🏢�🧱

#building frame #skyscraper #structural beam #steel skeleton #construction framework #building support

🧱🪱🪟

#lintel #window lintel #header beam #structural beam #masonry support #building construction #window frame top

🧱🪱🚪

#lintel #door lintel #architrave #header beam #structural beam #masonry support #building construction #door frame top

🏠🪵📐

#roof beam #structural beam #timber frame #roof truss #building support #wood beam #house framing