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 Understanding The MOT Bay Sizes and Dimensions


MOT Bays can be made in many lengths and layouts. Making sure the location is appropriate for the category or classes of vehicles you want to test is the most important step in the planning process for opening a new station. The station is well-fitted for the tester to do MOT Coventry.

The equipment and premises you nominate will determine how long the bay is. For instance, the Headlamp Beam Tester, Lift / Ramp, and Roller Brake Tester (RBT) are the typical positions for these testers in a bay.

Whether or not your ramp is sunken or surface-mounted is a crucial consideration when determining the dimensions of your bay. Once more, this depends on how misogynistic the space is on your property.

MOT Bay Sizes and Dimensions

Before making any decisions, you should consider the Bay size and dimension criteria below. These requirements apply to the most popular Bay classes and types.

Class 4 Bay Dimensions with Ramp Size Requirements

The simplest method to describe the height requirement which can occasionally be confusing is to picture your ramp as a glass box.

The glass box needs to be enlarged by 500 mm from the left and right platform's outer corners, 500 mm from the ramp's back, and 1000 mm from the ramp's end's drive. I need this glass box to be 3800mm tall.

Some More Essential Bay Dimensions to Know

  • A class 4 bay's overall width is 3600 mm.
  • The width and height of vehicle entrances and exits must be at least 2400mm.
  • Headroom above raise 3800mm as previously mentioned
  • 2400mm of headroom above the braking test standing area
  • Brake test standing area: 2400 mm in width
  • Length of the brake test standing area: 9000mm. If your ramp is level with your roller brake tester and sunken into the floor, this may be a part of it.

Class 4 Bay Dimensions with an Inspection Pit Size Requirements

The height drops significantly from 3800mm to 2400mm when an inspection pit is used in place of a ramp. If you don't have the necessary width or height on your property, using a pit might be your only choice.

Once more, with the glass box as a guide, you must visualize your glass box as being 2400 mm high and 3600 mm wide over the entire length of your bay. There is no problem if that glass box fits.

Inspection Pit Size Requirements

  • A minimum 3900mm working length and a minimum 760mm width that does not exceed 920mm when measured across both pit walls
  • a depth over the working length of at least 1500 mm and no more than 1800 mm
  • sufficient access for employees to enter the pit without obstructing its operating dimensions

More Essential Dimensions to Know about Using an Inspection Pit

  • A class 4 bay's overall width is 3600 mm.
  • Entryways and exits have to be at least 2400 mm wide and tall.
  • 2400mm of headroom above the braking test standing area
  • Brake test standing area: 2400 mm in width
  • Brake test standing area: 9000 mm in length You can include any side of your pit in this.

Class 7 Bay Dimensions with Ramp Size Requirements

If you picture a glass box surrounding your ramp, use the same example of a class 4 bay. The glass box needs to be enlarged by 500 mm from the left and right platform's outer corners, 500 mm from the ramp's back, and 1000 mm from the ramp's end's drive. I need this glass box to be 4800mm tall.

The height won't be an issue if that glass box fits in the space where the ramp is supposed to be put. Your application may be rejected by the Driver and Vehicle Standards Agency (DVSA) if something gets inside the glass box.

There may be another way you face this issue by using a different configuration on the layout of the bay, but this all comes from the space available within your workshop.

More Essential Dimensions to Know

  • A class 7 bay's total width is 4200 mm.
  • Entry and exit points for vehicles must be at least 3200 mm high and 3000 mm wide. The braking test standing area must be at least 3500mm wide if it is located outside the entrance.
  • 3200mm of headroom over the braking test standing area
  • Brake test standing area: 4200 mm in width
  • a 14000 mm-long standing brake test area. If your ramp is level with your roller brake tester and sunken into the floor, this may be a part of it.

Class 7 Bay Dimensions with an Inspection Pit Size Requirements

When employing a Pit instead of a ramp, the height decreases significantly from 4800mm to 3200mm. If you do not have the necessary height or breadth on your property, using a pit may be your only alternative.

Again, using the glass box as a guide, envision a glass box 4200mm wide and 3200mm high that spans the whole length of your bay. If the glass box fits, there is no problem.

Inspection Pit Size Requirements

  • The working length should be at least 6000mm, with a minimum width of 760mm and a maximum of 1300mm across both pit walls.
  • The pit should have a depth of at least 1400mm and not exceed 1800mm throughout its working length, suitable access for people, and be sealed to prevent water entry.

When planning the architecture of your new MOT Test Coventry bay, regardless of the type of vehicle you intend to test or do car service, it's always a good idea to consider what you want to do with the remaining space.