By the same logic, a half page ad is known so as it occupies half of a newspaper page. But there are two types of half page adverts which have separate dimensions as well. Those are:
Vertical Half Page
If a half page ad is vertically printed then the dimensions of such an ad would be around 16 cm wide and 52 cm long covering the full vertical length and the half width of the page.
Horizontal Half Page
As for a horizontal half page advertisement, the ad would be 33 cm wide and 25 cm long, covering the complete width and half length of the page in question.
Half-page advertisements are mostly common among Business, Retail and FMCG categories. Some of these ads are also flip ads, which means that only half of the newspaper page is printed on which the ad is placed while the rest has no content or any page at all. This happens mainly in case of the front page vertically half ads which appear like a half jacket of the main newspaper.
Full page ads, as the name suggests, covers the entire page of the newspaper and has no other content apart from the ad print. All full page advertisements are 33 cm wide, covering about 8 columns and 52 cm long. These dimensions are based on the size of a broadsheet excluding a margin of at least 1-2 cm on the edges.
**(An image of a full page advertisement mentioning the dimensions of arrows and a gap of 1-2 cm on all the sides, displayed with arrows again)