Longstanding practice in the District of Delaware, pursuant to the Court's local rules and the Judges' form scheduling orders and other standing orders, mandated page limits for briefing.
For example, the Court's local rules set limits of 20 pages for opening, briefs 20 pages for answering briefs, and 10 pages for reply briefs, all in 12 point font. See LR 7.1.3(a)(4); LR 5.1.1(a). However, since about mid-2019, some Judges here have permitted or required word limits in lieu of page limits for some types of documents.