Click Here

Click the button below to access the IRMCA Compass portal.

Compass Portal

Pavement Thickness

Slab depth for parking lots should be as shown on the plans.
Recommended parking area slab depths, based on use, are as follows:

  • Light Use: 4" concrete - Parking for passenger cars, light trucks and occasional use by heavier trucks.

  • Medium Use: 5" concrete - Driveways and parking areas for light to medium trucks plus occasional use by heavier trucks.

  • Heavy Use: 6" or thicker concrete - Driveways and parking areas for heavier commercial and industrial trucks. (Pavements for heavy industrial trucks should be designed on an individual basis.)


Back to Professionals