Every calculator, report format, and AI answer in Sitemark was built by people who have held a total station rod, pulled pipe laser strings, and argued with inspectors over as-built packages. This page explains what that means for the software you are using.
Most construction software is designed by people who have never been on a jobsite at 6 AM in the mud with a failing phone battery and a foreman asking for grade numbers. Sitemark is not. The platform was designed from the ground up for field crews — the people actually holding the rod, running the pipe laser, or logging compaction tests — not for office managers reviewing dashboards three states away.
The team behind Sitemark has direct field experience across a wide range of construction sectors: underground utility installation (gravity sewer, force main, water main, storm drain), airport construction (runway, taxiway, apron, and airfield lighting), solar EPC (pile driving, racking installation, as-built documentation), residential land grading (rough grade, pad certification, positive drainage), road and highway construction (subgrade, base, surface course), and military base projects (USACE, NAVFAC, and AFCEC construction oversight).
That breadth is intentional. Different sectors have different documentation cultures, different inspector expectations, and different code references. A report format that works for a DOT inspector is not the same as one that satisfies an FAA AIP program manager or a USACE contracting officer. Building for all of them required people who had worked with all of them.
Sitemark's sister company, Express Tools, sells the precision equipment that contractors use every day — Topcon, Trimble, Leica, and Spectra Precision GPS rovers, machine control systems, pipe lasers, and rotating laser levels.
That relationship gives the Sitemark team direct, ongoing insight into how contractors actually use precision equipment in the field — what workflows break down, what documentation steps get skipped under pressure, and what output formats actually match what comes out of the equipment. When you call Express Tools about a Topcon HiPer HR or a Trimble R12i, you are talking to the same team that built the GPS-based grade logging features in Sitemark. That feedback loop is built into the product.
The Sitemark AI assistant is trained on real contractor questions, real equipment manuals, and real field scenarios. That training covers the four major precision equipment brands used by field contractors in the US and internationally:
This means when a contractor asks the Sitemark AI "What is the difference between the Topcon FC-6000 and the Trimble TSC7 for pipe grade work?" or "How do I set up a backsight on a Leica TS16 in survey mode?" — the answer comes from actual equipment context, not a generic language model guess.
Sitemark's 40+ free calculators are not generic math tools with construction names pasted on. Each one was built from the actual code or standard that governs the calculation, with the exact formula contractors and engineers use in the field:
Minimum slope for gravity sewer and drainage — 1/8 inch per foot for 6-inch pipe, with self-cleaning velocity thresholds. Our pipe grade calculator references the exact IPC table, not approximations.
FAA standards for runway, taxiway, and apron grade limits — longitudinal and transverse grades with AIP inspection documentation requirements. Our airport grade verification workflow matches these exactly.
Maximum grades by design speed and superelevation rates by curve radius — the actual AASHTO geometric design tables used by highway engineers and DOT inspectors.
Concrete mix design acceptance criteria, slump and air content tolerances, and compressive strength test requirements — per ACI 318 and IBC Chapter 19.
Foundation elevation requirements and drainage grades for structures — positive drainage slopes referenced to IBC Section 1803.
When an inspector questions a calculation, a Sitemark contractor can point to the specific code section the number came from. That is not possible with a generic calculator.
The Sitemark AI assistant is powered by Claude (Anthropic) and trained on a curated knowledge base that includes:
The result is an AI that can answer "What is the minimum slope for a 4-inch PVC sewer in a jurisdiction that adopted IPC 2021?" or "What does the FAA require for trench backfill compaction on an AIP project?" with actual code citations — not vague general answers. When the answer requires a judgment call or field-specific context we cannot verify, the assistant says so.
A field documentation app is only as valuable as its output. If the report format is not accepted by the inspector, the field crew has to reformat everything manually — which is exactly the problem Sitemark was built to eliminate.
Sitemark's report formats were designed in direct consultation with the types of reviewers who actually receive them:
As-built packages for sewer, storm drain, and water main projects submitted to municipal public works — including invert elevations, pipe slopes, depth of cover, and manhole data.
Pavement QC records for state highway projects — nuclear gauge compaction logs, subgrade grade sheets, and superelevation verification reports in the format state transportation agencies require.
Pad certification packages for residential and commercial land development — finished pad elevations, positive drainage verification, and geotechnical compaction summaries.
Three-phase inspection records, RFI documentation, and daily field reports formatted for Army Corps of Engineers PROSPECT and contract administration requirements.
Airport pavement QC records and grade verification logs designed to match what FAA program managers and sponsor resident project representatives review during AIP oversight visits.
Pile as-built packages with block conformance summaries — the specific format that EPC engineers use to issue racking authorization. Designed to turn 24-48 hour approvals, not 3-7 day resubmittals.
Inspector requirements change over time. When a Sitemark contractor reports that a specific agency is now requiring a new field or format, we update the template — not just add it to a backlog. If your inspector is not accepting a Sitemark report format, email us at support@sitemark.ai with the specific requirement and we will address it.
Sitemark was built by a team with direct field experience across underground utility installation, airport construction, solar EPC, residential grading, road construction, and military base projects — combined with software engineers who specialize in field-facing mobile tools. Sitemark is the sister company of Express Tools, which sells the precision equipment contractors use every day, giving the team continuous insight into real field workflows.
Yes. Sitemark's airport calculators and report formats reference FAA AC 150/5370-10 directly. The grade verification workflows are built to FAA crossfall and longitudinal grade tolerances, and report formats are designed to match what FAA AIP inspectors and airport sponsor resident project representatives (RPRs) request during QC audits. If a specific FAA requirement is not covered, contact us and we will address it.
Email support@sitemark.ai and describe the specific requirement the inspector raised. Include the agency (city, DOT, FAA, USACE, etc.) and the exact format or field they need. Our report formats were designed with inspectors in mind, and we update them when real-world requirements evolve. Contractor feedback is how we stay current.
Yes. Sitemark is designed to work alongside — not replace — your GPS equipment. The app runs on your phone or tablet, receives elevation and position data from your rover or total station via Bluetooth or manual input, and handles the documentation, calculation, and reporting workflow. The AI assistant is trained on Topcon, Trimble, Leica, and Spectra Precision equipment manuals and workflows.
Every Sitemark calculator references the specific code or standard the formula comes from — IPC for pipe slopes, FAA AC 150/5370-10 for airport grades, AASHTO for road geometry, ACI 318 for concrete, and MSHA for mine site grades. The formulas are not proprietary — they are the same ones in the codes. We document the source so contractors and inspectors can verify them.
Try the calculators, ask the AI a real field question, or log a grade shot. The expertise is built into everything.