Et in summo contrahatur, si erit lumen ab imo ad sedecim pedis, antepagmenti iii parte; xvi pedum ad xxv, superior pars luminis contrahatur antepagmenti parte iiii; si ab pedibus xxv ad xxx, summa pars contrahatur antepagmenti parte viii.
Let it be diminished at the top a third of the width of the architrave, if the opening be not more than 16 feet high; if from 16 to 25 feet, let the upper part of the opening be contracted 1/4 of the architrave; from 25 to 30 feet, 1/8 of the architraves.
final_alignments\Vitruvius_Architecture_Book_4.json