Domed building structure

Dormer structure and method

Double barbed plate with fastener

Double cavity wall

Double ended connector/utility unit

Double fold insulation batt

Double layer acoustic liner and a fluid pressurizing device...

Double locking flooring system for a construction site

Double roofing roof structure

Double shear angled fastener connector

Double wall fabric panel unit

Double-glazed building panel structure and filling system

Double-level drainage system for flat roofs

Double-shell wall

Double-sigmoid connector

Double-skin and moveable-sunshade facade system

Double-walled panel

Double-wing wing nut anchor system and method

Doubly prestressed roof-ceiling construction with grid...

Dowel fastener and joints including same