Block Quotation Length Threshold
The word counts at which style guides require a quotation to be set off as a block.
Style guides set numeric thresholds for when a quotation stops running in with your text and becomes an indented block. APA sets the line at 40 words. MLA uses four typed lines of prose or three lines of verse. Chicago suggests 100 words or roughly eight lines, while leaving room for editorial judgement.
Crossing the threshold changes three things at once: the quotation is indented, the quotation marks are dropped (the indentation does that work), and the citation moves after the closing punctuation rather than before it.
The thresholds exist for readability, not bureaucracy. A long run-in quotation forces the reader to hold open quotation marks across several lines and loses track of whose voice is speaking. Indentation makes the handover visible at a glance.
Common mistake: keeping the quotation marks when you indent. Doubling the signal is the most frequent block-quote error in student and professional writing alike.
“APA: 40+ words → block. MLA: 4+ lines → block. Chicago: ~100 words → block.”
Keep reading the glossary
A long quotation set off as its own indented paragraph, without quotation marks.
A long quotation set off from the surrounding text by margin indentation instead of quotation marks.
A short quotation set inside the writer's own sentence with quotation marks, rather than displayed as a separate block.
A paragraph whose first line sits left of the rest — the standard shape of a bibliography entry.