Foundation Plans

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Foundation Plans
Mr. Sackett
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Foundations

• What is a foundation? What does it do?
• Lowest structural component of a building upon
  which all other members rest
• How are foundations built?
• Depends on the nature of the soil, slope of the
  terrain, the size and weight of the structure,
  the climate, building laws, and relationship of
  the floor line to the grade line.

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Types of Foundations

• Wood post piles
• Steel and concrete piles
• Wood post columns
• Masonry columns
• Concrete columns
• Concrete piers
• Slab foundation
• T-foundation

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Types of Foundations
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Footings

• Footings- the bases of foundations and foundation
  walls.
• Two Types
• Continuous-extend under walls, distribute weight
  around perimeter foundation often wider than
  foundation wall
• Individual-support vertical structural members

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Not all ground is flat!
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Concrete Slab Foundation

• Use floor plan dimensions to lay out exterior
  edge of the slab.
• Lots of concrete and rebar used
• Can be one piece or multiple pieces

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T-Foundation Plan
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What Holds Up Your House?
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What Does a Foundation Plan Look Like?
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Foundation Detail (Finished Basement)

• Finished basements have stairs
• Label Floor Joist Sizes
• Make sure to have supportive columns for your
  floor beams
• Dimension, Dimension, Dimension
• Notice Different Widths
• 8Concrete Block
• 12Poured Concrete Wall
• 20 (Could be 24)Footer

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Foundation Detail (Crawl Space)

• No stairs
• Additional support for floor beams
• Vents and Access areas

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The Reason We Use 8 Block on Top

• If you want Brick Veneer you have to leave room
  for it on your foundation

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The Reason we have supportive columns (pg. 687)
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Supportive Columns
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Supportive Columns in Practice
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Plan Out Your Drawing

• Use your floor plan to outline your foundation
  plan
• From there figure out how you will lay out your
  floor joists so that you will know where to put
  your supportive columns
• Make your footers 24 and decide what foundation
  style you will use

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Think About Your Floor Plan

• Figure out how your floor joists will span your
  foundation and where you will need supportive
  columns (pg. 498)