UK structural engineering · online project intake

UK structural engineering, delivered 100% online.

Beam calculations, structural openings, loft conversions and domestic extensions without appointments or site visits. Upload your plans, photographs and dimensions, communicate through the secure portal, pay online and receive the agreed engineering deliverables digitally.

Professional Indemnity insured UK projects Building Control calculation packs
RSJ / beam calculationsLoad-bearing wall openingsLoft structuresDomestic extensionsSteel connection detailing
Fixed-fee structural packages

Choose the closest match to your project.

Straightforward packages can be started online. Larger or more complex work is reviewed before a fixed quotation is confirmed.

Illustration of a structural steel beam
Buy online

Essential Beam

One straightforward beam calculation for a domestic alteration.

  • Member sizing and checks
  • Support reactions
  • Minimum bearing requirements
  • Calculation pack for agreed scope
Fixed fee£295
Illustration of a structural beam and bearing
Buy online

Beam + Bearing

Beam design plus padstone or local bearing requirements.

  • Beam calculation
  • End reactions
  • Padstone / bearing design
  • One reasonable Building Control clarification
Fixed fee£345
Illustration of roof and floor structural members
Buy online

Floor / Roof Member

One clearly defined joist, rafter, purlin, ridge or similar member.

  • Member design / verification
  • Loads for agreed scope
  • Deflection and resistance checks
  • Calculation output
Fixed fee£295
Illustration of two structural beams
Review before acceptance

Two-Beam Package

Up to two conventional beams for the same domestic alteration.

  • Two beam calculations
  • Reactions and bearings
  • Coordinated assumptions
  • One calculation pack
Fixed fee£495
Illustration of a domestic structural alteration
Quote after review

Domestic Alteration

Several related conventional structural elements within one alteration.

  • Coordinated structural scope
  • Multiple members where agreed
  • Load-path review
  • Fixed quotation after drawings review
From£595
Illustration of a domestic extension structure
Quote after review

Small Extension Structures

Conventional domestic extension structural design, subject to scope review.

  • Relevant beams / lintels
  • Selected floor / roof elements
  • Straightforward foundation checks if agreed
  • Building Control calculation pack
From£795
Illustration of a loft conversion structure
Quote after review

Loft Structure

Conventional loft structural design following a preliminary engineering review.

  • Relevant beams and floor members
  • Roof alterations within agreed scope
  • Structural calculations
  • Drawings reviewed before the online service order is confirmed
From£895

Prices shown are for the stated scope and exclude VAT if applicable. Submitting or paying does not bypass engineering review: every project is checked for suitability, scope and information completeness before work starts.

Engineering-only portfolio

Examples of structural work.

Selected technical examples are presented without client names or private project details.

Structural beam analysis and code-check output
Analysis

Beam sizing & verification

Member selection, resistance and deflection checks for structural steelwork.

Three-dimensional model of a bolted steel beam connection
Connections

Steel connection design

Connection geometry, bolts, plates and load transfer between steel members.

Technical loft conversion structural section
Residential

Loft structural detailing

Coordination of steel beams, floor members and roof alterations within a domestic conversion.

Detailed structural steel connection drawing
Detailing

Structural steel details

Fabrication-oriented connection layouts and structural detailing.

How it works

Clear information in. Clear engineering scope out.

  1. 1

    Choose or describe your project

    Select a package or ask for a quotation if you are unsure.

  2. 2

    Upload plans, photos and dimensions

    These are required because the service is remote. If anything is unclear, the engineer requests the missing information through the portal.

  3. 3

    Remote engineering scope review

    The project is checked online for suitability, complexity and information completeness before a quotation is issued.

  4. 4

    Accept, pay & receive online

    Your quotation, scope, messages and final engineering documents stay in the client portal. Accept the terms, pay securely and receive the completed calculation package digitally.

Start your project

Upload the information needed for an engineering review.

For online structural calculations we require all three: plans or dimensioned sketches, clear photographs, and principal dimensions / spans.

PlansPDF, image, DWG or DXF
PhotosClear context + close-ups
DimensionsSpans, openings, storeys and supports

This is a 100% online service. Please do not upload unnecessary personal information. Files are stored privately for project review and delivery.

Upload drawings showing the area to be altered. Max 15 MB per file.
Include context photos and clear views of walls, supports, floors or roof affected.
Questions before you send drawings?

Frequently asked questions.

What information is mandatory?

For an online engineering review, provide plans or dimensioned sketches, relevant photographs and the principal dimensions. If the information is insufficient, the service order cannot proceed until the missing information is supplied.

Does buying a package mean the design is automatically accepted?

No. Every submission is checked for scope, complexity and suitability before a quotation is accepted. Your quotation and scope are issued through the secure client portal. If the project is outside the package, you may be offered an alternative quotation or the enquiry may be declined.

Do you install steelwork or carry out building work?

No. The online packages are for structural engineering design and calculations. Construction, fabrication, installation, temporary works and site supervision are excluded unless expressly agreed in writing.

Can you work from photographs alone?

No. The remote service requires plans or dimensioned sketches, relevant photographs and principal dimensions. If the existing structure cannot be established reliably from the submitted information, we will request further measurements, opening-up information or other evidence through the portal. If the information remains insufficient, the project will not proceed.

Do you attend site or arrange customer appointments?

No. Archiproject Structural Engineers is designed as a 100% online service. There are no site visits, office appointments, telephone appointments or video meetings included. Project information, questions, quotations, payments and engineering deliverables are handled through the secure portal and email.

Can the intelligent assistant calculate my beam?

The assistant can help identify the likely service, collect project information and explain what to upload. It does not replace the engineer's structural assessment or issue certified structural calculations.