Extension (Ecclesall, Sheffield)
The structural calculations behind this project, prepared by our engineers for building control.
Project Overview
Location
Ecclesall, Sheffield
Project Type
Extension
Structural Services
Detailed Calculations
Compliance
Building Regulations
Dining Area Extension – Ecclesall, Sheffield
This bungalow in Ecclesall, Sheffield has been transformed with a contemporary dining area extension, creating a bright, open-plan living space while maintaining a sleek, minimalist aesthetic. The homeowners wanted a modern, structurally efficient extension, seamlessly connecting their home with the outdoors while ensuring a clean, architectural finish.
To achieve this, PorthouseDean provided expert structural calculations, ensuring the steel beam system and hidden corner post could support wide-span openings without disrupting the design. The result? A spacious, light-filled dining area with a seamless flow into the rest of the home.
Maximising Space & Modern Design with Structural Expertise
This project featured:
✅ A large dining area extension – Expanding the home for more functionality
✅ Hidden steel corner post – Maintaining a clean, modern architectural look
✅ Steel beam (RSJ) calculations – Supporting wide openings without visible obstructions
✅ Increased natural light – Maximising daylight through large glazing
What we did
Our contributions included:
✔ Structural calculations for the extension – Ensuring stability and compliance
✔ RSJ & steel beam design – Supporting large-span openings
✔ Load-bearing wall modifications – Creating a safe, seamless transition between old and new
✔ Hidden steel corner post integration – Achieving a sleek, open-plan aesthetic
With expert structural engineering and precision planning, this extension has given the home a modern, practical, and visually striking upgrade, perfect for entertaining and everyday living.
Planning a Home Extension? Let’s Make It Happen!
At PorthouseDean, we provide expert structural calculations for home extensions, RSJs, and open-plan transformations.
📍 Providing structural engineering across Ecclesall, Sheffield, and South Yorkshire.
Why Extend Your Home?
More Space, More Possibilities
Create an open-plan kitchen, a family hub, or a bright entertaining space.
A Date You Can Plan Around
You choose the delivery date, and the price follows the date.
More Natural Light
A wider opening to the garden needs a beam sized for the load above it. The calculations set that size.
Personalised Design
Every house is built differently. The calculations work from your drawings and the structure you already have.
How PorthouseDean Supports Your Project
Every project is different, but the need for precise, reliable structural calculations remains the same. Our engineers work with:
Homeowners
Ensuring designs are safe, cost-effective, and practical.
Architects
Providing calculations that allow for creative yet compliant designs.
Builders
Making sure construction runs smoothly with clear, reliable specifications.
Planning Your Own Project?
More than 9,000 projects since 2012 have run through the same process. You get a fixed price before you commit, and you choose the delivery date.
📩 Get a QuoteStructural Engineering Services We Offer
Structural Calculations for Loft Conversions
Calculations for the floor, beams and roof changes a loft conversion needs.
Structural Calculations for Wall Knock-Throughs
Beam and support calculations for taking out a wall.
Structural Calculations for Extensions & New Builds
Calculations for foundations, walls, beams and roofs on extensions and new builds.
Structural Calculations for Bi-Fold Doors & RSJs
Beam and padstone sizes for wide openings and bi-fold doors.
Structural Drawings & Building Control Calculations
Complete documentation to help you achieve smooth Building Control approvals.