An A-frame is a tool used to determine landscape contour. It is simple and cheap to make, and appropriate to situations where other contour-mapping tools such as LiDAR or GPS are unavailable, impractical, or prohibitively expensive. It consists of three straight rods or planks, fastened together in the shape of a capital "A", with a plumb bob (weight) suspended from the apex. Markings on the cross-piece are compared to the plumb bob line to determine slope.
| Authors | Ethan |
|---|---|
| License | CC-BY-SA-4.0 |
| What links here | Dead level contours, User:Ethan/Tasks, User:RichardF/Index of structural engineering articles, User:Emilio/Infobox design |
| Impact Number of visits to this page and its redirects. | 182 |
| Suggestions Suggestions to improve this page. Click on each one to read more. | Expand this page |
| Created | April 2, 2016 by Ethan |
| Modified | March 2, 2022 by Page script |
| Cite as | Ethan (2016–2022). "A-frame". Appropedia. Retrieved March 31, 2023. |
