G-9

TLE
MASONRY
Module 3

Department of Education • Republic of the Philippines

TLE – Grades 9
Alternative Delivery Mode
Module 3: Lesson 3– INTERPRETING TECHNICAL DRAWINGS AND
PLANS

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Published by the Department of Education

Secretary: Leonor Magtolis Briones
Undersecretary for Curriculum: Diosdado M. San Antonio

Development Team of the Module

Writer: Jimmy V. Tipono

Editor: Lalaine V. Fabricante
Illustrator/Layout Artist: Kishelle D. Tipono-Valencia
Management Team:
Gilbert T. Sadsad, Regional Director
Jessie L. Amin, Assistant Regional Director
Francisco B. Bulalacao Jr., CLMD Chief, ROV
Christie L. Alvarez, Regional EPS in EPP/TLE/TVL
Loida N. Nidea, Schools Division Superintendent
Susan S. Collano, Assistant Schools Division Superintendent (Secondary)

Department of Education – Region V

Office Address: ____________________________________________

Department of Education • Republic of the Philippines

fax: ____________________________________________
E-mail Address: ____________________________________________

G-9

TLE
Module 3
Lesson 3

INTERPRETING
TECHNICAL
DRAWINGS AND
PLANS

Department of Education • Republic of the Philippines

INTRODUCTION
In this lesson, the learner demonstrates understanding of the concepts
and underlying principles interpreting simple technical drawing s and plans in
Masonry works.

Objectives

At the end of this lesson, you should be able to:

1. analyze signs, masonry symbols and data.
2. interpret technical drawings and plans

Vocabulary List

Building Plan is a blueprint made up of many drawings of plans.

Details typical parts of a structure or design, made to a larger

scale or full size.

Elevations are views of the building from the outside.

Floor Plan an architectural plan of the room and other spaces on the
floor of the building.

Perspective refers to overall view of a building as we see it from the

front, the side, and the top.

Scaling a system of designated measurements in which a fixed

proportion is used.

Symbol are used to make reading and interpreting the building

plan easy.

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 SELF – CHECK 1.1
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Direction: Identify the following Plan Symbols.

1.

2.

3.

4.

5.

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INFORMATION SHEET 1-1

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What’s New?
Discover

View Online Video: Learn by Viewing on the

“introduction to technical drawing”
https://www.youtube.com/watch?v=YE0oZZO7vbk

Then do Self-Check 1.1 to know your level of

understanding.

Read Lesson Information closely and find

out how much you can remember. Then
do Self-Check 1.1and Activity to know
how much you have learned.

Read Lesson Information closely and find

out how much you can remember. Then
answer Self-Check 2.1and do, Activity and
Perform Task Sheet 2.3 to know how much
you have learned.

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 INFORMATION SHEET 2-1

INTERPRETING THE
BUILDING PLAN
A building plan is a blueprint made up of
many drawings of plans. It has floor plans, an elevation, and sectional
views, framing plan for each floor and a plan of the roof. These plans are
done either by a civil engineer or an architect. In some instances, the
designer oversees the work itself, who, in most cases, is the contractor.

The architect discusses with the customer the type of residential

house to be built and draws rough sketches of what the owner perceives
the house to be. The sketches will then be finalized and if approved by the
owner, will finally be drawn on scale.

It is important to know how to read and interpret a blueprint for a

building to work on. It is not necessary for a worker to know how to draw
a building plan, but the knowledge on how to read and interpret it is very
important. The carpenter must know what to do and how to do it and
where it is to be done.

Details on blueprints and symbols are standardized. One these are

understood, there will be no problem in working on the project.

Plans and specifications are reproduced for the owner, the

contractor, and the workers. They serve as guide until the building is
completed.

Set of Plans

A set of plans consists of the lot plan, the elevations including the
front view, side view, back view, the floor plans, sections, and the
foundation plan.

Other drawings show the electrical and plumbing plan complete with
details including kitchen cabinets, doors, and windows, and all other parts
of a house.

Framing details for the roofing, partitions,

floors and stairs are meticulously drawn in a clear and
easy to understand presentation.

Floor Plans

If you cut the building horizontally about one meter

high and look at the floor from the top, you are viewing

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the floor plan. The plan shows the location of bedrooms, the living room,
the dining room, kitchen, and comport rooms, including the garage,
terrace, and porch, among others.
The floor plan shows the size and position of the different rooms in
relation with the rest of the rooms. This is the first plan that the owner
should see in order to decide before a designer proceeds in drawing the
rest of the building plans.

Dimension lines are used in all the plans to show the size of the
rooms and the building itself.

Elevations

Elevations are views of the building from the outside. The building
is drawn as seen in front, from the left, and right sides, and viewed at the
back.

Before construction starts, the owner should be satisfied with the

appearance of the house. House owners are proud of their houses and
want these to be beautiful inside and as viewed from the outside.

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 Information given by the elevation plan includes floor level, height
of the building, window and door sizes, and the type of materials used on
the walls and roofs.

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The Perspective

Perspective refers to overall view of a building as we see it from the

front, the side, and the top.

This view gives the owner and the one who will construct the house
a picture of how it will look like when finished. After reviewing all the
plans and the owner is satisfied, construction of the house may start.

Sections

If a building is cut vertically into two, and we look at it on the left

or on the right, we see the view of the sections of the building.

We can see the different parts of the building and how they fit
together, from the footing to the roof. We can interpret the building plan
thru the section views.

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 Details

Details are drawn to show connections which cannot be seen in all

the plans. Usually these are small details that cannot be included in any
of the plans.

Details can be drawn for the floor elevation, ceiling and roof, the
doors and the windows and how these are attached, including the
kitchen cabinets.

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 Symbols
Symbols are used to make
reading and interpreting the plan easy.
They are usually used for electrical and
plumbing details. You may find the
plan difficult to read at first, but once
you know what the symbols mean,
reading and interpreting them will be
easy.

Scaling
You cannot interpret and appreciate a blueprint unless you
understand scaling. All plans are drawn to a scale.

An example of scaling in the English system of measurement is the

¼” : 1’ scale. This means that on paper, the measurement is 1/4” but when
actually laid out in its setting, ¼” is equivalent to one foot.

If the building plan shows that the length of the buildings is 10 feet,
the actual length on the drawing paper is 21/2”.

At the bottom of the drawing paper you can see the scale used. If the
scale says ¼” : 1’, this means that every ¼” on the drawing paper is
equivalent to one foot in the actual construction.

In case the dimension cannot be found, the drawing in the plan can
be measured. If the distance is said to be 3 ½” this means that the distance
in the actual construction is 14 feet.

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Self-Check 2-1

1. A building plan that shows the location of bedrooms, living room,

dining room, kitchen, and comfort room.

2. It is a blueprint made up of many drawings of plans.

3. The view of the building from the side, top, and front.

4. It is the view of the building from the side, top, and front.

5. Used by the architect and engineers to make reading and

interpreting of plans easy.

Answer Key 1-1

1. Column reference grids

2. Concrete block
3. Wall section or elevation / Reference drawing number
4. Test boring
5. Stair direction symbol

Answer Key 2-1

1. Floor plan
2. Building plan
3. Perspective
4. Elevation symbols.

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References:
Commercial Cooking, Exploratory Course Grade 7/8
K to 12 Basic Education Technology and Livelihood Education, Learning Module

http://www.youtube.com/watch?v=nn07bsfaIk_I

https://www.youtube.com/watch?v=mjB3DJFIP_M

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