Height restriction ahead (2.5 metres)
A structure ahead has a maximum clearance of 2.5 metres. Drivers of tall vehicles must not proceed unless their vehicle's height is below this limit. Note that vehicle height includes any load carried on the roof.
Verified as Thai road sign ต.32 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Most candidates can describe Height restriction ahead (2.5 metres). The Thai exam tests whether you can pick it out of a roadside scene under time pressure and choose the right response. Practising it inside the question flow is what closes that gap.
Now see it in questions.
Spotting Height restriction ahead (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.
