Here is my installation size with the essentials.
root@DietPi:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mmcblk0p2 15G 1.6G 13G 11% /
root@DietPi:~# dietpi-software list | grep ‘[[:space:]]=2’
id 5 | =2 | alsa: linux sound system |
id 6 | =2 | xserver: linux display system |
id 23 | =2 | lxde: ultra lightweight desktop | +alsa +xserver | https://dietpi.com/forum/t/dietpi-software-details-for-all-installation-options/22/1
id 29 | =2 | xrdp: remote desktop protocol (rdp) server | +desktop | https://dietpi.com/forum/t/dietpi-i2c-problem/66/1
id 31 | =2 | kodi: the media centre for linux | +alsa +xserver | https://dietpi.com/forum/t/dietpi-software-details-for-all-installation-options/22/1
id 96 | =2 | samba: feature-rich file server | | http://dietpi.com/phpbb/viewtopic.php?f=8&t=5&start=10#p56
id 103 | =2 | dietpi-ramlog: minimal, optimized logging | | https://dietpi.com/forum/t/dietpi-survey-information/32/1
id 104 | =2 | dropbear: ssh server | | https://dietpi.com/forum/t/dietpi-survey-information/32/1
id 113 | =2 | chromium: (optional) web browser | +desktop | https://dietpi.com/forum/t/dietpi-software-details-for-all-installation-options/22/74