| HollywoodHUB under construction with tower crane at Hollywood Transit | PortlandAppraisalBlog | CC BY-SA 4.0 |
| Steel frame building under construction in Taiwan.jpg | SSJF01 | CC0 |
| Steel Frame Commercial Building Under Construction, Ann Arbor Township | Dwight Burdette | CC BY 3.0 |
| Steel Floor Frame on Span 10 of the Longfellow Bridge (17016356967).jp | MassDOT | Public domain |
| I-beam raw material at WP Welding 3.jpg | W.carter | CC0 |
| Industrial building being built on Leeds Road (A62) - geograph.org.uk | habiloid | CC BY-SA 2.0 |
| 7-hadveli-cati-sandvic-paneli.jpg | 360dsgn | CC BY-SA 4.0 |
| Bldg 20029 roof renovation Chièvres Air Base Belgium (7162727).jpg | U.S. Army photo by Henri Cambier | Public domain |
| Großer Kühlraum (Elbe-Obst Jork).jpg | Kopiersperre | CC BY-SA 3.0 |
| Standing seam metal roof - white.jpg | Wikideas1 | CC0 |
| Standing seam metal roof 4.jpg | Wikideas1 | CC0 |
| Fassadenverkleidung einer Turnhalle.jpg | August Geyler | CC BY-SA 4.0 |
| Whitman School of Management Building, Syracuse University 01.jpg | Kiran891 | CC BY-SA 4.0 |
| Blockheizkraftwerk Leipzig Möckern – Nordfassade.jpg | August Geyler | CC BY-SA 4.0 |
| Arrangement Mineralwolle.jpeg | FMI Fachverband Mineralwolleindustrie | CC BY-SA 3.0 de |
| FinishedEPDMcoveredRoof.jpg | KVDP | Public domain |
| Staircase, Steel Stacks, Bethlehem, PA.jpg | w_lemay | CC BY-SA 2.0 |
| Rinzaiji temple (Toyohashi) 07.jpg | 運動会プロテインパワー | CC BY-SA 4.0 |
| PV solar parking.jpg | Hanjin | CC BY-SA 3.0 |
| Parking under Solar Canopy (52937580768).jpg | pedrik | CC BY 2.0 |
