1592953338000 1312632483000 term-45633 1616541592198 1312632539000 1616290592368 adlib fitz-online adlib-term-45633 f32a62f6-9b99-3de8-b01a-dd90416b2bba 2 1 scope note Slender, vertical, usually nonstructural bars or piers forming a division between doors, screens, or lights of windows; for the small members that divide glazing areas and support the panes or the verticals that separate the panels in panel doors, use "muntins." reference term-45632 adlib-term-45632 8cd0b6a7-68b3-3ecc-8a70-522745453667 mullion V.PJ.AFU.ALO.ARI.ARI.ALO.AXC 1 code V.PJ.AFU.ALO.ARI.ARI.ALO.AXC 1 mullions reference term-45668 adlib-term-45668 48acaf27-6ebc-3f3c-8cec-7229d61071c4 <opening components> mullions term