While the default form size is hard coded in the IDE, you can simply create a form to your liking, and save the form template in the repository for future reuse. To add a form to the repository, create your new form and save it to a directory (usually to the Objrepos directory located in the Delphi or CBuilder directory), then right click on the form and choose "Add to repository". After completing the information requested in the repository dialog, you will be able to add your new default form to any project by selecting "File->New" from the IDE's main menu, and choosing your new form.