Custom work
Every calculator on this site is free and generic: standard formulas, default assumptions. Real jobs often need something else — a regional code that differs from the defaults, an in-house calculation rule, or a calculation nobody has built a tool for. That is what this page is about.
Quoted first, work starts only after you say yes. You get a quote within 24 hours listing deliverables, turnaround and acceptance criteria. 50% up front, balance after acceptance, two rounds of revisions included.
Email 185674086@qq.com
Four things make a quote accurate: what to calculate · which standard · drawings or samples · deadline. You get a quote within 24 hours, listing deliverables, turnaround and acceptance criteria.
What can be done
1. Calculation report — from USD 60
Scaffolding, falsework, earthwork balance, rebar takeoff checks, temporary water and power demand, hoist foundations. Delivered as a report (Word/PDF) with the calculation steps, the source of each formula, the assumptions and a conclusion. 1–3 working days.
2. Code alignment — from USD 40
A table comparing the site's default values against the code you actually work to: default value, your local value, the difference, and what it changes. 1–2 working days.
3. Bespoke calculator — from USD 150
A single-file web tool that opens by double-clicking and works offline. Your formulas, your default values, your company name and colours. No server, no data leaves the machine. 3–7 working days.
4. ISO documentation — from USD 80
Procedures, record forms, internal audit checklists and management review templates for ISO 9001 / 14001 / 45001, written for your scope of work. 3–5 working days.
How it works
- Use the chat widget in the corner. Say what has to be calculated, to which standard, in which units, and whether you have a sample.
- You get a quote and a delivery list within 24 hours: what is delivered, when, and how it is accepted.
- 50% up front, the rest on acceptance. Two rounds of revisions included.
- You check the numbers against your own hand calculation. If they disagree, it is my error and it gets redone free.
What is out of scope
No stamped design documents — anything requiring a registered engineer's seal cannot be produced here, and no pretence will be made otherwise. Results touching structural safety, deep excavation support or high formwork must be reviewed by a suitably qualified professional. No same-day rush jobs.