See Carmkn in action

Ask questions about your building projects in plain English. Get answers grounded in your actual BIM data, with calculations designed to support PE review workflows.

What engineers ask Carmkn

These are real workflows — not hypothetical features. Each example shows a natural language query and what Carmkn does to answer it.

ElectricalNEC load calculation from BIM

“What is the total connected load on Panel LP-2A with NEC demand factors applied?”

Carmkn queries the BIM model for all circuits on Panel LP-2A, applies NEC Article 220 progressive demand factors, handles non-coincident heating/cooling loads, and returns a defensible demand load calculation with NEC article references.

Voltage DropLongest home run analysis

“Check voltage drop for the longest home run on Floor 3.”

Carmkn pulls real wire lengths and conductor sizes from the Revit model, calculates voltage drop using the full AC impedance formula from NEC Chapter 9 Table 9, and checks against NEC 210.19(A) thresholds. Results should be verified by a licensed engineer.

Document IntelCross-specification comparison

“Compare the lighting requirements between the owner’s standards and the project-specific spec.”

Carmkn performs a semantic comparison across both documents, identifies conflicts, extracts specific property values (LPD limits, control requirements, fixture types), and generates a structured discrepancy report with page references.

ComplianceTitle 24 lighting compliance

“Is the lighting design for the open office area on Floor 2 Title 24 compliant?”

Carmkn pulls fixture data from the Revit model, calculates actual lighting power density from fixture counts and wattages, and compares against Title 24 area category limits to assist with energy code compliance review.

Knowledge GraphNatural language project query

“What panel serves the HVAC equipment in the mechanical room on Level B1?”

Carmkn traverses the knowledge graph through spatial relationships: starts at the mechanical room on Level B1, follows connections to HVAC equipment, then to the serving panel. Returns the panel name, feeder size, and available capacity.

BIM ScaleBuilding-wide circuit audit

“List all circuits across the building that exceed 80% of their breaker rating.”

Carmkn processes 100K+ circuits from the BIM model, compares connected load against breaker rating for each circuit, and returns a sorted table with panel name, circuit number, load, rating, and percent utilization.

Ingests your project files

Connect your project documents and BIM models. Carmkn processes them and makes every entity, relationship, and specification queryable in the knowledge graph.

PDFDOCXXLSXPPTXCSVRevit (.rvt)IFC (2X3/4/4X3)DWGImages (OCR + Vision)45+ code languagesEmail (.eml/.msg)HTMLMarkdownJSONEPUB

Getting connected

Connect your Egnyte or Microsoft OneDrive/SharePoint in five steps. Read-only by design — we never write, mirror, or copy your source content.

Admin approval~10 min

Your domain admin approves Carmkn as an app on your Egnyte or Microsoft tenant. Read-only access to the files you choose.

Pilot connection~5 min

A pilot user connects their account and selects which folders to index. Carmkn reads folder structure but does not copy or mirror content.

First file processed~15 min

A test document is processed: parsed, entities extracted, and indexed into the knowledge graph. Searchable immediately.

Broader rolloutRolling

Additional users connect at their own pace. Each user’s access is scoped to their own file system permissions.

OffboardingSame day

Tokens deleted, processed data purged. Read-only design means we never wrote to your source.

Data handling

Where your data goes and what we explicitly do not do.

Data in transitEncrypted (TLS) between your systems and Carmkn

Storage at restEncrypted at rest with cloud-managed keys

AI model providerAnthropic (Claude) with zero-day retention — your data is not stored or trained on

Data residencyUS-based — all processing and storage in a single region

What we never doCopy, mirror, or back up your files. We never write to your source systems.

Request a live demo

We'll walk through Carmkn with your project data — or ours. See BIM queries, NEC calculations, and document intelligence on a real building project.