoother, quieter operation over their timber counterparts. The dimensions and shape of aluminium sliding systems can be customised without worrying about weight or compromised quality, and standard options now exist that eliminate the potential for derailment of the door panels.


Altro Building Systems

Altro Building Systems are specialists in the design and manufacturing of sliding door systems and their respective components. Altro’s products include the options for customised design and manufacturing in order to meet any specification, and Altro always look to ensure short lead times so that projects can be completed on time and with consistency.

Most recently they have released the Euro Cav, an architecturally designed and Swiss engineered aluminium cavity sliding door system. With Euro Cav, the sliding door disappears into an existing wall cavity, completely out of sight. The Euro Cav track is designed to sit either within a jamb or finish flush with the ceiling, creating the smallest possible gap between door and ceiling.

Unlike domestic-grade timber sliding door systems, Euro Cav is unaffected by a maximum door weight of up to 60kg and nor is it limited in the door sizes available for installation. Rather, aluminium’s high load bearing capacity makes it ideal for large doors, made from a variety of materials. There is no limit to the configurations possible, with double doors meeting at 90-degree corners, bi-parting double doors and double and triple overtaking doors that stack inside a single cavity all being within the realm of possibility. Like any aluminium product, Altro’s Euro Cav range is completely recyclable at the product’s end of life.

Euro Cav provides an almost endless range of sizes and finishes, bringing a vast realm of flexible options to the architect involved.


“Cavity sliding doors can save more than 85 per cent of floor space when compared to hinged doors – a substantial figure that can be easily translated to a spatial configuration that maximises the value of a space, and is particularly significant when taking into account the number of replaceable doors on a large-scale residential or commercial project”

“Aluminium cavity sliders reduce the amount of maintenance required, while increasing longevity and ensuring smoother, quieter operation over their timber counterparts.”






Optional quick release carriage system available for Euro Cav Ultima cavity sliding doors. New innovation from Switzerland.