1. Drawing Interpretation
Residential Plans and
Drawing Interpretation
Module

2. Upon completion of this module, you will be able to:
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Objectives
Upon completion of this module, you will be able to:
1. Explain the organization of residential plans and drawings.
2. Interpret dimensions and scales on drawings.
3. Interpret information on residential plans.
4. Estimate material quantities from plans and drawings.

3. 2. Estimate the amount of brick and mortar from that same elevation.
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Performance Tasks
1. From a plan, calculate the square footage of one elevation, including openings.
2. Estimate the amount of brick and mortar from that same elevation.
3. Estimate the size and number of lintel blocks for that same elevation.

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Figure 1 – Typical Format of a Set of Working Drawings

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Figure 2 – Sample Legends

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Figure 3 – Drawing Lines

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Figure 4 – Methods of Labeling Section Reference Lines

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Figure 5 – Typical Materials Symbols

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Figure 6 – Common Methods of Indicating
Dimensions on Drawings

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Figure 7 – Dimension Measurements on an Exterior Wall

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Figure 8 – Measuring Partition Walls

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Figure 9 – Measurements Taken from the Center of the Opening

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Figure 10 – Measurements Taken from the Side of the Opening

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Figure 11 – Common Sizes for Plans and Drawings

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Figure 14 – Typical Site Plan Showing Topographic Features

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Figure 15 – Foundation Plan

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Figure 16 – Detail Drawing for Foundation Wall

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Figure 17 – Types of Slabs

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Figure 18 – Floor Plan for Residence

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Figure 19 – Elevation Drawings

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Figure 20 – Interior Elevation Drawings

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Figure 21 – Full Building Section

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Figure 22 – Full Wall Section

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Figure 23 – Electrical Wiring Symbols

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Figure 24 – Residential Electrical Plan

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Figure 25 – HVAC Symbols

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Figure 26 – Surface Area of a Standard Block

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Figure 27 – Rectangular Block Structure

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Figure 28 – Rectangular Building with a Door and Windows

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Table 1 – Modular Brick and Mortar Required for
Single-Wythe Walls in Running Bond

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Table 2 – Material Quantities for Single-Wythe
Concrete Masonry Construction

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Figure 29 – Material Quantities for
100 Square Foot Area of Composite Walls

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Table 3 – Quantities of Materials Needed
for a Cubic Yard of Mortar

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Table 4 – Volume of Grout in
Two-Wythe Grouted Concrete Brick Walls

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Table 5 – Volume of Grout in Grouted
Concrete Block Walls