If you are looking for something free that can handle dimensions I would recommend QCAD. https://qcad.org/en/ It only supports 2D drawings, but I find it works well for laser cutting / engraving work. The free windows versions is also a bit trashy/unusable in free mode. But the Linux version works great if you want to try booting Linux off a USB stick. - Source: Reddit / 25 days ago
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
FreeCAD - An open-source parametric 3D modeler
DraftSight - Discover Dassault Systèmes®' DRAFTSIGHT™ Professional CAD software that lets you create, edit, view and markup any kind of 2D drawing. Learn more here.
SketchUp - 3D for Everyone
Autodesk AutoCAD - Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.
BricsCAD - A powerful CAD platform, with features familiar to you from native .dwg applications.