Check finished internal space after the full build-up
Steel frame category · 11 products
Steel frames for annexes.
Compare published steel frames listed for annexe projects, with dimensions, weight, openings and reference prices for current quotation.
Quick answer
An annexe frame is the structural starting point, not approved living accommodation. Planning, Building Regulations, insulation, ventilation, fire safety, drainage, services, access and the full envelope must be resolved for the actual site and intended occupation.
Before choosing a frame
Compare the published facts, then check the project.
Every product below has its own factual specification, product-specific answers and links to the nearest published sizes in this category.
Confirm planning and Building Regulations requirements
Coordinate services, fire safety, ventilation and drainage
Annexes
11 published configurations.
Reference prices are not final Forti Nova offers. Open a frame to see its dimensions, footprint, listed weight, openings, decision checks and quotation requirements.
Annexes
Annexe 001 – Flat Roof 100 Steel Frame
Online frame price£4,990.46
- Frame
- 7200 × 3600 mm
- Footprint
- 25.9 m²
- Height
- 2503 mm
- Listed weight
- 1176 kg
Annexes
Annexe 001 – Flat Roof 165 Steel Frame
Online frame price£5,042.37
- Frame
- 7200 × 3600 mm
- Footprint
- 25.9 m²
- Height
- 2568 mm
- Listed weight
- 1236 kg
Annexes
Annexe 001 – Pitched Roof Steel Frame
Online frame price£6,059.19
- Frame
- 7200 × 3600 mm
- Footprint
- 25.9 m²
- Height
- 3417 mm
- Listed weight
- 1328 kg
Annexes
Annexe 002 – Flat Roof 100 Steel Frame
Online frame price£5,133.58
- Frame
- 6000 × 4800 mm
- Footprint
- 28.8 m²
- Height
- 2358 mm
- Listed weight
- 1215 kg
Annexes
Annexe 002 – Flat Roof 165 Steel Frame
Online frame price£5,270.86
- Frame
- 6000 × 4800 mm
- Footprint
- 28.8 m²
- Height
- 2568 mm
- Listed weight
- 1312 kg
Annexes
Annexe 002 – Pitched Roof Steel Frame
Online frame price£6,063.80
- Frame
- 6000 × 4800 mm
- Footprint
- 28.8 m²
- Height
- 3385 mm
- Listed weight
- 1330 kg
Annexes
Annexe 003 – Flat Roof 165 – 323 Steel Frame
Online frame price£5,680.72
- Frame
- 9000 × 3600 mm
- Footprint
- 32.4 m²
- Height
- 2568 mm
- Listed weight
- 1412 kg
Annexes
Annexe 003 – Pitched Roof Steel Frame
Online frame price£6,742.66
- Frame
- 9000 × 3600 mm
- Footprint
- 32.4 m²
- Height
- 3417 mm
- Listed weight
- 1515 kg
Annexes
Annexe 004 – Flat Roof 165 Steel Frame
Online frame price£6,731.27
- Frame
- 8400 × 5400 mm
- Footprint
- 45.4 m²
- Height
- 2568 mm
- Listed weight
- 1663 kg
Annexes
Annexe 004 – Pitched Roof – EDW Steel Frame
Online frame price£7,643.13
- Frame
- 8400 × 5400 mm
- Footprint
- 45.4 m²
- Height
- 3385 mm
- Listed weight
- 1750 kg
Annexes
Annexe 004 – Pitched Roof – Gable Steel Frame
Online frame price£7,606.22
- Frame
- 8400 × 5400 mm
- Footprint
- 45.4 m²
- Height
- 3385 mm
- Listed weight
- 1734 kg
Category questions
Answers about annexes.
What is included in the steel frames for annexes listings?
Each page describes the published structural frame or component shown. A finished building, foundations, erection, envelope, glazing, services and internal finishes are separate unless the written quotation states otherwise.
How should I compare the 11 annexes products?
Compare overall dimensions, approximate footprint, listed weight, product type, openings and the project checks shown on each page. Finished usable space and suitability must be confirmed from project drawings.
Are the prices for annexes final?
No. They are online frame prices captured on the catalogue check date. Forti Nova confirms availability, VAT basis, current selling price, delivery, drawings, inclusions and exclusions in writing.
Can Forti Nova include ground screws and erection?
Forti Nova can assess suitable projects for ground screws, frame supply and professional erection. The selected frame, postcode, ground, design loads, access and programme must be reviewed first.
Bundle advantage
Ground screws · frame · erection
Get bundle quote Request a current annexes project quotation.
Bundle suitable ground screws, the steel frame and professional erection, then access discounted cladding, EPDM roofing and roofline within the same quotation. Eligibility and scope are confirmed for the project.