Explore the nuances of reading and interpreting floor plans and dimensions, through this in-depth explanation of the elements of architectural drawings. Understand the measurements, legend and construction types to get a comprehensive understanding of the building layout.
Key Insights
- The article provides a detailed walk-through of reading dimensions in a floor plan, explaining elements like the dimension line and extension line, and how measurements like 104 feet and 5 inches are derived between two points.
- Various types of construction are described using a legend in the floor plan. Different patterns and line styles are used to denote elements like a typical mounting wall, masonry units, hidden line indicating the line of the structure above, double 2x4 mounting wall, and perimeter lines.
- The understanding of dimensions and construction type is further reinforced through examples, such as the distance between a masonry wall and a corner, or from an exterior face to the central line of a window, measured in feet and inches.
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39 - Planos de Piso - Nivel 1 - Parte 2
Now, let's talk for a few minutes about dimensions. You can see up here that I have a general dimension of 104 feet, 5 inches. What this means is that here is the value of my dimension, this line below is called the dimension.
So this horizontal is the line of dimension and I have verticals at each end of the dimension. I have a vertical here to the left, I go back to the dimension line, I am in the text, I go to the right. I have a vertical here.
What this says is that they are 104 feet 5 inches from the bar that is here. I follow the extension line, directly down. It takes me to this wall, right down here.
So, they are 104 feet and 5 inches from the end of that wall to the end of this wall here to the right. So I have my chain of general dimensions here. The next chain of dimensions typically tends to be the main batches in the building.
So, you can see that they are 13 feet and 9 inches from that same exterior wall. Up to the oblique bar, down to the extension line to the end of the foundation, right there. They are 45 feet and 10 inches from this line to this line on this wall.
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They will be 24 feet from this line and its extension line there, to this part of the building here. And they are 20 feet and 9 inches to the end of the next building. Now, let's take a look at the building in a little more detail.
Here is what I would like you to see, down there at the bottom. I have a legend and the legend is telling me different types of construction. You can see that I have a shaded area and that is a typical mounting wall.
I have my masonry units that are typically shown as oblique bar marks. I have a discontinuous line that we in CAD and BIM in terms we call, hidden line. I have a hidden line that shows the line of the structure above.
I have a network pattern that shows a double 2x4 mounting wall. And then I have some perimeter lines and other geometry parts in the house. So, when I look at the house, you can see that this area here is the main part of the house.
I have the house above, which is shown through this discontinuous line here. And I have more house over there. When you look at the drawing, you can see that we have the masonry wall with the pattern.
Pattern, do you see the inclined bars? We have our typical mounting walls, which in this case are wooden walls with the darker gray pattern inside. And if I slide a little down, you can see that I have my double-mounting wall that happens right down here. So let's bring this area a little closer.
What I can see, for example, is that there are 3 11-inch feet from this masonry wall to the corner right here. There are 16 10-inch feet from this corner here to this line here, which is the exterior face of the building. There are 4 6-inch feet from the exterior face to the central line of the window.
And the numbers continue from there. Again, we have the key notes that refer to the list of key notes that is above.
