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Construction Reference Charts
The numbers you look up mid-task — conductor ampacities, conduit fill areas, grounding conductor sizes — as fast, complete charts with the governing code section cited on every page. Electrical is live now; more trades are on the way. When you need to compute instead of look up, the NORDIX calculators run the same underlying data.
3 charts live · more on the way
ELEC
Electrical
Conductor, conduit, and grounding look-up charts for sizing and code checks.
- AMPNEC 310.16Wire Ampacity ChartCopper and aluminum conductor ampacities at 60°C, 75°C, and 90°C, from 14 AWG to 1000 kcmil.
- FILLNEC Chapter 9, Tables 1 & 4Conduit Size & Fill ChartUsable wire-fill area by trade size for EMT, IMC, RMC, and PVC Schedule 40/80 conduit.
- GNDNEC 250.122Ground Wire Size ChartMinimum copper and aluminum equipment grounding conductor size for each breaker or fuse rating.
- DIMSOONWire Dimensions ChartDiameter and cross-sectional area by insulation type (THHN, XHHW, and more).
- Ω/kftSOONWire Resistance ChartDC resistance, stranding, and bare-conductor properties by AWG and kcmil size.
- ×0.8SOONAmpacity Correction & Adjustment FactorsAmbient-temperature correction and conductor-bundling adjustment multipliers.
- GECSOONGrounding Electrode Conductor ChartGEC sizing from the service-entrance conductor size.
- OCPSOONTransformer Overcurrent Protection ChartMaximum primary and secondary protection percentages for transformers over and under 1000 V.
- FLASOONMotor Full-Load Current ChartFull-load amps by horsepower and voltage for single- and three-phase motors.
- MAXSOONTHHN Conduit Wire Capacity ChartPre-computed maximum THHN conductor counts per conduit type and trade size.
Run your whole job on the same numbers
These NORDIX tools are a taste of the full platform — bid pipeline, estimating, and job costing that carry your numbers from the first bid to the final invoice.
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