K2, K3 and the scale of the designs before Nelson

Which was the largest design in the series leading to the Nelson class?

K3 is the initial tentative choice, but K2 is then identified as heavier: about 53,000 tons standard against K3's 52,000 tons.

The initial choice of K3 changes when standard displacement is compared. K2 is listed at 53,000 tons standard, against 52,000 tons for K3. Full-load figures around 60,000 tons illustrate the scale of these proposals. K3 carries an additional gun despite its lower standard displacement. K2 enlarges the Hood concept with better armour protection and eight 18-inch guns. L3 and the H designs also appear as very large proposals.