Vertical space within chapter label using titlesec

Question

I am required to have a chapter heading formatted in the following way to obey thesis formatting rules at our institution:

CHAPTER

1. Chapter Title

The vertical space between "CHAPTER" and the chapter number will need to be specified explicitly (roughly equal to three carriage returns). The difficulty is that within titlesec, one may only specify space before/after the label (typically, something like "Chapter 1.") and the title text ("Chapter Title" in the above sample). Using {CHAPTER \thechapter.} as the label specification in titlesec puts the two elements of the label on the same line and any attempt to insert \vspace* or explicit carriage returns gives compile errors. Any help would be much appreciated.

Answer 1

Adjust font size and the spacing, but this should be the idea:

\documentclass{book}
\usepackage{titlesec}

\titleformat{\chapter}[display]
  {\Large\bfseries}
  {\MakeUppercase{\chaptertitlename}}
  {2\baselineskip}
  {\large\quad\thechapter. }
\titleformat{name=\chapter,numberless}[display]
  {\Large\bfseries}
  {}
  {0pt}
  {\large}

\begin{document}
\frontmatter
\tableofcontents
\mainmatter
\chapter{Some title}

\end{document}