Book's class page margins in ClassicThesis

Question

how can obtain the normal page margins (that provided from book class) on the ClassThesis?

i have try to comment this commands in ClassicThesis.sty

         {% Palatino or other
            \PackageInfo{classicthesis}{A4 paper, Palatino or other}
            \areaset[current]{336pt}{750pt} % ~ 336 * factor 2 + 33 head + 42 \the\footskip 
         \areaset{336pt}{761pt} % 686 (factor 2.2) + 33 head + 42 head \the\footskip 10pt     
            \setlength{\marginparwidth}{7em}%
           \setlength{\marginparsep}{2em}%
       }%

Answer 1

Instead of using geomtry (classicthesis is base on KOMAscript and include a similar functionality through areaset) I suggest you take the number 345pt, multiply it with 2 (or 2.2), add 33pt + 42pt to the result, i.e.:

{% Palatino or other
   \PackageInfo{classicthesis}{A4 paper, Palatino or other}
   \areaset[current]{345pt}{768pt} % ~ 345 * factor 2 + 33 head + 42 \the\footskip 
   \areaset{345pt}{815pt} % 740 (factor 2.2) + 33 head + 42 head \the\footskip    
       \setlength{\marginparwidth}{7em}%
       \setlength{\marginparsep}{2em}%
   }%

Then you at least change the margins in a consistent way. Be aware that you typeblock neither will be a golden section or a double square, the recommended typeblocks for A4 paper sheet. I quote from page 4 in the manual:

The size of the text body is intentionally shaped like it is. It supports both legibility and allows a reasonable amount of information to be on a page. And, no: the lines are not too short.

So I assume that you know what you are doing and why (see the requirement in the classicthesis manual:

Therefore, please do not break the beauty of the style by changing these things unless you really know what you are doing! Please.

If you find the margin to wide, it is the auhtor’s intention: You can use these margins for summaries of the text body ... (ref. the margin note at page 4 in the manual).

Answer 2

The question makes little sense; however, you get essentially the same layout as the book class with

\usepackage[verbose]{geometry}
\geometry{innermargin=100pt,top=125pt,
  textwidth=345pt,textheight=598pt,
  marginparwidth=115pt,marginparsep=7pt,
  heightrounded}