What is a detail drawing?
A detail drawing is a construction drawing that shows a specific part of a structure at a larger scale (zoomed in), with all dimensions, materials, and connection details. Where a floor plan shows the whole picture, the detail drawing shows how a specific junction is constructed — for example, how the gutter connects to the fascia board, or how the foundation transitions into the wall.
What are detail drawings used for?
| Application | Example |
|---|---|
| Planning permission | The municipality wants to see how the structure is detailed |
| Execution | The builder needs to know how a junction is constructed |
| Structural calculation | The structural engineer draws connection details |
| Ordering | Dimensions for window frames, steel, prefab elements |
Common details
- Foundation-wall junction — How the wall sits on the foundation (plinth, DPC)
- Roof edge — How rafters, fascia board, gutter, and roofing material come together
- Window frame junction — How the frame sits in the reveal (adjustment space, finishing, waterproofing)
- Cavity junction — How the cavity is closed off at windows
- Eaves — How the roof connects to the wall plate
Scale
| Scale | Use |
|---|---|
| 1:100 | Floor plan, overview |
| 1:50 | Cross sections |
| 1:20 | Details |
| 1:10 or 1:5 | Fine details (window frames, connections) |
For DIY
With construction drawings (such as those from fredsbouwtekeningen.nl), you receive detail drawings for all critical junctions. This makes the difference between a well-built structure and one that leaks, cracks, or subsides.
Related terms
- Building permit
- NEN standard
- Building regulations
- Window frame