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• IBC 1807.1

  Foundation walls

  • Requirements for foundation walls; see linked sections.

  Works withIBC 1807.1.1IBC 1807.1.6IBC 1808

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2

  Retaining walls

  • Requirements for retaining walls; see linked sections.

  Works withIBC 1807.2.1IBC 1807.2.4

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3

  Embedded posts and poles

  • Requirements for embedded posts and poles; see linked sections.

  Works withIBC 1807.3.1IBC 1807.3.3

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.1

  Design lateral soil loads

  • Requirements for design lateral soil loads; see linked sections.

  Works withIBC 1610

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.2

  Unbalanced backfill height

  • Requirements for unbalanced backfill height.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.3

  Rubble stone foundation walls

  • Rubble stone foundation walls at least 16 in thick; not in SDC C–F.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.4

  Permanent wood foundation systems

  • Requirements for permanent wood foundation systems; see linked sections.

  Works withIBC 2303.1.9.1

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.5

  Concrete and masonry foundation walls

  • Requirements for concrete and masonry foundation walls; see linked sections.

  Works withIBC 1807.1.6IBC Chapter 19

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6

  Prescriptive design of concrete and masonry foundation walls

  • Requirements for prescriptive design of concrete and masonry foundation walls.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.1

  General

  • General scope for Section 1807.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.2

  Design lateral soil loads

  • Requirements for design lateral soil loads; see linked sections.

  Works withIBC 1610IBC 1803.2

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.3

  Safety factor

  • Retaining walls resist sliding and overturning with a 1.5 safety factor (1.1 with earthquake).

  Works withIBC 1605

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.4

  Segmental retaining walls

  • Requirements for segmental retaining walls.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.5

  Guards

  • Requirements for guards; see linked sections.

  Works withIBC 1807.2.5.1IBC 1807.2.5.3

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.1

  Limitations

  • Requirements for limitations.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.2

  Design criteria

  • Requirements for design criteria; see linked sections.

  Works withIBC 1807.3.2.1IBC 1807.3.2.3

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.3

  Backfill

  • Post holes are backfilled with 2,000 psi concrete (hole 4 in larger), tamped clean sand in 8 in lifts, or CLSM.

  Works withIBC 1808

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.1

  Foundation wall thickness

  • Requirements for foundation wall thickness; see linked sections.

  Works withIBC 1807.1.6.2IBC 1807.1.6.3

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.2

  Concrete foundation walls

  • Prescriptive concrete foundation walls per Table 1807.1.6.2: f'c 2,500 psi, Grade 60 bars, cover ¾ in inside and 1½–2 in outside. Example: 8 ft wall, 7 ft backfill, 60 psf/ft soil, 7.5 in wall: #6 at 43 in.

  Works withIRC R404.3IBC 1610IBC 1807.1.2IBC Table 1807.1.6.2IBC Table 1610.1

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.3

  Masonry foundation walls

  • Prescriptive masonry foundation walls per Tables 1807.1.6.3(1)–(4), Type M or S mortar, 4 in solid masonry at girder bearing.

  Works withIRC R404.3IBC 2103.3IBC 2103.2.1IBC 2104.1IBC 1610IBC 1807.1.6.2IBC 1807.1.2IBC 1807.1.6.3.1IBC Table 1610.1IBC Chapter 21

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.5.1

  Where required

  • Public retaining walls within 36 in of a walking surface with a drop over 30 in need a guard.

  Works withIBC 1015.2IBC 1607.9

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.5.2

  Height

  • Retaining wall guards meet 1015.3 heights.

  Works withIBC 1015.3

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.2.5.3

  Opening limitations

  • Requirements for opening limitations; see linked sections.

  Works withIBC 1015.4

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.2.1

  Nonconstrained

  • Requirements for nonconstrained; see linked sections.

  Works withIBC 1806.2

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.2.2

  Constrained

  • Requirements for constrained; see linked sections.

  Works withIBC 1806.2

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.3.2.3

  Vertical load

  • Requirements for vertical load; see linked sections.

  Works withIBC Table 1806.2

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.2.1

  Seismic requirements

  • Requirements for seismic requirements; see linked sections.

  Works withIBC 1613IBC 1905.6.2IBC Table 1807.1.6.2

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.3.1

  Alternative foundation wall reinforcement

  • Requirements for alternative foundation wall reinforcement; see linked sections.

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

• IBC 1807.1.6.3.2

  Seismic requirements

  • Requirements for seismic requirements; see linked sections.

  Works withIBC 1613

  International Building Code, 2024 · Chapter 18, Soils and FoundationsRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.