# Anvilfield

Offline field tools and practical field guides for construction, service, commissioning, inspection, and trade crews.

Primary site:
- https://anvilfield.com/

Core publishing routes:
- https://anvilfield.com/field-guides/ - practical jobsite answers by trade
- https://anvilfield.com/blog/ - field notes and blog posts

Trade hubs:
- https://anvilfield.com/field-guides/electrical/ - Voltage drop, PoE, EV feeders, cable pulling, switchgear receiving, grounding, and power QA.
- https://anvilfield.com/field-guides/concrete/ - Slump, air, temperature, evaporation, joints, scanner maps, baseplate grout, anchors, and pour records.
- https://anvilfield.com/field-guides/hvac/ - External static pressure, CFM, duct leakage, charging, balancing, and commissioning notes.
- https://anvilfield.com/field-guides/plumbing/ - Backflow repair, DWV venting, hydro tests, water mains, pools, service proof, and chemical dosing.
- https://anvilfield.com/field-guides/datacenter/ - Receiving, raised-floor acceptance, rack readiness, floor loading, QA packets, and turnover records.
- https://anvilfield.com/field-guides/roofing/ - Crickets, tapered insulation, wind zones, ELD surveys, underlayment laps, coatings, and roof proof.
- https://anvilfield.com/field-guides/paving/ - Compaction windows, striping layout, lot assessments, force-account logs, and material slips.
- https://anvilfield.com/field-guides/landscaping/ - Turf rates, pavers, irrigation audits, drainage slopes, retaining walls, and site work calculations.

Representative field guides:
- https://anvilfield.com/field-guides/paving/asphalt-compaction-window-guide/ - The compaction window is the time and temperature range where the mat can be compacted effectively before it cools too far for the roller pattern to work.
- https://anvilfield.com/field-guides/plumbing/backflow-failed-test-repair-checklist/ - A failed backflow test should produce a repair path, not just a failed number. Capture the assembly, failure mode, parts used, photos, retest result, and signoff.
- https://anvilfield.com/field-guides/electrical/poe-voltage-drop-and-heat-quick-check/ - PoE checks need both voltage drop and heat awareness. Distance, cable gauge, bundle size, ambient temperature, and device class can all change whether a run is acceptable.
- https://anvilfield.com/field-guides/electrical/ev-feeder-sizing-walkthrough/ - EV feeder planning starts with the charger load and continuous-load treatment, then checks route, conductor, voltage drop, overcurrent protection, and documentation requirements.
- https://anvilfield.com/field-guides/concrete/concrete-slump-test/ - A slump result should be judged with the mix design, project tolerance, sampling method, timing, and any water-added decision. Do not accept or reject a truck from a number alone without the required context.
- https://anvilfield.com/field-guides/hvac/duct-static-pressure/ - High external static pressure usually means the blower is working against more restriction than intended. The cause can be filter, coil, duct size, dampers, grilles, transitions, or measurement setup.
- https://anvilfield.com/field-guides/electrical/voltage-drop-field-guide/ - Voltage drop is the voltage lost in a conductor while current flows through it. Many designs use 3 percent for branch circuits and 5 percent total feeder plus branch circuit as a target, but project documents and equipment requirements control the decision.
- https://anvilfield.com/field-guides/datacenter/raised-floor-acceptance-packet/ - A raised-floor acceptance packet should connect the floor grid, elevation checks, panel condition, pedestal/base observations, photos, punch items, and responsible signoff into one reviewable record.

Representative blog posts:
- https://anvilfield.com/blog/switchgear-receiving-before-unload/ - Switchgear receiving records before the truck leaves: A useful receiving packet proves what arrived, what was damaged, what was missing, and how the gear was protected after unload.
- https://anvilfield.com/blog/roofing-tapered-insulation-before-membrane/ - Tapered insulation records before membrane install: A useful roofing packet proves the tapered layout, drain sumps, crickets, saddles, board fit, attachment, cover board, photos, and exceptions before membrane hides the work.
- https://anvilfield.com/blog/plumbing-hydro-test-before-backfill/ - Plumbing hydro test records before backfill or cover-up: A useful plumbing test packet ties the pipe section, test method, pressure or head, inspection hold point, photos, leaks, corrections, and release decision to the work that is about to disappear.
- https://anvilfield.com/blog/landscaping-irrigation-audit-before-turnover/ - Irrigation audit records before landscape turnover: A useful irrigation turnover packet connects the zone map, controller program, catch-can data, leaks, overspray, sensor status, repairs, photos, and owner handoff.
- https://anvilfield.com/blog/hvac-static-pressure-before-duct-changes/ - Static pressure records before blower or duct changes: A useful HVAC record ties the complaint, equipment, blower setting, filter, coil, measurement points, static readings, and after-change result together.
- https://anvilfield.com/blog/hvac-duct-leakage-before-balancing/ - Duct leakage records before balancing starts: A useful pre-TAB leakage packet ties the test scope, pressure, allowable limit, measured flow, repairs, retest, and release status together.
- https://anvilfield.com/blog/electrical-ev-feeder-before-rough-in-closeout/ - EV feeder records before rough-in closeout: A useful EV rough-in packet ties the charger model, approved load, breaker/output setting, route, conductors, raceway, labels, inspections, photos, and commissioning handoff together before the work is covered.
- https://anvilfield.com/blog/datacenter-rack-readiness-before-cabinets/ - Rack readiness records before cabinets roll in: A useful datacenter rack-readiness record ties the row, cabinet IDs, route, floor/grid condition, power, cable, airflow, grounding, stabilization, photos, and open exceptions together before cabinets block the work.
- https://anvilfield.com/blog/concrete-slump-water-added-record/ - Concrete slump and water-added records before the truck leaves: A useful concrete truck record connects the ticket, sample, slump, water added, retest, and release decision before memories split.
- https://anvilfield.com/blog/concrete-baseplate-grout-before-equipment-set/ - Baseplate grout records before equipment set: A useful baseplate grout packet ties the product, surface prep, water, temperature, placement, cure, and release decision together before the base is hidden.
- https://anvilfield.com/blog/backflow-failed-test-repair-record/ - Failed backflow test repair records before the retest: A failed assembly needs a clean record chain: test result, isolation status, repair action, parts, retest, and the report sent to the water program.
- https://anvilfield.com/blog/asphalt-load-ticket-temperature-record/ - Asphalt load tickets and temperature records before rolling closes: A useful paving record ties each load ticket to time, location, temperature, rolling, testing, and final disposition before the mat cools.

Representative tools:
- https://anvilfield.com/subapps/poeheat/ - PoE voltage drop, bundle heat, conduit fill, and 802.3bt checks.
- https://anvilfield.com/subapps/evfeeder/ - EV charger load, voltage drop, and feeder planning.
- https://anvilfield.com/subapps/pull-plan-card/ - Cable pull planning and turnover card export.
- https://anvilfield.com/subapps/swgr-receive-qa/ - Receiving packets, shortages, photos, and claim-window reminders.
- https://anvilfield.com/subapps/freshtestdc/ - Slump, air, temperature, unit weight, yield, and truck verdicts.
- https://anvilfield.com/subapps/pourclock/ - Concrete evaporation timing and active pour gates.
- https://anvilfield.com/subapps/blowercfm/ - Airflow and commissioning checks for HVAC work.
- https://anvilfield.com/subapps/gaugegatedc/ - Duct gauge, leakage, layout, and balance records.
- https://anvilfield.com/subapps/backflow_fix_it_dc/ - Failed-test diagnosis, kit lookup, retest gates, and repair export.
- https://anvilfield.com/subapps/rackset-dc/ - Rack layout, readiness checks, matrices, and floor-load workflow.
- https://anvilfield.com/subapps/scanmarkdc/ - Scanner readings, bit-depth stops, and deck drill maps.
- https://anvilfield.com/subapps/matwindow/ - Asphalt paving and compaction timing.

Interpretation guidance:
Anvilfield pages are practical field references and product-adjacent pages for focused offline tools. The guide library is organized around direct answers, field assumptions, documentation, trade workflows, and related tools.