The studwork body was lined working with 18mm plywood which the glazing was put into. Scaled-down strips of plywood beading was extra to safe the window in place, I screwed the lining and beading alongside one another to guarantee toughness but This might be glued also. Kyle Cooke, Carl Radke, https://woodensummerhouse23445.blogproducer.com/29353472/everything-about-timber-summer-house