Structural Calculations for Loft Conversions
Transforming your loft into a habitable space requires precise structural calculations to ensure safety, stability, and compliance with building regulations. At Beam Designs, we specialise in providing comprehensive loft conversion structural packs, including beam calculations for loft extensions.
Whether you’re adding a dormer, modifying your roof, or reinforcing existing structures, our expert calculations ensure your project runs smoothly.
Loft Floor Joist & Trimming Joist Calculations
Most ceiling joists and roof truss chords are not designed to support a full domestic floor load. Our loft conversion structural pack includes a new floor design with detailed beam calculations, ensuring your structure can handle the additional weight. It also covers trimmer joists for stair openings and reinforced joists for dormers, partitions, and baths—meeting all building regulation requirements.
Steel Beam Calculations
In most loft conversions, steel beams are essential for supporting new floors and roof modifications. Our calculations ensure correct beam sizing, placement, and load distribution, whether using existing load-bearing walls or steel supports. If a dormer is part of your design, we provide structural ridge beam calculations for optimal support.
Loft Roof Structure Modification Calculations
Your existing roof structure may need strengthening to accommodate the conversion. We assess whether your property has a traditional cut timber roof or modern factory-made trusses and provide tailored calculations to modify and reinforce the structure while complying with building regulations.
Structural Calculations for Loft Conversions, Extensions & New Builds
Loft Conversion Structural Calculations
Our loft conversion structural calculation packages include everything needed for Building Control approval, material ordering, and builder reference. Simply provide architectural plans or a measured survey, and we’ll handle the rest.
Our calculation pack includes:
-
Steel beam calculations for loft extensions and roof support, including padstone/bearing plates, splice calculations, and fabrication details
-
Floor joist calculations, including trimming joists
-
Rafter and roof modification calculations
Structural Calculations for Home Extensions
A home extension is a great way to add space—whether it’s a larger kitchen, additional bedrooms, or an open-plan living area. Our team provides precise structural calculations for extensions, ensuring compliance with Building Control regulations.
We offer:
-
Steel beam calculations for single and double-storey extensions
-
Load-bearing wall assessments and modifications
-
Foundation and floor structure calculations
%20(39).png)
New Build Structural Calculation Packages
For new build dwellings, we offer comprehensive structural calculation packs to support your Building Control approval. All we need is your architectural plans and Phase 2 site investigation report.
Our full new build calculation packages include:
-
Foundation calculations
-
Masonry or timber-framed wall calculations
-
Floor calculations
-
Roof calculations
We deliver reliable solutions for residential developments, extensions, and internal alterations
Structural Calculations Suitable for Part A Building Regulation Submissions
%20(33).png)
40+
Backed by over 40 years of structural engineering experience
50+
Team members enabling engineering across the UK
1000+
Residential, commercial & industrial projects nationwide
1
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 Beam Designs.
Brooks Building Plans
Helpful and Efficient
Beam 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 Beam 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
Beam Designs A+
I have used Beam 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 Beam 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 Beam 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 desig
S. Oppenheimer
Smooth & Stress-free
After researching several companies for our loft conversion project, we decided to go with Beam 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
Beam 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
Frequently Asked Questions
-
Who are Beam Designs?Beam Designs is a low-cost, online structural calculations service. We are backed by structural engineers, supporting clients' projects across the UK. Our structural calculations are suitable for building control.
-
How do I start using Beam Designs services?To start using Beam Designs services, simply use our contact form to upload your project details. Alternatively, you can email our team at info@beam-designs.co.uk
-
How much does Beam Designs service cost?Beam Designs provides cost-effective structural calculations suitable for Building Regulation Submission. Prices start from £85.
-
How can I contact your team?Beam Designs is a web-based, online service. To contact a member of our team, please use the website contact form. Alternatively, email info@beam-designs.co.uk and we will get back to you as quickly as possible.
-
How is your structural calculations service low cost?We are a web-based, online service. This allows us to keep our costs low and means that we can deliver a cost-effective service for our clients.
Beam Designs is an online service, offering Beam Calculations for construction projects across the UK.