Takeoff that remembers where the number came from.
Quantities with provenance
Every line in a VoltDrop takeoff carries the sheet, detail, or specification section it was derived from, plus the review state of that line. A quantity that could not be confirmed is marked open rather than rolled into the total as though it were certain.
That means a scope review becomes a matter of opening the source, not reconstructing somebody else’s reasoning from memory.
Source reference
The sheet and revision the quantity came from, carried on the line item itself.
Review state
Confirmed, review required, or open. Nothing is silently promoted to confirmed.
Assumption record
Where a quantity depends on an assumption, the assumption is written down next to it.
Revision awareness
When an addendum changes something a quantity depended on, that line is flagged rather than quietly recalculated.
What gets quantified
Electrical takeoff is not one activity. Device counts, raceway and conductor lengths, equipment, and assemblies each come from different places in the set and carry different risk.
- Branch devices — receptacles, switches, sensors, and special-purpose outlets
- Lighting fixtures and controls by type and mounting
- Distribution equipment — switchboards, panelboards, transformers, disconnects
- Feeders and homeruns as runs, with conductors and raceway derived from the run
- Raceway and conductor quantities tied to the circuit they serve
Counting is not the hard part
Software has been able to count symbols on a page for a long time. What has been missing is the part that makes a count meaningful: knowing which panel a device lands on, which feeder serves that panel, and what it takes to get the conductors there.
VoltDrop is built around those relationships. The quantity falls out of the relationship rather than the other way around.
RELATED
- Electrical Material TakeoffTurn electrical project information into structured material takeoff data — conductors, raceway, fittings, and equipment tied back to their source documents.
- Electrical Estimating SoftwareElectrical estimating software built around the electrical system, not just object counts. Structured scope, feeders, runs, and reviewable calculations that carry into your estimate.
- Electrical Homerun SoftwareOrganize homeruns and branch circuiting as structured runs. Connect devices to circuits, circuits to panels, and panels to the distribution system.
- Electrical Scope AnalysisReview electrical drawings, specifications, schedules, and addenda together. Surface scope conflicts, missing information, and unresolved responsibility before they become change orders.
Understand the job before you bid it.
VoltDrop is in early access with a limited cohort of electrical contractors. Join the Founding Contractor program and help shape what gets built next.