The cross wall separates Conwy's inner and outer wards, with four towers rising on each side. Each tower reaches roughly twenty-one meters, giving the plan its dense vertical character. Putlog holes remain where builders inserted timbers to support scaffolding as the masonry rose. Those traces let viewers read construction technique directly from the surviving walls. Some holes were later filled because openings useful to builders could also offer attackers footholds for climbing.
Notable Point · 21:46-22:29
Twenty-one-meter towers and putlog holes
Conwy's eight tall towers still preserve putlog holes from their timber scaffolding, exposing both the scale of construction and a later climbing vulnerability.