A warehouse manager knows a vertical carousel could free up floor space and cut down on manual picking. But before anything gets signed off, finance wants one number: when do we get our money back? That’s what a vertical carousel ROI calculator is for. It’s not a single magic figure — it’s a simple method you can run with your own costs. You can try it yourself further down this page.
Quick answer:
To work out the ROI of a vertical carousel, add up the total investment. Then estimate the yearly labour, space and error savings. Subtract your running costs to get the net benefit. Divide the investment by that net benefit to get your payback period. Turn it into a percentage to get ROI.
The purchase price is only one part of the sum. The real answer comes from weighing the total investment against three things you can measure: labour savings, space savings and error reduction. Throughput and safety gains matter too, but they’re harder to turn into a dollar figure, so we’ll deal with them on their own.
Two terms get used interchangeably in these talks, but they’re not the same thing.
Payback period is how long it takes for an investment’s savings to cover its cost.
ROI is how much return that investment brings in, compared to what you spent.
Payback tells you how fast you get your money back. ROI tells you how much you gain once you have it back. For a first-pass business case, payback is usually the number that gets a project past the finance team. It’s a simple, useful first check, since it shows the time you’ll wait before the system pays for itself.
The basic formula:
Payback period = Total investment ÷ Annual net savings
“Net savings” is the key phrase here. It’s not just what you save on labour or space. It’s what’s left once you take out the yearly cost of running the automation, such as upkeep, software and power. Skip that step, and your payback period will look better than it really is.
This calculation matters to more than just the warehouse manager. CFOs want proof that money is being spent well. Operations and supply chain managers want the numbers to hold up in daily use. Business owners want a plain answer, not a spreadsheet full of guesses no one can explain.
Here’s the full method, broken into steps. Follow along by hand, or use the calculator below to enter your own numbers.
Start with everything the project will cost upfront:
Equipment + installation + integration + facility work + training
Our 2026 vertical carousel pricing guide gives a sense of what the equipment side of this sum looks like.
A goods-to-person system, which is how a vertical carousel works, brings stock to the operator. Staff no longer walk, search and reach for it themselves. That travel and search time is usually the biggest slice of manual picking labour. So it’s also the biggest source of savings.
Current annual labour cost − expected future labour cost = annual labour saving
Say four staff spend most of their day on manual picking. Automation is expected to cut the labour hours this task needs. Multiply the current labour cost by that expected cut, and you get your labour saving.
Use the fully loaded cost, not just the hourly wage. Add superannuation, leave, payroll costs, recruitment, training and any overtime on top of base pay. Under the Storage Services and Wholesale Award (MA000084), the Fair Work Ombudsman lists a Level 1 storeworker’s base rate as $27.08 an hour from 1 July 2026. Once you add the extras above, the real cost to the business usually sits well above that figure. Use your own payroll numbers for a correct result. Award rates are a starting point, not a stand-in for your real costs.
This is often the strongest part of the case for Sydney operators, because industrial space here isn’t cheap. Cushman & Wakefield puts average prime industrial rent in Sydney at around $271 per square metre. Listings across western Sydney areas such as Erskine Park and Greystanes often sit between $150 and $220 per square metre, depending on quality and location. Every square metre a vertical carousel frees up has a real, calculable value.
Vertical Carousels Australia’s systems can save up to 80% of floor space compared with static shelving. That’s a ceiling, not an average — your own result depends on ceiling height, what you store, your current shelving layout, the access space the system needs, and how it’s laid out.
Floor space recovered × annual value per square metre = potential annual space saving
Say automation frees up 100 m² and you value that space at $200 per square metre a year — that’s $20,000 a year. One thing worth being upfront about: if you’re not actually dodging a rent rise or an expansion cost, this isn’t guaranteed cash in the bank. It’s more fair to call it an avoided or delayed facility cost. Still worth having, just a different kind of value.
Picking errors cost money in ways that don’t always show up as one line item: returns, re-picks, re-shipping, time on customer service, stock gaps, and write-offs.
Number of errors × average cost per error = annual error-related cost
Current error cost − expected future error cost = annual saving
Some industry sources put mispick costs at around $100 per error, though this figure hasn’t been checked for the Australian market. Treat it as a starting guess, and swap in your own numbers from your returns and re-pick data where you can.
Add up what it will cost each year to run the new system: upkeep, software, power and support. This is the step people most often skip. It’s also the one that makes the biggest difference to how honest your final number is.
Once you have your total investment and your net annual benefit, you can work out both figures.
Payback period = Total investment ÷ Annual net benefit
ROI (%) = (Total financial benefit − Total investment) ÷ Total investment × 100
These are simple versions of both formulas. They’re the right tool for a first-pass business case. For larger, multi-year projects, finance teams sometimes also use net present value (NPV) or internal rate of return (IRR). These account for the way money loses value over time. They’re a different calculation, worth a mention if you’re presenting to a finance team, but you don’t need them for a useful first estimate.
Your result is only as good as the numbers you put in. Where you can, use your real labour costs, your real space costs, your real picking volumes and your real error data. Treat industry figures, including the ones on this page, as a starting point rather than a promise. The more of your own numbers you use, the more you can trust the result.
Here’s what a vertical carousel ROI calculator looks like in practice. For this example, assume a Sydney warehouse with the figures below. These are made-up numbers for demonstration, not a real customer’s data.
| ROI input | Current cost/value | After automation | Annual benefit |
|---|---|---|---|
| Picking labour | $180,000 | $110,000 | $70,000 |
| Warehouse space (100m² freed) | — | — | $20,000 |
| Picking errors | $18,000 | $6,000 | $12,000 |
| Maintenance, software and energy | — | $15,000 | −$15,000 |
| Net annual benefit | $87,000 | ||
Total investment (equipment, installation, integration, training, facility work): $220,000
Payback = $220,000 ÷ $87,000 = 2.5 years, or roughly 30 months
Now let’s add the ROI numbers that payback alone doesn’t show:
First-year simple ROI = ($87,000 − $220,000) ÷ $220,000 × 100 = −60.5%
That negative figure looks alarming at first. But it makes an important point: a project can have a solid 2.5-year payback while still showing a loss in year one. That’s just because the upfront cost hasn’t been paid off yet. First-year ROI on its own isn’t the number to judge a project by. Look further out instead:
Change any one input, and this whole picture shifts. A higher labour cost, a cheaper lease, a lower starting error rate: all of it moves the numbers. That’s the point of running the calculation yourself, rather than trusting one published average.
There’s no single “normal” payback period for warehouse automation — it depends on your operation.
Fast payback: high labour costs, pricey floor space and high picking volume all push payback down. A Sydney business paying a premium for warehouse space, with a lot of daily picks and high staff costs, is a strong candidate for a quick return.
Slow payback: low labour costs, cheap space and light picking volume all push payback out. A regional site with room to spare and modest picking activity may take longer to see the same result, even with the exact same gear.
System cost, shift patterns, stock type, how hard the integration is, facility changes and how the project is paid for all shape the outcome too. Same technology, different warehouse, different number.
Any vertical carousel ROI calculator is only a starting point — ranges reported across the industry give a useful benchmark to test your own numbers against.
| Automation type | Indicative payback range |
|---|---|
| Vertical carousels / VLMs | ~6–18 months |
| AMR / goods-to-person systems | ~1–3 years |
| Larger ASRS / shuttle projects | ~2–5 years |
These are industry-reported ranges, not guarantees, though Modula, which makes vertical lift modules and horizontal carousels, reports that most of its customers reach ROI within six to eighteen months. That’s on the fast end of warehouse automation as a whole. It lines up with what we typically see across vertical carousel and VLM projects.
A local example: Davcor Group, an Australian lock maker and distributor, installed an AutoStore automated storage system via Swisslog. Davcor reported ROI in under two years, along with an 85% cut to their power bill. This is Davcor and AutoStore’s result, not a Vertical Carousels Australia project. Still, it’s a real, checkable Australian example. It shows fast payback isn’t just for large operations. Davcor was processing around 1,000 picks a day at the time.
On funding: two federal grants often raised in this context are the Manufacturing Modernisation Fund and the Export Market Development Grants. Both are closed to new applications as we publish this. Check business.gov.au and austrade.gov.au before you assume either is open. The NSW Government’s Innovative Manufacturing Adoption Fund is open as we publish this. It offers $10,000 to $50,000 for feasibility and business-case work tied to new manufacturing tech. Applications close on 6 October 2026, or sooner if funding runs out, so check the link for the latest status. If you’d rather avoid a large upfront cost, equipment leasing and Automation-as-a-Service are also worth a look.
VCA has worked on more than 500 installations. In our experience, three numbers usually have the biggest effect on how fast a system pays for itself: how much labour it frees up, what the recovered floor space is really worth to your business, and how many picks you process each day. Get those three right, and the rest of the sum tends to look after itself.
A payback calculation is only as good as its inputs. These are the costs that most often get left out:
Structural work, including reinforced flooring and enough ceiling height, often gets missed. It can add real cost to a project if it isn’t picked up early. Industry sources often put upkeep at around 3–5% of equipment value each year. Contingency budgets often sit around 10–15% of project value. These figures shift by supplier and by job, so check them for your own project rather than treating them as fixed.
Some gains genuinely strengthen the case for automation, even though they don’t fit neatly into a payback sum: better ergonomics, safer picking, less walking, tighter stock control, less downtime risk, and a smaller footprint on power and waste. These are worth raising with your finance team. But they shouldn’t be quietly folded into the financial ROI figure as if they were sure cash savings. Keep the two talks separate, and your case stays honest.
A vertical carousel ROI calculator gives you a starting guess. A correct one comes from looking at your real storage setup, picking process, space costs and growth plans. Vertical Carousels Australia has more than 30 years of experience. We’ve completed over 500 installations across Australia and New Zealand. We offer free consultations to work out whether a vertical carousel or VLM suits your business. That could mean new equipment, a refurbished system, or an upgrade to what you already have.
Get in touch for a free ROI assessment
Reviewed by Vertical Carousels Australia’s automation specialists, drawing on more than 30 years of experience and 500+ installations across Australia and New Zealand.
