How to determine the best sizings for your spray booth

Whichever industry you’re in, if you’re in the market for a new spray booth, you need to keep in mind the size that you are looking for. Among other questions, ask yourself: what is the nature of your service? Of course, if you’re in the automotive industry then you’ll need to accommodate for vehicles of all sizes. For the commercial sector, you’ll be thinking about public transportation.

And so on and so forth. We’re speaking broadly here, because there are a few more specific things that you need to know. Without further ado, here’s how you determine the best size for your spray booth.

Think about your operational costs and practicality

Industries aside, the bigger the spray booth the bigger your operational costs will be. The fans and motors are among the highest operational costs in an average spray booth system, so you’ll need to keep these in mind.

Another consideration is practicality. Your booth needs to be big enough that the operator and other staff members can move around with ease – at the very least, there needs to be enough space for fluid arm movement.

What about width and depth?

Standard sizings for spray booths in the automotive industry start from 7m up to 9m/10m in length and 4m – 4.5m wide. Commercial vehicles such as buses and coaches can increase to 18m long and 5m-6m wide while more specialised applications such train carriages or aerospace parts require even larger tunnel booths, usually 30m and longer.

To ensure that your booth is the correct size for your business needs you should determine your biggest product envelope, for example the largest vehicle that you work on or how many panels you need to paint at the same time. You’ll need to add 1m allowance around each side, 1.5m if you use steps or ladders within the booth.

What about height?

The height of your spray booth is largely determined by the overall height of the largest item to be painted. Ideally you will need 1m of clearance (and don’t forget extra height for any holding fixtures you have).

When figuring out your height, you need sufficient space so that the object being sprayed isn’t so close to the ceiling that the ceiling gets a coat, too. You also need to consider any spray work needed on the underside or on top of the object. Is it elevated enough as to allow work to be carried out underneath?

For automotive booths, generally speaking, light commercial vans with a height of 2.7/2.8m would fit comfortably within a Junair booth 3.1m high. However, if you need to paint the roof too, then you should opt for the 3.6m high.

Think about size when choosing a spray booth

The above should help guide you when making a decision on the size of your spray booth. However, you’ll be able to get more information from just a quick call with one of our sales team. To get in touch, call 01706 363 555 or, alternatively, email

We also have plenty of related resources over on our blog, so be sure to take a look.

Written by

Why is powder coating used in marine applications?

In the realm of marine protection, few solutions hold as much promise as marine grade powder coating. Developed to withstand the unforgiving conditions of our surrounding seas, these coatings offer a pragmatic approach to safeguarding metal surfaces from corrosion.  In this article, we’ll take a closer look at marine grade powder coating, exploring its practical […]

Read More

Considerations when buying a powder coating oven

For businesses operating in sectors like automotive and manufacturing, the prospect of establishing an in-house powder coating facility presents a compelling opportunity.

Read More

The Key to Uninterrupted Performance: Preventative Maintenance and Housekeeping for Paint Finishing Equipment

Junair is a specialist provider of paint finishing equipment including spraybooths and powder coating equipment in the UK. With a range of dedicated products and services designed to improve your paint finishing processes, Junair is here to help.  Paint finishing equipment includes powder coating equipment, different paint finishing equipment tools, drying and curing ovens and […]

Read More

Exploring the versatility of Power and Free Conveyors

Here’s an exciting glimpse into our latest conveyor project currently in the commissioning phase: a cutting-edge powder coating line that seamlessly combines automated and manual processes for the powder coating of security doors, where components can be loaded and unloaded in a stationary position along the conveyor line. To enhance quality control, we’ve incorporated five […]

Read More

Welcome to our team – Dan Parr

Welcoming Our Newest Team Member. Junair is thrilled to introduce our latest addition to the company, Dan Parr! Dan joins us as operations manager, bringing a wealth of expertise and a fresh perspective to our dynamic team. We couldn’t be happier to have him on board as we continue to grow and innovate. What is […]

Read More

The advantages of going green with your spray booth

Energy bills continue to be volatile across the UK and with government subsidies beginning to end, many companies are looking for ways to cut down on energy. If you combine this with the fact that many businesses are becoming more environmentally conscious for ethical and financial reasons, with grants on offer to make businesses greener, […]

Read More

Use of conveyors in powder coating facilities

Powder coating is a popular finishing process used in many industries, such as automotive, aerospace, and furniture manufacturing. It involves the application of a fine powder material onto a surface. This powder material  is then heated and cured to form a durable and attractive coating.  Powder coating facilities often face challenges when it comes to […]

Read More

How automated spray systems can save your business money

Automation is becoming more prevalent as technology advances and is one of the areas that is now increasingly accessible to businesses.  Having automatic processes in place has several advantages for businesses, it increases efficiency, improves accuracy and frees up employee time. However, one of the most underrated advantages of automation is how much money it […]

Read More

What is fusion bonded epoxy powder coating?

Fusion bonded epoxy powder coating (FBE) is a type of coating that is applied to the surface of a material as a dry powder. The powder is made up of small particles of epoxy resin and a hardening agent. The coating is applied to the surface of the material using a process called electrostatic spray […]

Read More

Read our latest news and insights from around the spray booth industry.

Find out more
Case Studies

Read about some of our latest client projects.

Find out more

Take a look at some of our downloadable resources.

Find out more

If you have a new project that you would like some help with, call us on +44 1706 363 555 to speak to a member of our team about your requirements. We will take you through our project process step-by-step, whether you are redeveloping an existing site or building a new facility, Junair can help.