Can I Get Structural Calculations Online?

What Does “Building Control Ready” Mean?

This phrase is commonly used online.

It should mean that the structural information has been prepared in a form suitable for use in the Building Control process.

It should not mean:

guaranteed approval.

Building Control independently assesses compliance.

Can Online Structural Calculations Be Used for Building Control?

Yes, where they provide suitable project-specific structural information.

Building Control is concerned with whether the structural design demonstrates compliance.

The fact that the designer worked remotely does not by itself determine whether the calculations are acceptable.

What matters is the adequacy of:

information;

design;

documentation;

competence.

Does Building Control Require the Engineer to Visit the Property?

There is no general rule that every domestic structural calculation must involve a physical engineer visit.

Building Control needs sufficient information to assess compliance.

Whether a site visit is necessary depends on:

project;

existing structure;

information available.

Can a Local Authority Accept Calculations Prepared Online?

Remote preparation does not create a separate category of structural calculation.

The calculation is still technical design information.

A local authority Building Control team can review it in the same way as other submitted structural information.

What About a Registered Building Control Approver?

For ordinary non-higher-risk work in England, Building Control can also be provided by a:

registered building control approver.

The structural-design principle is the same:

the design information needs to be adequate for the project and regulatory process.

Which Building Regulation Covers Structural Calculations?

The main structural requirement is:

Part A — Structure.

Current Approved Document A in England covers structural matters including:

building loads;

foundations;

walls;

floors;

roofs;

chimneys.

Structural calculations can provide evidence for the design of elements falling within these structural requirements.

Does Part A Say Structural Calculations Must Be Prepared On Site?

No.

The important issue is:

compliant structural design.

How the competent designer obtains reliable information depends on the project.

Does Part A Require a Chartered Structural Engineer?

There is no simple universal rule saying:

every domestic structural calculation must be signed by a Chartered Structural Engineer.

Current Building Regulations dutyholder requirements focus on:

competence.

Those undertaking design work need appropriate:

skills;

knowledge;

experience;

behaviours.

They should not undertake work beyond their competence.

Who Can Prepare Structural Calculations?

A suitably competent structural designer.

Depending on the project, this may be:

structural engineer;

civil/structural engineering practice;

another suitably competent structural-design professional.

More complex work may warrant specialist structural-engineering input.

Does the Engineer Have to Be Based Near Me?

Not necessarily.

For suitable remote design, the structural designer can work from reliable project information supplied digitally.

That is one of the major benefits of an online service.

Can I Get Structural Calculations Anywhere in the Country?

For work suitable for remote design:

geographical distance is much less important.

The drawings and structural information can be transferred digitally.

This makes online structural design particularly useful for clients who do not need a routine physical site visit.

Important Regulatory Note

Building Regulations systems differ across the UK.

The regulatory guidance in this article primarily relates to:

England.

Scotland, Wales and Northern Ireland have different regulatory systems and requirements.

Where a project is outside England, the relevant regional requirements need to be considered.

How Long Do Online Structural Calculations Take?

For suitable BuildRegs projects, the typical technical turnaround is around:

7 working days

once the information required to undertake the agreed structural design has been received.

Simple structural openings may involve less work than:

complete extensions;

loft conversions;

structural frames.

Does Online Make the Calculation Faster?

It can make the process more efficient.

Remote delivery can remove delays associated with:

arranging routine site appointments;

travel;

paper documents.

But the structural design itself still needs appropriate time for:

review;

analysis;

checking;

documentation.

Can I Get Structural Calculations in 24 Hours?

Some providers advertise expedited services for straightforward projects.

That does not mean every structural project can or should be completed in 24 hours.

A competent design still depends on:

scope;

available information;

structural complexity;

checking.

Why BuildRegs Uses Around 7 Working Days

It gives customers a useful expectation while allowing the design to be:

reviewed;

calculated;

coordinated.

It avoids creating the impression that structural engineering is an instant automated product.

When Does the Turnaround Start?

Typically when the information required for the agreed design is available.

For example:

Day 1

One photograph uploaded.

Day 2

Upper-floor plan requested.

Day 5

Plan received.

The design could not meaningfully proceed during the missing-information period.

What Can Delay Online Structural Calculations?

Common delays include:

incomplete drawings;

missing dimensions;

unclear floor structure;

unknown wall construction;

previous undocumented alterations;

project changes;

foundation uncertainty;

need for site investigation.

How Can I Make the Process Faster?

Provide as much useful information as you already have.

For a wall removal:

Ideally Upload:

floor plan containing the wall;

floor above;

proposed opening width;

photographs;

wall thickness;

joist direction if known.

Don't Have Everything?

That should not stop you from submitting an enquiry.

Upload what you have.

If something important is missing, it can be identified during the review.

Can Online Structural Calculations Be Used for an Extension?

Yes, many extension structural designs can be carried out remotely where suitable technical drawings are available.

Possible calculations include:

rear opening;

steel beams;

roof members;

columns;

foundations;

lintels.

Are Architectural Drawings Needed for an Extension?

They are highly useful.

The structural designer needs to understand:

existing building;

proposed extension;

opening sizes;

roof;

walls;

foundations.

Good drawings can make remote design significantly easier.

Can BuildRegs Prepare the Building Regulation Drawings as Well?

For suitable projects:

yes.

Building Regulation drawings and structural calculations can be coordinated as part of the wider technical package.

This is particularly useful for:

extensions;

loft conversions;

garage conversions;

larger residential projects.

Why Is a Combined Package Useful?

Because structural decisions can affect the technical drawings.

For example:

Structural Design

requires:

B1 = deep beam

which affects:

Building Regulation Drawing

ceiling level.

Or:

Structural Design

requires:

C1 steel column

which affects:

Floor Plan

wall/kitchen arrangement.

Coordinating both reduces conflicts.

Can Online Structural Calculations Be Used for a Loft Conversion?

Yes, many loft conversions can be structurally designed from:

measured plans;

sections;

roof information;

photographs.

The calculations may include:

floor joists;

steel beams;

trimmers;

roof alterations;

dormer structure.

When Might a Loft Need a Visit?

Where the existing roof structure cannot be adequately established from:

drawings;

photographs;

measurements.

This can be particularly relevant where there have been previous alterations.

Can Garage Conversion Calculations Be Done Online?

Yes, where structural calculations are actually required.

Not every garage conversion needs extensive structural engineering.

Calculations may become relevant where the project includes:

wall removal;

widened opening;

beam;

roof alteration;

structural support to garage-door infill.

Can New Build Calculations Be Done Online?

Much of the structural design process for a new building can be carried out digitally.

However, new builds can require:

site investigation;

ground information;

surveys;

coordination between multiple designers.

“Online” does not mean:

no site information is required.

It means the structural design can be managed and delivered digitally where appropriate.

Can Foundation Calculations Be Done Online?

Sometimes.

But foundation design is particularly dependent on site-specific information.

This can include:

soil;

trees;

drains;

nearby foundations;

site history;

ground investigation.

Remote calculation does not eliminate the need for reliable ground information.

Can Columns and Steel Frames Be Designed Online?

Potentially, yes.

But these projects can be more complex than a standalone beam.

They may require:

beam design;

column design;

connection design;

foundation design;

stability analysis.

The scope should be established before quoting.

Can Connection Calculations Be Done Online?

Yes, where reliable geometry and structural information are available.

Connection design can include:

plates;

bolts;

welds;

base plates;

beam-to-column connections.

This is not automatically included in every beam calculation.

What Does BuildRegs Provide Digitally?

Depending on the agreed scope, the structural package can be issued electronically in a format suitable for:

Building Control;

builder;

project designer;

client.

The exact deliverables are confirmed as part of the quotation.

Is the Structural Calculation a PDF?

Structural calculations are commonly delivered digitally as:

PDF documents.

These can be easily:

emailed;

stored;

sent to Building Control;

shared with the builder.

Can My Builder Use the PDF?

Yes.

The builder can use the structural information alongside the relevant project drawings.

For construction, the builder should ensure they are using:

current issue;

correct structural references;

correct project drawings.

Can the Steel Fabricator Use It?

The structural calculation can provide the selected structural member.

But fabrication may also need:

site dimensions;

connection details;

plates;

holes;

shop drawings.

These need to be coordinated separately where applicable.

Are Fabrication Drawings Included?

Not automatically.

Fabrication drawings are commonly prepared by:

steel fabricator;

specialist steel contractor.

They are different from the structural design calculations.

Are Temporary Works Included?

Not automatically.

This is particularly important for load-bearing-wall removal.

The permanent design may specify:

B1 steel beam.

Before B1 is installed, the structure may require:

props;

needles;

bracing;

temporary beams.

Temporary works should be planned separately unless specifically included.

Does the Calculation Tell the Builder How to Remove the Wall?

Not automatically.

Structural calculations relate primarily to the permanent structural design.

They are not necessarily:

demolition method statement;

temporary works design;

lifting plan.

Do Online Structural Calculations Include Building Control Fees?

No.

Building Control is a separate service.

Local-authority Building Control fees depend on their charging arrangements.

Registered building control approvers negotiate their own fees.

Does BuildRegs Submit to Building Control?

This depends on the agreed service.

The structural information is prepared for use in the Building Control process.

The Building Control application itself should only be treated as included where it forms part of the confirmed appointment.

Do Online Calculations Guarantee Building Control Approval?

No.

Avoid any provider claiming that a legitimate independent regulatory decision can simply be guaranteed.

Building Control may:

review;

query;

request clarification;

request additional information.

A good structural design should provide suitable evidence.

But the Building Control body makes its own decision.

What If Building Control Raises a Query?

Send the query to the relevant designer.

It might relate to:

loading;

beam support;

foundations;

bearing;

drawing coordination.

Queries are a normal part of technical review.

Does a Query Mean the Calculation Is Wrong?

Not necessarily.

Building Control might simply need:

clarification;

additional information;

confirmation of an assumption.

Can Online Structural Calculations Be Revised?

Yes, where revisions fall within the agreed service or are separately instructed.

Typical reasons include:

opening width changes;

structural layout changes;

Building Control comments;

site information changes.

What If I Change the Opening After the Calculation?

Tell the structural designer.

Changes in span can affect:

bending;

deflection;

reactions;

beam size.

Do not assume that a minor-looking architectural change is structurally irrelevant.

What If the Builder Wants a Different Beam?

The proposed substitution should be reviewed before installation.

Different steel sections have different:

strength;

stiffness;

dimensions;

weight;

stability properties.

Can I Use an Online Beam Calculator Instead?

An automated tool can be useful for preliminary understanding.

But for a Building Regulations project, the important issue is whether the design:

reflects the actual structure;

uses appropriate loads;

considers supports;

has been undertaken competently.

Do not confuse:

calculation software

with:

professional structural design.

Are Online Calculations Safe?

The delivery method does not determine whether the design is safe.

A remote design can be appropriate where the designer has sufficient reliable information.

Equally, an in-person visit does not compensate for poor structural design.

The important issues are:

competence;

information quality;

correct analysis;

appropriate scope.

How Do I Choose an Online Structural Calculation Provider?

Look beyond the headline price.

Check the following.

1. Professional Indemnity Insurance

A professional design provider should have appropriate insurance for its activities.

BuildRegs holds:

£1 million Professional Indemnity Insurance.

2. Clear Scope

You should know what the quotation includes.

For example:

one beam;

supports;

columns;

foundations;

drawings.

3. Fixed Pricing After Review

A clear scope review helps avoid unexpected charges.

4. Appropriate Competence

Structural design should be undertaken by someone competent for the work.

5. Building Control Suitable Documentation

The calculation should be clearly presented for technical review.

6. Clear Project References

You should be able to identify:

project;

beam;

revision;

calculation.

7. No False Approval Guarantees

Be wary of absolute claims such as:

“Guaranteed Building Control approval.”

The regulator makes the regulatory decision.

8. Clear Turnaround

Look for a realistic delivery period rather than vague promises.

BuildRegs typically works to:

around 7 working days

for suitable technical projects once the required information is available.

9. Clear Revision Process

Understand what happens if:

the design changes;

Building Control asks a question;

site conditions differ.

10. Coordination With Drawings

For larger projects, calculations should coordinate with the technical drawings.

Online Structural Calculations vs Local Structural Engineer

Both approaches can be appropriate.

Online Structural Service

Can be ideal for:

clear drawings;

straightforward residential work;

digital delivery;

clients wanting efficient turnaround;

projects where routine site attendance is unnecessary.

Local Site-Based Engineer

Can be particularly valuable where:

structural defects need inspecting;

construction is unusual;

physical investigation is required;

existing conditions are uncertain.

The right choice depends on:

the project.

Online Structural Calculations vs Structural Survey

These are different services.

Structural Calculation

Designs or checks a structural element.

Structural Survey / Inspection

Investigates the condition or behaviour of an existing building.

If your problem is:

“I want to remove this wall”

you may need structural design.

If your problem is:

“Why is my house cracking?”

you may need a site-based structural inspection.

Can I Use Online Calculations for Cracks or Subsidence?

Not as a substitute for appropriate investigation.

Issues such as:

movement;

subsidence;

foundation failure;

serious cracking

often require site assessment and possibly further investigation.

They should not be treated as a simple online beam-design problem.

Can I Use Online Calculations for Retrospective Work?

Potentially.

If a beam has already been installed, the designer may need to establish:

actual section;

actual span;

supports;

bearings;

structure above.

This can require:

photographs;

measurements;

opening-up;

site inspection.

A retrospective calculation is different from designing the beam before installation.

What If I Have No Building Control Approval?

For qualifying unauthorised work in England, a:

regularisation application

may be available through local-authority Building Control.

Current GOV.UK guidance says regularisation is available only through a local-authority Building Control body and only for qualifying work carried out after:

11 November 1985.

You may need:

structural information;

opening-up;

remedial work.

Does a Retrospective Calculation Automatically Regularise the Work?

No.

Structural calculations are technical evidence.

Regularisation is a separate statutory Building Control process.

Can Online Structural Calculations Help If Building Control Has Written to Me?

Potentially, yes.

Upload:

the Building Control comments;

current drawings;

photographs;

existing calculation if any.

The technical request can then be reviewed.

Example Building Control Comment

You receive:

“Please provide structural calculations for the proposed steel beam supporting the rear wall.”

You can upload:

their comment;

proposed plans;

structural opening dimensions.

The missing calculation can then be scoped directly.

Can I Send the Engineer Building Control's Email?

Yes.

That can be extremely useful.

It helps avoid misunderstanding what information the regulator is requesting.

Can I Use Online Structural Calculations Before Planning Permission?

Potentially.

Planning and Building Regulations are separate.

However, if the architectural design is likely to change during planning, it may be better to avoid finalising structural calculations too early.

When Is the Best Time to Order Calculations?

Ideally once the geometry that affects the structure is reasonably fixed.

For a wall removal:

before steel ordering.

For an extension:

while Building Regulation drawings are being developed.

For a loft:

while the technical loft design is being coordinated.

Should I Get Calculations Before Builder Quotes?

Often, yes.

It can improve quotation accuracy.

Without a design, a builder might price:

“allow for RSJ.”

With structural information, the quotation can refer to:

actual beam;

columns;

support arrangement.

Why This Can Save Money

If three builders price:

the same structural design

their quotations are easier to compare.

If each builder assumes a different structural solution, comparing price becomes much harder.

Should I Order Steel Before the Online Calculations Are Finished?

No.

The structural calculation determines the required member.

Use this sequence:

Opening confirmed

↓

Structural calculation

↓

Beam/support design

↓

Building Control coordination

↓

Fabrication dimensions checked

↓

Steel ordered

How BuildRegs Online Structural Calculations Work

Step 1 — Upload Your Project

Send whatever you already have:

PDF;

DWG;

planning drawings;

photographs;

dimensions;

Building Control comments.

Step 2 — We Review the Scope

The project is reviewed to establish what structural design appears to be required.

For example:

One Beam

or:

Beam + Columns + Foundations.

Step 3 — Receive a Fixed Quote

The fee is confirmed for the agreed structural scope.

You can then decide whether to proceed.

Step 4 — Structural Design

The agreed calculations are prepared using the project information supplied.

If additional information is required, it can be requested.

Step 5 — Digital Delivery

The completed technical package is delivered electronically for use in the Building Control process.

How Long Does BuildRegs Take?

For suitable projects:

typically around 7 working days

from receipt of the information required for the agreed technical design.

More complex projects or projects needing additional investigation can take longer.

How Much Does BuildRegs Charge?

For a suitable straightforward structural opening:

RSJ / Structural Opening Calculations — From £249

The actual fixed price is confirmed after review.

Do I Need to Pay Before You Review My Plans?

The project scope should be reviewed before the final technical quotation is confirmed.

This helps establish whether the enquiry really involves:

one beam;

several beams;

columns;

frames;

foundations.

Can I Order Building Regulation Drawings as Well?

Yes, for suitable projects.

BuildRegs provides Building Regulation drawing services for projects including:

single-storey extensions;

double-storey extensions;

loft conversions;

garage conversions;

outbuildings;

new houses.

Structural calculations can be coordinated where required.

Why Use One Provider for Drawings and Calculations?

It can improve coordination.

Instead of:

Drawing Provider

showing B1 in one place

while:

Structural Designer

calculates a different opening,

the technical package can be developed together.

Do I Have to Live Near BuildRegs?

No for suitable remote-design projects.

The service is designed around digital project information rather than requiring routine in-person meetings.

Where the project requires physical investigation, that limitation should be identified rather than ignored.

Can Homeowners Use BuildRegs?

Yes.

The online process is designed to work from existing project information.

You do not need to understand:

beam design;

bending;

reactions;

Eurocodes

before sending the project.

Can Architects Use BuildRegs?

Yes.

Architectural designers can provide:

PDF plans;

DWGs;

technical drawings

and use BuildRegs for the structural calculation scope where appropriate.

Can Builders Use BuildRegs?

Yes.

Builders can submit:

project plans;

structural opening details;

Building Control comments.

But the structural design should be completed before the relevant structural work proceeds.

Can Developers Use BuildRegs?

Yes.

Projects can be reviewed digitally where the scope is suitable.

Larger or more complex projects are assessed according to their actual technical requirements.

Do I Need to Talk on the Phone?

The BuildRegs process is designed to work primarily through:

online upload;

email;

digital documentation.

This helps keep the project information recorded and organised.

Where technical clarification is needed, further information can be requested.

What If I Don't Understand What Building Control Wants?

Upload the Building Control comment.

You do not need to translate technical terminology yourself.

For example:

“Provide design calculations for beams B1/B2 and reactions to supporting masonry.”

Send the comment with the current drawings.

The required structural scope can then be reviewed.

Frequently Asked Questions