Height limit (2.5 metres)
Vehicles exceeding 2.5 metres in height must not pass beyond this sign. This restriction commonly applies at underpasses, bridges, and car parks where overhead clearance is limited. Foreign drivers should note that vehicle height includes any roof-mounted luggage, equipment, or cargo.
Verified as Thai road sign บ.35 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Height limit (2.5 metres) is one of the prohibition signs candidates lose marks on. Not because the symbol is unfamiliar, but because the question reframes the scenario. Practising it in the flow surfaces those reframings before test day.
Now see it in questions.
Spotting Height limit (2.5 metres) in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
