This paper presents an inventory and relative frequency estimation of glides on the 527,190 word-form Standard Slovenian lexicon. Detailed acoustic-phonetic measurements for the first four most frequent glides /ai/, /au/, /ou/, and /ei/ in stressed syllables are given. Inspection of their formant trajectory plots enabeled measurements of the first four formants in the onset and offset steady-states. Normalized duration patterns for the onset steady-state, glide and offset steady-state are also given. Results represent a broader view to the recently published JIPA paper [4] and are an initial step towards the decision on the most appropriate allophonic symbols to be used in narrow transcription for the glides of Standard Slovenian.