What is the default left margin in word 2003 document?

1.25 inches

Explanation:

It is 1.25 inches or 3.17 cm which is the left and right margin in the " Word 2003 document". And 1 inch or the 2.54 cm is being set as both sides left and right standard margin and 1.25 inches are also set for the top and bottom margin in the "Word 2003 document". And hence, by default, the left margin in Word 2003 document happens to be 1.25 inches.