@luisgerardobernallares09 Metric template are created using MM as your units.
Example: an A5 template measures 210mm X 148mm at a scale of 1:1 in modelspace.
An A5 template at of scale of 1:10 in modelspaces measures : 2100mm X 1480mm.
Same goes for all metric templates in modelspace.
Go ahead and draw a rectangle measuring 210 X 148 right now next to your plans and see what happens. Your rectangle is HUGE and your drawing is small right ? In reality that's an A5 template at a scale of 1:1.
The problem is that for your drafting units is that 1=1m rather than 1=1mm. So everything is 1000 times to small in relation to true template dimensions as mentioned above.
Scale everything by 1000,
Modify your drafting units scale factor to 0.001 to draft in M (or leave it and draft in MM)
Draw your new template using true template dimensions in MM at a scale of 1:1
Then scale your 1:1 template by whatever scale you need. For example, 1:50 = scaling your 1:1 template X50. For Scale of 1:100 scale your 1:1 template by x100
You will have fixed your scale problems after that.
FYI, there is no such thing as a 90X60 metric template.
