iRS Integrated Rack Structure
Stackit’s IRS (Integrated Rack Structures) are at the forefront of optimization for New Zealand businesses, offering a seamless blend of storage efficiency and structural integrity. Designed to cater to diverse operational demands, our IRS solutions provide a cohesive system that integrates cantilever racking with a roof structure, allowing you to fully utilize your space. Being just one structure it offers a fast build time and no wasted space. The IRS is ideal for timber merchants, building supply centres and freight companies to enhance operational flow and capacity, these structures are customizable to fit specific business needs. Embrace the next generation of storage innovation with Stackit’s IRS, engineered for businesses focused on growth and efficiency.
Integrated Racking Products
The Stackit Integrated Rack Structure (IRS) is engineered to give your business a competitive edge. By merging the structural frame and racking into a single system, IRS offers clear advantages from day one.
Compared to a conventional build, an IRS is delivered much faster. With both structure and racking installed as one, total project time is dramatically reduced.
IRS solutions are also more budget-friendly. Rather than paying separately for a building and racking system, you receive a combined package that lowers your overall investment.
Flexibility is another key strength. The modular design means the system can be tailored to your exact requirements — and easily adapted or expanded as your needs grow.
Because IRS systems are surface-mounted, they’re ideal for changing circumstances — they can be relocated or removed entirely, making them perfect for leased sites or evolving operations.
RACK MOUNTED ROOFS
It is well recognised in the building supplies industry that up to 15 % timber wastage occurs through exposure to weather. The rack mounted roof structure provides a very cost effective shelter for storage of timber packs with excellent select-ability. The addition of infill PVC curtains between the posts gives further protection from prevailing winds. Available in either single or double sided configurations these covered racks are ideal for a site with a designedly limited life span. Being modular the solution is very flexible and can be added to as demand increases. Based on our Heavy duty Cantilever system the addition of the roof structure can be retro fitted to increase the net value of existing rack installations.
CANOPIES
Everyone needs more covered space and what better way to add value to your operation than with an IRS canopy. Combining clear span drive through customer experience and all weather functionality with high capacity and selectable pack storage. Double sided racks down both sides with overhanging roof are value engineered to form the structure of the canopy providing enormous added value by reducing waste/damage and increasing your operationally capacity. Being an open sided canopy fire rating is not generally required meaning you can potentially build up to 3m from a boundary. Mono pitch IRS canopies can be used as a free standing dry store or added alongside existing drive through buildings to create extra site value. Clear spans of up to 18m are possible enabling excellent Transport loading from both sides under cover. Typical internal heights are 5.5 to 7m with either 900 or 1200 posts spacings provided almost unlimited options to maximise your space. The modular system allows for future plans including the ability to relocate the whole structure should your plans require.
DESIGN BUILDS
The new generation of Building Supplies Stores dictate a lower percentage of warehouse and a higher percentage of canopy providing for a much higher site utilisation factor overall. In addition the IRS system now favoured amongst smart operators allows for a holistic, value engineered design releasing enormous benefits for store owners. Gone are the days when you had to compromise the shed design because of limitations with spans and generic manufacturers limitations. With IRS we go straight to the ultimate layout then engineer the complete package including Trade Store and Office Facilities. With an overall ‘best practice’ design agreed you then have the option of staging the project or moving ahead with a complete ‘turn key’ solution. We understand the key wining components of a successful Building Supplies operation and work with you to formulate a plan that gains you the business advantage. Walking you through a clear step by step process the logical value achieved with the IRS system will become illuminated making the decision to join the ‘smart operators’ simple.
IRS Features
Pack Support System
Use the pack support system to create a ‘floating shelf’, this is a great solution if you are storing pallets or odd sized product on the cantilever.
canvas infills
Our Rip-Stop Canvas Infills are a cost effective method of adding additional weather protection to your Rack Mounted Roof or Canopy.
Slip Pins
Slip pins help to keep your items securely stored. These devices prevent your items from sliding off the arms and are terrific for health and safety in your setting. Ask us about our safety features and ratings.
Post Spacing Options
Allow you to configure the rack to best suit your load requirements over a particular length.
Adjustable Arm Heights
Adjustable arm heights allow you to customize the height of the arms on your IRS, making it easy to store items of different sizes; just another great way that you can get the solution you need.
PROJECTS
Why invest in IRS
Efficiency? Maximise It.
The Integrated Rack Structure (IRS) is designed to maximise land use by creating covered storage for a lower investment than traditional construction methods. The IRS integrates both roof and racking into one engineered solution—delivering superior performance and longevity.
Productivity? Boost It.
A well-designed racking system like the IRS reduces the number of forklift movements needed to retrieve timber, creating a more streamlined and efficient yard layout. Increased selectability boosts productivity.
Customer Experience? Improve It.
An IRS system provides a covered area where your customers can easily retrieve their goods and secure their load, no matter the weather.
With the IRS, not only is your stock protected, but your yard flow is also improved—reducing congestion and creating a smoother, safer customer experience.
Business Advantage? Gain It.
IRS users have reported up to a 15% reduction in product damage. With our ROI tool, you can see exactly how investing in an IRS will benefit your bottom line—turning smart infrastructure into a competitive edge.
Why Choose STACKiT Storage Solutions
We’re proud to be the original designers of the IRS system in New Zealand. Over the years, we’ve refined every step of our process—from design through to completion—to make delivering an IRS solution as seamless as a click of your fingers.
At Stackit, the IRS has been engineered to deliver the highest value for your investment. We collaborate with you at every stage to ensure your solution is tailored to your needs, installed efficiently, and fully compliant with council requirements.
We don’t just design and build IRS systems—we work in one. Our own warehouse and office are built using the IRS system, so we experience the benefits every day. If you’d like to see an IRS in action, get in touch.
FAQ
The double sided rack mounted roofs have a central gutter and downpipe. The single sided racks have sufficient roofing overhang (over the back of the post) to allow the water to run off the roof without falling on the product so a gutter is not required.
The racks can be levelled using shims to ensure all posts are aligned to each other. It is most important to ensure the post structures are aligned and level in the cross aisle direction. The racks do not need to be exactly level in the down aisle direction. They are best to be built inline with the subsurface falls, in the down aisle direction to ensure the forklift is inline with the racks when loading product onto the racks.
4, 5 or 6m high posts are the most common sizes for rack mounted roofs.
The beauty of the IRS system is it is a modular system which caters very well to planned staged installs. It is no problem to add to the structure at a later date.
As the IRS canopy structures are considered an open sided structure there is no requirement for fire rating as long as the structure is greater than 3m from legal boundaries. If the boundary is a road boundary there is no fire rating required on a road boundary so the structure can be built closer than 3m to this boundary.
The IRS system is modular so the span can be adjusted to suit the exact requirements you need in order to achieve efficiency. Most common spans for timber yards is between 7-10m between the bases however spans of 15m + between the bases have been achieved on completed projects. It is important to note that most spans can be catered for by increasing the size of the portal spanning between the rack structures.
It is common for sites to have existing concrete slabs or pavements where they would like to situate an IRS. The IRS will require a engineered solution for the area under where the racks are situated – this likely means we would pour an additional footing above the existing pavement or digout the area under the racks and re-build this portion of foundation to ensure it has adequate strength to hold the structure. The balance of the pavement can be utilized as is – no need to re-build this area providing it is suitable for practical use.
Providing the structure is over 30m² the canopy will need a building consent. As the structures are simple in nature it means the consent process is also simple – our team can take care of this process.
Yes, offices can be built in/integrated into the super structure of the IRS system.
As per the acceptable solution if the IRS building is located more than 15m from legal boundaries no fire rating is required. If the building is positioned on a road boundary the 15m can be measured from the opposite side of the road often negating the need for fire rating on this portion of the build. It is simple for the IRS system to be used where fire rating is required, and the most common method is to utilize concrete tilt panels with the IRS structure sitting inside the tilt panel fire wall.
Yes – the IRS system provides a more cost-effective option to a traditional build methodology when you factor in the additional racking investment. Also utilizes space better as there is no waste space between the building structure and the rack structures. It is normal to have clearance between the structures which is a waste of space, and the IRS system removes this waste space as it combines both structures into one.