SamsonasCalc

Philadelphia · structural & civil engineering firms

Your spreadsheet calcs, turned into checked tools.

I build custom calculation and reporting tools for small engineering firms. If your office relies on a spreadsheet only one person understands, or your engineers spend hours turning field notes into inspection reports, I turn that into a tested web tool your whole team can use, with every calculation shown the way a reviewer expects to see it.

Try the beam checker Send me a spreadsheet
MemberW12×19 · Fy 50 ksi
Governing D/C0.63 · OK
F2-1Mp = FyZx = 50 × 24.7102.9 k-ft
F2-5Lp = 1.76 ry√(E/Fy)2.90 ft
F1φbMn, φb = 0.9092.6 k-ft
D/C = 53.2 / 92.60.575 OK
G2-1φvVn = 0.6FyAwCv186.0 kips
Excerpt of a calc sheet generated by the beam checker, AISC 360-22

What I build

Tools shaped around how your office already works, not a generic product you have to adapt to.

Design check tools

Member checks, connection checks and load takeoffs moved out of fragile spreadsheets into tools with fixed equations, input validation and a printable calc sheet.

Beams and headers for wall removals · steel and wood members · temporary works

Report automation

Field notes, photos and measurements go in; a formatted report in your house style comes out. Your engineers spend their time on judgment, not formatting.

Facade inspections · fire escape certifications · special inspection and lab reports

Site and civil calcs

Repetitive civil calculations standardized so every project runs the same checked method, with a clean output for the reviewing agency.

Stormwater and BMP sizing · reserve studies · survey data processing

Live example: steel beam checker

A working tool for simply supported W-shape beams to AISC 360-22.

  • Flexure with lateral-torsional buckling and flange local buckling, shear, and live and total deflection
  • Finds the lightest W-shape that passes, with an optional depth limit
  • Prints a full calc sheet with every equation and its numbers
  • All 283 W-shapes from the AISC Shapes Database
Open the beam checker
Checked against the published AISC Design Examples (W18×50, 35 ft span) and Manual Table 3-2.
CaseAISCTool
F.1-1A · φMn, braced379378.8
F.1-1B · Mn/Ω, ASD252252.0
F.1-2B · φMn, third points305306.5
F.1-3A · φMn, midspan brace288287.6
W21×48 · noncompact flange398397.9

How a project works

Fixed price, agreed before any work starts.

  1. Send the current versionThe spreadsheet or report template your team uses now, with project numbers removed.
  2. Fixed-price scopeI write back what the tool will do, what it won't, and the price.
  3. Build and verifyHalf up front. Every result is checked against your existing hand calcs or past reports.
  4. HandoverBalance on delivery. Your team gets the tool, the source files and a short guide.

Contact

matt@samsonascalc.com

Matt Samsonas · Philadelphia, PA