How to read construction drawings
First, decide on the scale of the drawing. As a rule, they have clearly structured values. For example, plans, facades and sections are performed on a scale of 1:50, 1: 100, 1: 200. The sections of the foundations are usually executed on a scale of 1 to 50, and the details of the constructions in the figure are shown 1: 5, 1:10, 1:20 and 1:50. Plans overlapping and rafters are given a scale of 1 to 100. But the wiring diagrams usually correspond to the real ones as 1 to 100 or 1 to 200. When decoding the sizes, remember that they are all set in millimeters, and the elevation levels of the facades and cuts are in meters.
When reading the drawing, note that the building plan is displayed as a horizontal slit. And it passes necessarily through the window and doorways. Also on the plan you can see the grid of the center axes. They are designated in the directions: those that go along the front wall - Arabic numerals; those that are located on the side - in capital letters of the Russian alphabet.
If you see that some designations are beyond the dimensions of the plan, then, as a rule, they denote the distance between the extreme center axes; distance between the centering axes tied to the outer edges of the wall; binding piers to the center axes, as well as the size of the piers and openings. All that is within the plan is the binding of internal walls and partitions to the center axes; thickness of walls and partitions, as well as dimensions of openings in internal walls and partitions; dimensions of holes in the floors. Remember that the sum of the sizes for each section can be easily calculated along the length of the wall. She equals her.
Projections of the building, which can be viewed from the front, rear, right, and left along the vertical plane - is the facade. The figures indicated for its contour in the drawing denote elevation marks from the ground level. If you see the axes of walls or columns in the facade drawing, this will help you determine which type of facade is depicted in this diagram. It is possible to determine by the cuts in the scheme what the dimensions of the building are between the extreme axes, what is the level of the earth, the distance from floor to floor, the size of the openings, the height of the openings, the marks where the stairs should be.
The drawing of the house on the site will allow you to determine how you can plan the use of the site, where to make entrances and approaches to the house, how you can green and landscaped territory. If you want to bring these ideas into the drawing, you will need to calculate them exactly by the standards of the scheme and then already have on the plot drawn, of course, keeping to the required scale.