Engineering calculations
Snow & wind loads, work volumes, and labor estimation for construction, welding and production tasks.
Engineering · Calculations · Technical Documentation
Engineering & technical documentation for manufacturing and construction
Tetraktis OÜ provides engineering support end-to-end: calculations, design, and complete documentation packages ready for production, installation, and approvals.
Typical formats:
DWG
STEP
SolidWorks
PDF
Excel
and others on request
Services
Practical engineering deliverables that can be handed directly to a workshop, contractor, or approving body.
Technical documentation
Drawings, specifications, bills of materials and assembly schemes. Instructions: graphic, interactive and video.
Permit documentation packages
Collecting and preparing technical materials to support approvals and permitting procedures.
Design & 3D modeling
Parts, assemblies and structural elements. Output aligned to your requirements and preferred standards.
Routing sheets & specifications
Technology cards, operation lists, structured tables and supporting production documentation.
International exhibition support
Exhibition topic selection, sample logistics, temporary storage and on-ground coordination.
Wholesale trade (additional)
Import/export and brokerage activities as an additional company direction (for compliance purposes).
Core expertise
What clients most often come to us for — when accuracy and clarity matter.
Loads, volumes, labor
When safety, cost transparency, and production planning depend on correct numbers.
Permitting documentation
When you need a neat, structured set of materials that is easy to review and approve.
Production-ready docs
When the output must be directly usable in a workshop, on-site, or by subcontractors.
Process
A clear workflow that keeps the scope and output predictable.
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1
Inputs & requirements
We gather source data and confirm output formats, constraints, and acceptance criteria.
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2
Scope & deliverables
We define what exactly will be included in the final set and how it will be structured.
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3
Execution & checks
Design / calculations / documentation with intermediate reviews and version control.
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4
Delivery
Final files, completeness check, and optional follow-up support for implementation.
Deliverables
Typical outputs (adjusted to your standards and internal processes).
- 2D drawings and documentation sets (PDF/DWG and more)
- 3D models and exchange formats (STEP/SolidWorks and more)
- Specifications, BOMs, work tables (Excel and more)
- Calculation notes for loads and assumptions
- Routing sheets, operation lists, supporting materials
- Instructions: graphic, interactive, and video
Need a specific format?
Tell us your target standard and preferred file types — we adapt the output to match.
Email formats requestCompany
Tetraktis OÜ was established in 2001. We handle engineering and documentation tasks for manufacturing and construction: from calculations and design to documentation sets ready for work.
We operate internationally and align deliverables to the client’s requirements — including file formats, structure, and internal standards.
Founded
2001
Scope
International
Primary focus
Engineering & documentation
Typical formats
DWG, STEP, SolidWorks, PDF, Excel
Portfolio highlights
Selected examples of deliverables. Project names and identifiers can be anonymized where required.
Extra works & labor estimation
Structured scope breakdown for welding / construction tasks with man-hour calculation.
Design coordination
Cross-checking shop-floor conditions against drawings and engineering intent.
Marking & fabrication notes
Clear, workshop-friendly callouts for marking, cutting, and bevel preparation.
Field engineering support
Solving fit-up and reinforcement questions on site with clear documentation.
Volumes & work measurement
Work volume definition and measurable quantities for planning and reporting.
Documentation packages
Neat, review-friendly sets: drawings, tables, assumptions, and traceable results.
Detail-level clarity
Capturing edge cases that prevent rework: tolerances, seams, and interfaces.
Assembly manuals
Graphic instructions designed for fast, correct assembly and fewer support calls.
Need to keep sensitive data private? We can prepare a public-facing portfolio version with anonymized identifiers and cropped screenshots.
Contacts
Send a message or call — we will respond with clarifying questions and a suggested scope.
Company details
Address
Malmi tn 12-32, Narva 20309, Estonia
Reg. no.
10733525
VAT
EE100689075
Coverage
EE · EU · UK · Canada · and more
© 2001–2026 Tetraktis OÜ