TOPIC:

Hi i have been doing this but it only worked twice maybe it switch it self off ill try again. ive watched the video a hundred times

Then use CTL+W to change the between Inside edge, centre line and outside edge as the snapping point foe the wall.

Watch the following video at time 2:10 which explains this:

Sorry with a wall

I,m trying to snap to the inside making the guide line the outside dimensions of the building

Are you trying to snap a guideline to another guideline or object, or are you trying to snap a wall to a guideline?

Here are some common items concerning snapping:

When snapping a wall use Ctrl+W to change the snapping point from wall edge to centre line.

Be sure that you have snapping switched on. Its easy to switch off in the Quick access toolbar (
nect to grid icon).

Snapping properties can be changed for different objects. Right click on Snap tool to activate the following propeties panel:

I have tried many times but only managed twice to change the snaping from the centre line to the inside of the line.
I just carnt see why