Posted by Igualo on Apr 15, 2022; 10:52am
URL: https://forum.librecad.org/Dimensions-not-adding-up-tp5721645p5721647.html

Thank you so much for your prompt response.
I definitely had "snap to endpoint" switched on but... It is possible that I accidentally had something like "snap to grid" on at the same time.
There is lots of useful information in your reply that will take me a little while to figure out - thanks again for the comprehensive answer.
I will go have a play with your suggestions and respond more fully then