Workshop Layout: Planning Bay Flow

Two workshops with identical equipment can differ substantially in what they get through in a day. The difference is usually layout: how far people walk, how often vehicles have to be shuffled, and how much of the floor is doing useful work.

Layout is also the cheapest thing to get right, because most of it is decided before anything is bolted down.

Start with how vehicles move

Before thinking about equipment, map the journey a vehicle takes: arrival, waiting, into a bay, work, road test, back, collection. Every point where a vehicle has to be moved because something else is in the way is time lost, several times a day.

The questions worth answering on paper:

• Can a vehicle reach any bay without moving another vehicle?
• Is there somewhere to park work waiting to start, and work waiting for collection?
• Can a vehicle leave for a road test without a shuffle?
• Where do customers walk, and does that route cross working areas?
• Is there space for a delivery to arrive without blocking a bay?

Drive-through bays, where a vehicle can enter one end and leave the other, solve much of this — where the building allows.

Putting bays in a sensible order

Bays are not interchangeable once equipment is installed. A few principles that hold in most workshops:

• Put the highest-turnover bay nearest the door. Quick jobs shuffle in and out most often.
• Put long jobs furthest in. A vehicle in bits for three days should not sit in the most accessible bay.
• Keep alignment near a door. It needs a straight approach and gets loaded frequently.
• Group tyre equipment together. Changer, balancer and tyre storage want to be within a few steps — see our guide to adding a tyre service.
• Give ADAS or calibration work a bay that can be kept clear, level and evenly lit, per our ADAS guide.
• Keep the dirtiest work away from the cleanest. Welding and exhaust work do not belong next to calibration.

Space around the bay, not just in it

The commonest layout mistake is fitting the equipment and forgetting the working space around it. A two-post lift is typically 3,000 to 3,600mm across the columns, but the bay needs around 4,500mm to work in comfortably — doors opening, walking round a raised vehicle, getting a jack alongside. Our guide to workshop space requirements covers the dimensions.

Also worth planning:

• Clearance between adjacent raised vehicles, not just between columns.
• Door swing on both the vehicle and the building.
• Somewhere for wheels to go when they come off. Four wheels take more floor than people allow.
• Room for the bin, the drain tray and the parts trolley.

Services follow layout, not the other way round

Air drops, power and lighting are cheap to place correctly at fit-out and disruptive to move later:

• An air drop at every bay. Dragging hose between bays wastes time all day.
• Power where it is used, including sockets at bench height and at the bays.
• Light over the working area, not just over the middle of the room. Under-vehicle work needs task lighting.
• Cable and hose routing that keeps the floor clear.

Our guide to power and air covers sizing; this is about where it lands.

Storage close to the work

Walking to fetch things is invisible time, and it adds up. Consumables and common parts belong near the bays that use them. Tool storage belongs at the bay, not centrally. Tyre and wheel storage belongs beside the tyre bay. A parts store that requires crossing the workshop is a tax on every job.

Safety is a layout question

• Marked walkways keeping people clear of vehicle movements.
• Clear space around lift columns so nobody works in a pinch point.
• Fire routes kept genuinely clear, not clear in principle.
• Spill containment where oils and fluids are stored.
• A separated area for EV high voltage work, with barriers — see preparing your workshop for EVs.
• Somewhere for customers to wait that is not the workshop floor.

Plan for the bay you have not built yet

Leave room for growth. A workshop laid out to fill every square metre on day one has nowhere to put the alignment lift, the tyre bay or the second two-post when the work arrives. Where you can, keep one bay's worth of floor uncommitted, and run services past it so adding equipment later is a connection rather than a project.

Frequently asked questions

How much space does a workshop bay need?

For a two-post bay, plan around 4,500mm wide by 6,000mm deep as a working minimum. The lift itself is narrower, but you need room to open doors and walk around a raised vehicle.

What order should workshop bays be in?

Highest-turnover work nearest the door, long jobs furthest in, alignment near a door for a straight approach, and tyre equipment grouped together with its storage.

Where should air drops go?

One at every bay. Dragging hoses between bays is a small delay repeated dozens of times a day.

Should I leave space for future equipment?

Yes, if you possibly can. Keeping one bay's worth of floor uncommitted, with services run past it, turns a future installation into a connection rather than a rebuild.

Does layout really affect throughput?

Considerably. Most of the loss is invisible — walking for tools, shuffling vehicles, waiting for a bay to clear — which is why it rarely gets measured and rarely gets fixed.

Planning a fit-out

A free site survey covers bay positions, floor, height and services together, which is the point at which layout decisions are cheapest to make. See our vehicle lifts and wheel equipment, or request a quote and we will reply within one working day.