Are the steps suited for (semi)professional use? No. The Thule steps have been designed for vehicles during recreational use. The steps are not suitable for (semi)professional use. Can't find the answer you're looking for?Submit a support request Related articles Which step model would fit on my vehicle? Who can install the step? Which step model do I have on my vehicle? How do I mount the organizers on my vehicle? Is the mounting material included in the organizer package?