If you are on the pro version, taking models through layout is the best way to create 2d Plans and elevations having created specific views (scenes).
If you stay in sketchup, go to the camera drop down and uncheck perspective or select parallel projection. Then use the various views (also under camera/standard views / top, front, right side left side etc to get the views you need, you can save each one as a scene (view / animation / add scene) when selecting these scenes which will appear as tabs, they can be exported as 2d graphics (export/ 2d ).
To make these views easier to get to you can set them up in the toolbars view/toolbars/views, which will give you icons to access the views which will staye on screen. Also worth noting, is that when you are in a parallel view, do not use the orbit tool to move around as you will get off a true parallel view, use the pan tool… if you get off, select the appropriate view again to correct it.
When you have geometry that is “off” the x,y or z plane, you can select the face that needs to be parallel and context click (right click) and select align view.
Sometimes it is also convenient to coppy your model, orientate it at a 90 degrees next to the original, and you can have 2 or 3 views at once in the frame.