Code Applied by the app elec.emt.support
EMT support spacing
Where EMT is strapped, within 3 ft of every box or termination and at least every 10 ft along the run, which is the strap count on a takeoff.
| When | The app uses |
|---|---|
| from each box or other termination | 3 ft |
| between straps on the run | 10 ft |
- Source
- NEC · 358.30(A) · read the public text
- Editions checked
- 2017 · 2020 · 2023
- Used by
- Courses
- Amendments
No state or local amendment to this rule is on file. Not on file means the model code as written — check your jurisdiction.
A model code the authority having jurisdiction adopts.
EMT is fastened near every place it ends and at a fixed interval between: within 3 ft of each box or other termination, and no more than 10 ft apart along the run. On a takeoff that is a strap per 10 ft of conduit, plus the ones at the ends of each run.
On a bid a strap is cheap and the labor to set it is not, and they add up by the hundred on a job with any conduit, so they belong in the count rather than in a guess.
What the app does with it
The electrical course teaches it on a card (Chapter 4, A support row of your own), where the reader writes a Strap row under the conduit line type's Child counts by hand, and check-lesson-rules holds the card's numbers to this rule. The app does not yet offer the row the way it offers hangers for pipe.
Verify against your edition
358.30(A): fastened within 3 ft of each box, cabinet, conduit body or other termination, and at least every 10 ft. Its exceptions allow 5 ft from a termination where the framing will not take a fastener within 3 ft, and unbroken lengths fished into finished work; a specification may ask for tighter spacing. Local amendments still govern.
Settled 2026-09-27 by Claude on the owner's delegation, from the dossier's research and the model code text; not checked against a printed book or a local amendment.
Cited by section, not reprinted: the code text belongs to its publisher. Company practice is not a rule here — it lives with your pricing.