I make plans for furniture construction all the time. For most parts I can get the dimensions using 2D views of the components for a scene which I then use for a viewport in LayOut. So for a leg like this...
Screenshot - 2_12_2019 , 8_13_25 AM.png

I will have two copies of the component set up for a standard 3rd angle projection and a standard view. Here I've orbited the camera so the components show better.
Screenshot - 2_12_2019 , 8_10_49 AM.png

The same sort of thing was done for the column for this table.
Screenshot - 2_12_2019 , 8_25_15 AM.png

I could have created a flat profile of the column to use for dimensioning but it's easy enough to dimension the 3D component in LO so I didn't bother with the flat.

The two- or three-views can also be done with a single instance of the component and multiple scenes. Depending on the part, I use either method.

For details such as the edge profile of a table top, I will either make a copy of the profile before I use Follow Me or draw a rectangle that passes through the component and use Intersect Faces to pick up the shape. You can do the same thing with a table leg, too.