Beam Calculations

At Loft Designs, we offer cost-effective beam calculation services to support a wide range of structural projects, ensuring safety, compliance, and efficiency. Whether you need steel beam calculations for removing a load-bearing wall, timber beam calculations for floor joists and roof structures, or structural ridge beam calculations for loft conversions, we provide precise solutions tailored to your project.

Using advanced structural engineering software, we deliver fully compliant calculation packs, including detailed sketches and design details for Part A Building Regulation submission and Building Control approval. Whether you’re a homeowner, architect, or builder, we ensure seamless project execution with accurate and cost-effective calculations.

Reliable & Affordable Steel, Timber & Concrete Beam Calculations

Loft Designs provides precise, cost-effective steel, concrete and timber beam calculations that meet British Standards and Eurocodes—ensuring smooth approval from Building Control. Whether you need a single beam calculation for a load-bearing wall removal or a full structural design for a loft conversion, we deliver professional solutions tailored to your project.

Comprehensive Structural Calculation Packs

All our structural calculations are reviewed by experienced engineers using specialist software. Our calculation packs include:

Steel, timber and concrete beam calculations for domestic projects
Bearing design details for accurate load distribution
Clear, builder-friendly sketches to aid on-site construction
Fully compliant reports for Building Control approval

Beam Calculations for Domestic Projects

We offer a fast turnaround service for simple steel, concrete and timber beam calculations, helping homeowners, architects, and builders get the necessary structural calculations without delay. Our expertise ensures your project complies with building regulations efficiently.

Single Beam Design

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£95

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Two Beam Designs

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£160

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Three Beam Designs

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£240

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Bespoke Steel, Timber & Concrete Beam Calculations For Building Control Approval

Steel Beam Calculations

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We provide accurate and fully compliant steel beam calculations to ensure your build is safe, efficient, and approved by Building Control.

Whether you're:

Supporting a new extension or loft conversion
Reinforcing openings for windows or doors
Installing steel beams for open-plan layouts

Our steel beam calculation services are tailored to your specific project, with precise, easy-to-follow designs for builders and architects.

Timber Beam Calculations

Timber is a popular, cost-effective choice for domestic construction, especially in loft conversions, roof structures, and internal alterations. At Loft Designs, we provide accurate and Building Control-approved timber beam calculations to ensure your project is structurally sound from the start.

Whether you’re:

Constructing timber floors or flat roof structures
Altering internal layouts with timber supports
Building a timber-framed extension

We deliver clear, engineer-backed timber calculations in PDF format, ready for submission to Building Control and easy for builders to follow on site.

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Concrete Beam Calculations

Concrete beams are often used where strength, durability, and fire resistance are essential—especially in new builds, basements, and multi-storey extensions. At Loft Designs, we provide accurate concrete beam calculations to ensure structural stability and full Building Control compliance.

Whether you're:

Constructing reinforced concrete floors or lintels
Supporting masonry or upper-storey loads
Designing bespoke concrete framing for new developments

We deliver clear, engineer-reviewed calculations in digital PDF format, suitable for Building Control submission and contractor use on site.

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We deliver reliable solutions for residential loft conversions, attic conversions, home extensions, and internal alterations

Structural Calculations Suitable for Part A Building Regulation Submissions

Download Loft Design's sample structural calculations report suitable for building control

See Sample Report

40+

Backed by over 40 years of structural engineering experience

50+

Team members enabling engineering across the UK

1000+

Residential, commercial & industrial projects nationwide

quick and easy online structural calculations service

What Our Clients Say

A Fair Price

Always helpful, punctual delivery of designs & at a fair price. A pleasure to be associated with Loft Designs.

Brooks Building Plans

Helpful and Efficient

Loft Designs have been working on my projects for over 8 years, they are extremely helpful and efficient in finding cost effective structural solutions to my architectural projects.

Tony Angeletta Architect

Cannot Fault their Service

I have worked with Loft Designs for a couple of years now and cannot fault their service. They are always happy to help and I look forward to working with them going forward.

Steven C.

This is a very reliable & professional…

This is a very reliable & professional company with excellent service and very prompt in providing assistance !

L.Bin

Loft Designs A+

I have used Loft Designs on many projects and on each time they have delivered both in quality and costs. They always happy to help with any queries. I would highly recommend.

Bobyas

Professional & Knowledgeable

I couldn't be more happy with the service received from Loft Designs. From start to finish, their team was professional, knowledgeable, and attentive to every detail.

Mr. J. Snitzer

Practical, Cost-Effective

Finding a structural engineer who truly understands the needs of our community isn’t easy, but Loft Designs does exactly that. Their experience with local properties and commitment to delivering practical, cost-effective solutions makes them the go-to choice for structural design.

S. Oppenheimer

Smooth & Stress-free

After researching several companies for our loft conversion project, we decided to go with Loft Designs, and we're so glad we did. Their expertise in structural engineering and their solutions made the entire process smooth and stress-free.

M.Reece

Incredibly Easy

Loft Designs made the experience of a loft conversion less stressful. They provided a design which ensured it was structurally sound and compliant with all regulations.

T.Syed

Start Your Loft Conversion with Confidence

Join hundreds of homeowners and builders who trust Loft Designs for accurate, Building Control-ready structural calculations - designed specifically for loft conversions.

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Frequently Asked Questions

A loft conversion typically involves several structural changes to transform the unused attic space into a functional living area. This can include (but is not limited to): Roof Structure Modification, Floor Reinforcement, Staircase Installation, Window and Door Openings, Insulation and Ventilation, Electrical and Plumbing Work and Structural Integrity.

Our team may need to assess load-bearing walls, beams, and foundations, and to design appropriate structural modifications as needed.

Ensuring that your loft conversion complies with building regulations is crucial for safety, structural integrity, and legal compliance.

Building regulations require that any structural alterations or additions, such as roof modifications and floor reinforcement, meet specified standards for strength, stability, and load-bearing capacity. Loft Designs provide structural calculations and designs to ensure compliance.