1592953405000 1312632483000 term-49315 1616541245883 1312632543000 1616290566041 adlib fitz-online adlib-term-49315 6c3238d6-b481-3555-92ff-0273be63f422 2 1 scope note Horizontal members laid across the bottom of an unfinished opening to act as a base during construction of window frames or door frames. For the horizontal members that rest on the foundation at the bottom of a wood structure, use "sill plates." reference term-49314 adlib-term-49314 4eabfe73-af18-3d1e-8441-63d9d9562f0b rough sill V.PJ.AFU.ALO.ARI.AFU.ALO.ALO.AXC 1 code V.PJ.AFU.ALO.ARI.AFU.ALO.ALO.AXC 1 rough sills reference term-49319 adlib-term-49319 ecb7d96f-b720-32ff-8a45-eaa2a63a606b <balloon and platform frame components> rough sills term