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Discussion Starter · #1 ·

This thread has been opended to give basic information about designing; how architects design, which factors do they consider when designing, technical informations, architectural concepts and so on.

The purpose of the thread is initially to have architectural conversations as much as possible, and try to share informations for those who are interested.


1)Only one subject is going to be mentioned per day. It is possible to argue about the subject of the day, asking questions etc.

2)Whoever wants to make a presentation for the day, has to enough knowledge about the subject, and know whats hes talking about. I.E, the information has been given must be absolutely true, so that whoever interested, they can rely on the informations that has been shared here.

3)The informations which are going to be shared is going to be about technical stuff, i.e, how to draw. That way, whoever reads here, will have
the enough capacity to take a sheet of paper and draw architecturally.

4)Presentations have to be in english language.

12,043 Posts
Discussion Starter · #2 ·
Drawing a Site plan

In Architecture, we have 3 fundamental drawings: plans, elevations and sections. They are all 2D drawings and derived from the concept of orthographic projection. These 3 type of drawings can be used either to construct a building (working drawings), or to communicate ideas.

These 3 fundamental drawings, have also mini groups inside them. For example; For the title of 'plan' drawings: we have; 6 types;

-Floor plan
-Roof plan
-Reflected ceiling plan
-Partial Plan
-Site plan
-Figure ground plan

Today, we will learn about the 'site plan', considering its the most preliminary drawing of the architect. A site plan is the drawing that the architect has to produce before the other drawings.

Ok. lets start, take a sheet of paper and a pencil.
we will go step by step.

Normally, when a specific site is known, we would have the measurments, and draw according to that. But considering we dont have a specific site right now. We will just draw from imagination, or you can draw the site plan of any place you want.

Step1) Determine the scale.

Scaling is very important in architectural drawings, it is absolutely fundamental. I suppose most of you know what scale is, but i will explain anyway:

When we make technical drawings, we have to draw the objects true shape with true mesasurments. But the problem is when we have big objects like buildings, we cant fit that on the paper, so what do we do? we use scales. It is a very simple concept actually, for example when you see '1:2' that means every 1 cm in the drawing is, in reality 2 cm. For floor plans and elevations, architects usually use 1:50 scale, but for site plan 1:500 would be a good scale.

So for our work; you can choose 1:500 for the scale. Dont forget, that means; if you want to draw a line which is for example 10 meters long in reality, in 1:500 scale drawing, you will have to draw 2 cm in your drawing, and that wil represent the 10 meters long line.

An additional information about scaling: in the software applications like Autocad, you draw using the true mesasurments, and when you print, you can choose the scale, and it ill print with that scale. So thats why softwares like autocad are very useful.

Step 2) Draw the property lines.

Ok, we now have our paper and pencil,and a ruler of course, and we choosed our scale. now the first thing you have to draw is the 'property lines'.

What is a property line? Property line is the line that shows the boundry between seperate properties. We have a site, but which portion of that site belongs to us? we have to show that in our paper.

Considering we are drawing from our imagination. You can draw anything, but try to stay loyal to the measurments that you have decided in your mind so that you can work with scale a little bit.

Another issue: in architecture we have different types of lines, and each type represent a different thing. For property lines we draw one long line and two short lines, as shown here;

Did you draw your proptert lines? Dont forget, it will define an area, it can be rectangular, or triangle, considering we are drawing from our imaginations.

Step3: Draw the proposed structure.

When we draw our proposed structure to our site view, we only draw the outline of it.

Determine the measurments of the proposed structure.

This image, shows the property lines, and the proposed structure together;

Step4: Draw roads,driveways,walks, utilies, and other structures

You also need to show the structures that are out of the property line. I:E
Existing buildings, but of course with true dimensions. Everything has to be
in true dimensions when drawing technical.

Step5: Add dimensions

This is how architects show dimensions of a line:

Step6: Complete the drawing by adding the north arrow.

when drawing site plan, we always show where the north is, thats very important.

This image shows the final site plan,

ok now try to draw yours, stay loyal to your scale, and draw the site plan of anywhere you want, but again determine the dimensions before you draw.
Propose a simple house, and the draw the outside of it in the site plan, draw roads,trees, other structures outlines and any other thing whichs there.

you can send me your works, and ask quesitons. we will talk all about it.

12,043 Posts
Discussion Starter · #3 ·

Lines are the primary method of displaying images on architectural drawings. The lines must accurately and clearly represent the drawing content.There are a variety of line types found on drawings. Each type of line conveys a different meaning. Lets check out what type of lines we have in architecture, and for what reason we use them.

Object Lines

Object Lines also called visible lines, are used to show the main outline of the building, including exterior walls, interior partitions, porches, patios, driveways, and walls. These lines should stand out on a drawing.They are thick and continues, and again they define the outline of an object. See the picture;

object lines again;

Dimension Lines:

Dimension Lines are thin unbroken lines that show the width or size of objects. Typically have arrowheads on the ends. But in architecture, we dont use arrowheads, but we use architectural thick mark when we dimension.

see the engineering dimension lines, and secondly see the architectural dimension lines. Same thickness but one with the arrowheads, the other with the architectural thick marks.



Extension Lines:

Extension Lines are the lines from the object lines to the dimension lines. Usually drawn thinner than object lines to avoid confusion.

Hidden Lines:

used to show area that are not visible from the view direction of the drawing. They are not continues lines but dashed. as shown here;

Center lines:

They denote the middle of symmetrical objects such as exterior doors and windows.

Cutting- Plane Line:

well for the next presentation, i will talk about orthographic projection, so you can understand better what a cutting plane line is. but to give an idea, simply we image to cut a building vertically by a plane, and that plane is called the cutting plane.For now, just keep in mind how it looks like, notice there are arrows on each ends.

Break Lines:

are used to show an area that could not be shown completely on a drawing. Can be used to shorten an object or to cut away part of an object.

Construction Lines

Used as a reference for use before object line locations are certain

notice how light they are

Also check this picture;


12,043 Posts
Discussion Starter · #4 ·
Presentation 3: Part 1: Floor Plan Drawing

When architect start to design a building, they usually start with drawing the floor plan first, then they project, elevation and section drawings from the floor plan. Floor plan is one of the most important architectural diagrams, it shows the horizontal distances, locations of windows and doors, and other features,relationship of the rooms.

According to the orthographic projection concept: a floor plan is actually a horizontal section. We imagine to cut the building by a plane, (horizontally), (if we d cut vertically, that d be a building section drawing), conceptually; for the floor plan, our horizontal plane places 1.2 meters above the floor level. (refer to the picture below)

above is the basic concept of the floor plan. ok now we start, we ll go step by step. ill be using rhinoceros 5 for drawing, you can either download it for free, or if u have autocad, u can use it, its very similar, or simply you can just take a pencil and ruler and draw what we are doing here. but dont forget, when we are drawing using computer aided softwares, we draw the real dimensions, but when you are drawing by hand, you have to stay loyal the scale you have determined before, and calculate how long your line should be according to your scale.

we ll do a very a basic shape, its gonna be a rectangle,

Step1) Draw the outline of your floor plan

our lenght is 20 meters, our width is 10 meters. so a draw a rectangle which is 20x10

Step 2: Determine the wall thickness and draw

We will go 15 cm for our exterior wall thickness. If you are using softwares, you can use the command 'offset' , if you are drawing by hand, you ll have to draw.

we ll end up with this:

Step 3: Draw the internal walls

Start from the left mid point, draw a line towards the inside of the floor, which is 8 meters long, and do the same operation (reverse) starting from the right mid point.Then offset the lines 10 cm. Thats going to be our internal wall thickness. refer to the picture below:

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