Assembly drawings should be dimensioned and labeled in a way to allow the welder to assemble and weld all parts together. This means an assembly drawing should show:

• Plate and beam positions dimensioned to each other.
• All parts should be dimensioned on visible views. No hidden lines should be dimensioned if possible. Additional views should be added to avoid this.
• Running dimensioning are preferred by many welders lekarna-slovenija.com
• Hole size and position (hole size often only needs adding if it is not 22mm, standard hole size needs to be stated in the notes)
• Weld type and size (weld size often only needs adding if it differs from the standard weld stated in the notes)
• All part numbers need to be labeled for each part
• The finish is stated on each drawing (such as galvanised or primed)