ELECTRICAL · POWER / LIGHTINGTRADE · ELECTRICAL

Fixture counts, schedules, symbols, confidence flags.

Symbol legends and fixture schedules do not agree. BuildBid shows you where, up front.

Electrical takeoff is a symbol-recognition problem against a legend that is often incomplete or inconsistent. BuildBid reads the E-series symbol legend, extracts counts per symbol across the plan set, and cross-references against the fixture schedule to flag mismatches.

Receptacles, switches, data drops, and lighting fixtures are counted per sheet and per circuit where circuiting is legible. Panel schedules are extracted as structured data — circuits, breaker sizes, loads — so you can reconcile against the fixture totals before bid.

Confidence flags do real work here. Lighting symbols often vary across sheet families; BuildBid flags low-confidence matches as open questions instead of silently normalizing them into the nearest legend entry.

Try on a sample electrical packageSee sample takeoff
WORKFLOW · HOW IT ACTUALLY RUNS5 STEPS
  1. STEP 01

    Upload E-series + schedules

    Power plans, lighting plans, symbol legend, fixture schedule, panel schedules, riser diagrams. Specs sections 26 are cross-read for scope confirmation.

  2. STEP 02

    Symbol legend matched

    Each symbol on the plan is matched to its legend entry. Unmatched symbols are flagged as open questions rather than forced into the nearest legend match.

  3. STEP 03

    Devices + fixtures counted

    Receptacles, switches, data drops, lighting fixtures tallied per sheet and per area. Counts tied back to the sheet region so a spot-check is one click.

  4. STEP 04

    Schedule cross-read

    Fixture schedule and panel schedules extracted as structured rows. Plan counts vs. schedule quantities reconciled and any mismatch flagged before the draft is closed.

  5. STEP 05

    Review + export

    Estimator sweeps low-confidence symbol matches and schedule mismatches first. Export to CSV or into a BuildBid estimate with circuit-level detail preserved.

PAIN · WHAT THIS REPLACES

Where the hours actually go today

  • Symbol legend mismatches across sheets — the legend on E-101 does not fully match E-201, and the takeoff tool bundles the difference.
  • Fixture schedule and plan count disagreeing with no workflow to reconcile — the estimator finds out at closeout.
  • Panel schedule data re-typed from PDFs into the estimate with transcription errors.
  • Lighting count burdened by sheet-to-sheet symbol drift that quietly inflates or undercounts the fixture package.
LIMITS · WHAT BUILDBID IS NOT YET

Honest gaps — read before you buy

  • Conduit and wire length takeoff by path inference is not fully automated today — current output counts devices and fixtures; conduit routing still wants a dedicated tool for tight bids.
  • Low-voltage / fire-alarm / security scope is flagged as distinct but the device-type extraction is less mature than power and lighting.
  • Panel riser and one-line diagrams are extracted as images with OCR, not as structured graph data — you still validate the one-line manually.
  • Equipment connections from mechanical drawings (pumps, RTUs, etc.) require the mechanical plan set to be included; otherwise flagged as unknown.
REVIEW FOCUS · WHAT TO CHECK3 AREAS
CHECK 01

Symbol legend matching view — legend on left, plan symbols on right, unmatched flagged in warn-tone.

CHECK 02

Fixture schedule cross-read — plan count vs. schedule quantity per fixture type, mismatches highlighted.

CHECK 03

Panel schedule extraction — circuits, breaker sizes, loads rendered as structured rows from the PDF.

NEXT · TRY ON A SAMPLE

Sample plans, zero setup. The draft comes back with quantities, confidence flags, and the source rows we used. You review before you send.

Try on a sample electrical package