Layout Specifications: Win32 

The following table lists the typical height and width of common dialog-box controls.

Surfaces and Controls	Height (DLUs)	Width (DLUs)
Dialog box	332 max. (for 800 X 600 screen resolution)	332 max. (for 800 X 600 screen resolution)
Property sheet	252 227 212	218 215 188
Command button	14	50
Check box	10	As wide as possible (usually to the margins) to accommodate localization requirements.
Drop-down list box	12	Size to widest content plus 30percent (for localization) or the width of other list or text boxes on same surface, whichever is greater.
Option button	10	As wide as possible (usually to the margins) to accommodate localization requirements.
Text box	14	Size to match other text boxes and drop-down combo boxes.
Text labels	8 per line of text	As wide as needed.
Instructional text	8 per line of text	To the margins.