large long-format frame
ANNEXE001_FLAT_100 has a 25.9 m² external structural footprint from its published 7200 × 3600 mm dimensions. It is a large, long-format configuration with a listed overall height of 2503 mm.
Available project routesFrame-only supply nationwideGround-screw foundation assessmentProfessional frame erectionSelected roofing, cladding and roofline packages
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Annexe 001 – Flat Roof 100 Steel Frame
Reference ANNEXE001_FLAT_100. Compare this published annexe frame using the dimensions, weight, openings and project checks below; final drawings and the written quotation govern.
- Listed size
- 7200 × 3600 × 2503 mm
- Listed weight
- 1176 kg
- Approx. footprint
- 25.9 m²
- Frame reference
- ANNEXE001_FLAT_100
- Category
- Annexes
Online frame price · updated 7 September 2026£4,990.46
This is the frame price only. VAT basis, availability and delivery are confirmed in writing. Ground screws, erection and exterior materials are separate unless quoted.
Request current priceAt a glance
Annexe 001 – Flat Roof 100 Steel Frame is reference ANNEXE001_FLAT_100, a annexe frame listed at 7200 × 3600 × 2503 mm with an approximate 25.9 m² structural footprint and 1176 kg listed weight. The source listing does not publish a separate opening schedule, so openings must be confirmed in the supplied drawings. 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.
Frame-specific guide
What the published figures mean for ANNEXE001_FLAT_100.
These answers use this frame's actual catalogue dimensions, footprint, height, weight, category and roof description. They help comparison but do not replace the supplied drawings.
Potential uses
This annexe frame is listed within annexes. Possible briefs to assess include detached annexe project, guest accommodation project, accessible garden accommodation. Those are comparison ideas, not a claim that the frame is suitable without checking finished clear space, openings, loads, approvals and the final drawings.
Ground-screw foundation assessment
The published frame weighs 1176 kg and covers approximately 25.9 m². A ground-screw layout cannot be selected from footprint or weight alone: Forti Nova must review the structural reactions, ground conditions, screw positions, levels, access and engineer's requirements before quoting a foundation.
Ground screw foundationsDelivery and professional erection
For ANNEXE001_FLAT_100, erection planning must account for the 7200 × 3600 mm footprint, 2503 mm height, 1,176 kg listed frame weight, panel or member format, unloading point and route onto the prepared foundation. The quotation states whether unloading, lifting and erection are included.
Steel frame erectionRoof, cladding and exterior materials
The frame price does not by itself include a finished building. For a flat roof form, the project still needs the specified floor, insulation, membranes, roof covering, drainage, cladding, glazing, ventilation, services and internal finishes. Forti Nova can quote selected EPDM roofing, composite cladding and roofline with qualifying frame packages.
Complete frame packageNationwide supply and assessed installation
Forti Nova supplies steel frames nationwide from Blackburn. Ground-screw installation and frame erection are assessed by postcode, programme, access, design and site conditions; availability is confirmed in the written quotation.
Price this frame and packageReal Forti Nova site sequence
Need us to erect ANNEXE001_FLAT_100 for you?
These photographs show a Forti Nova light gauge steel frame installation from drawing and ground screws through to the erected structural shell. They demonstrate the work we can quote alongside ANNEXE001_FLAT_100; they do not claim to show this exact catalogue reference.
Request erection with this frame
01 Check the supplied drawings
Identify the numbered floor, wall and roof components and use the current project drawings for orientation, openings and assembly order.
02 Install the assessed foundations
Ground-screw type, positions, levels and acceptance requirements are set for the site and structural design before the frame is supported.
03 Set out the base frame
The base and floor members are positioned over the prepared foundation points, then checked against the supplied layout.
04 Connect and align floor members
Floor-frame junctions and member lines are assembled to the project drawings before the wall panels are raised.
05 Raise the wall panels
Preformed wall sections are positioned around the base while temporary stability and the specified panel arrangement are maintained.
06 Form openings and braced walls
Door and window openings, studs and bracing remain tied to the approved frame layout rather than being altered from a catalogue image.
07 Install the roof members
The roof members are lifted, located and connected in the sequence required by the project drawings and safe erection plan.
08 Check the erected structural shell
The assembled floor, walls, openings, bracing and roof geometry are checked before follow-on floor, roof and wall build-ups proceed.
Project-specific checks still govern. The final erection plan depends on the selected frame, current drawings, foundation, access, lifting and handling needs, site conditions and programme.
View the steel frame erection servicePublished specification
- Listed weight1176 kg
- Listed package dimensions3600 × 7200 × 2503 mm
Published openings
The source listing does not publish a separate opening schedule for this product. Confirm openings against the supplied drawings before order.
Source and quotation
This page uses manufacturer catalogue specifications with Forti Nova's online frame price updated on 7 September 2026.
Final manufacturer drawings, specification, availability, selling price and delivery scope are confirmed in writing.
Before ordering
Check the frame against the actual project.
A catalogue frame is useful for comparison. The project still needs the right clear space, openings, foundation, access, envelope and approvals.
Check usable dimensions
The listed frame is 7200 × 3600 mm. Insulation, cavities, linings and structural build-ups affect the finished clear space. Use project drawings for the final layout.
Check height and roof form
The catalogue lists a height of 2503 mm. Confirm finished floor, ceiling, roof build-up, drainage and any planning constraint.
Check access and handling
The source lists the frame at 1176 kg. Panel format, unloading, storage and the route from delivery point to foundation must be checked for the address.
Check the complete scope
This is listed under annexes. Confirm exactly what the frame price includes and separately define foundations, erection, envelope materials, glazing, services and finishing work.
Information needed
Send the job details once.
- Project postcode and access photographs
- Intended use and required clear dimensions
- Door, window and structural opening requirements
- Foundation status or ground screw requirement
- Frame-only, erection or exterior package scope
What the quote confirms
Current product, price and responsibilities.
The written quotation confirms the selected frame, current drawings, VAT basis, delivery, Forti Nova selling price, included services and exclusions.
Request ANNEXE001_FLAT_100 pricingProduct questions
11 factual answers about ANNEXE001_FLAT_100.
What are the published dimensions of Annexe 001 – Flat Roof 100 Steel Frame?
The listed overall dimensions are 7200 × 3600 × 2503 mm. Insulation, cavities, linings, roof and floor build-ups affect finished usable dimensions, so the supplied project drawings govern the final layout.
What is the footprint of frame ANNEXE001_FLAT_100?
The dimensions produce an approximate structural footprint of 25.9 m². This is a simple width-by-length comparison figure, not confirmed finished internal floor area.
How much does ANNEXE001_FLAT_100 weigh?
The published listed weight is 1176 kg. Delivery, unloading, panel handling, lifting, storage and the route from the delivery point to the foundation must still be planned for the site.
What openings are published for ANNEXE001_FLAT_100?
No separate opening schedule is published in the source listing. Confirm every opening in the supplied project drawings.
Is Annexe 001 – Flat Roof 100 Steel Frame a finished building?
No. It is listed as a annexe frame. Foundations, erection, floor, insulation, membranes, roof, cladding, glazing, services and internal finishes are separate unless the written Forti Nova quotation includes them.
Can the dimensions or openings of ANNEXE001_FLAT_100 be changed?
A change may require another published frame or a bespoke design. Structural dimensions, members and openings must be confirmed in approved project drawings before manufacture and must not be altered on site without approval.
Is the online price for ANNEXE001_FLAT_100 the complete project price?
No. The displayed figure is the online frame price only. Forti Nova confirms availability, VAT basis, delivery, drawings, included services and exclusions in writing.
Can Forti Nova supply ground screws and erect ANNEXE001_FLAT_100?
Yes, subject to assessment. Ground screws start from £65 + VAT per screw and professional frame erection starts from £1,250 + VAT. Ground conditions, screw type and quantity, structural loads, postcode, access, frame design and programme determine the final quotation.
What information is needed to quote ANNEXE001_FLAT_100?
Send the project postcode, intended use, access photographs, required clear dimensions, door and window requirements, foundation status, target programme and whether you need frame-only supply, erection, ground screws or exterior materials.
Do the online details replace the drawings for ANNEXE001_FLAT_100?
No. The final supplied drawings, structural information and written quotation take priority over the online summary for setting out, manufacture, openings, connections, assembly and responsibility boundaries.
Does ANNEXE001_FLAT_100 include planning or Building Regulations approval?
No approval is implied by a catalogue listing. Building Regulations can depend on floor area, intended use, sleeping accommodation, proximity to boundaries, construction and services. Obtain project-specific professional and local-authority advice where required.
Nearest published sizes
Compare related annexes.
These are the nearest configurations in the same published category by structural footprint. Open each page to compare dimensions, weight, openings and current quotation requirements.
View all Annexes
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
Bundle advantage
Ground screws · frame · erection
Get bundle quote Request the current ANNEXE001_FLAT_100 project price.
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.