220.11 Floor area
What changed in 220.11
The method for measuring floor area moved out of the lighting load section into its own section.
Point by point
- Moved from 220.12 in the 2017 NEC® to its own section, 220.11.
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- 3 more points on exactly what changed
- The 2017 rule next to the 2020 rule, side by side
- Why it changed
- What to do and check on the job
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This section across NEC® editions
2020 NEC®MovedYou're here
The method for measuring floor area moved out of the lighting load section into its own section.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 220
This is a plain-English summary, not the NEC®'s exact wording. Always check the full section in the NEC® edition your area has adopted, plus any local amendments.
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