Overview

This 4m × 6m structure is a single-level temporary FOH shelter for audio, lighting, video and other event-production control functions.

Unlike a multi-level FOH tower, the working area is concentrated on one approximately 24m² footprint. The main body uses modular steel Ringlock components and platform planks, while a separate aluminum frame creates the pitched roof above the working area.

The confirmed geometry is 4m wide × 6m deep, with approximately 2m eave height, 2.5m roof ridge height, and a maximum Ringlock structure height of approximately 3m. Roof tarpaulins and curtain panels complete the enclosure package.

Functionally, this belongs primarily to FOH & Control Structure, while its Ringlock/aluminum combination also makes it part of the Ringlock + Aluminum Structure family.

1. What Is This Structure?

The easiest way to understand this FOH is not as a scaffold with some curtains around it, but as a temporary technical workspace assembled from four coordinated structural modules:

Ringlock Main Frame

Single-Level Working Platform

Aluminum Pitched Roof

Fabric Roof & Curtain Enclosure

Each module performs a different job.

The Ringlock framework defines the main 4×6m structural grid. Platform planks turn that grid into the working floor. Aluminum roof beams create the pitched roof geometry, while tarpaulins and curtains convert the open framework into a more protected production-control space.

This modular separation is the main structural characteristic of the product.

2. Why “Single-Level FOH Shelter” Is More Accurate Than “FOH Tower”

This distinction is important on DragonStructure.

The previously discussed 4×4m FOH uses multiple vertically distributed working levels and internal access. Its main structural problem is therefore:

How do we create several technical working levels vertically?

This 4×6m structure solves a different problem:

How do we create one relatively large protected technical working area on a single level?

There are 42 platform planks, but no confirmed internal stair, ladder or upper working platform in this configuration.

So its defining geometry is horizontal rather than vertical:

4m width × 6m depth → one 24m² FOH footprint

rather than:

small footprint × multiple levels → FOH tower

That is why FOH Shelter is a more useful structural name for this configuration.

3. Overall Structural Configuration

The confirmed dimensions are:

These dimensions should be read together rather than reducing the structure to “4×6×3m.” In particular, 3m overall structure height and 2.5m roof ridge height describe different parts of the complete configuration.

4. Main Ringlock Structure

The primary body contains:

• 12 × 2m Ringlock vertical standards

• 12 × 1m Ringlock vertical standards

• 99 × 2m horizontal ledgers

• 6 × 2.83m diagonal braces.

The Ringlock system creates the modular structural grid below and around the FOH working area.

In practical structural terms:

Vertical Standards
→ establish the vertical framework.

Horizontal Ledgers
→ connect the standards and define the modular bays.

Diagonal Braces
→ brace selected bays within the configuration.

Platform Planks
→ convert the lower grid into the usable FOH floor.

This is a good example of using a Ringlock Structure for something other than a conventional scaffold or stage. Here, the Ringlock grid becomes the body of a temporary technical-control shelter.

5. A 24m² Single-Level Technical Working Area

The 4m × 6m footprint gives a nominal plan area of 24m².

The configuration uses 42 platform planks with a listed 0.2780m specification to create the working-floor system.

This is one of the most important differences between this structure and a compact or multi-level FOH.

Instead of stacking technical departments vertically, a 4×6m footprint allows consoles, racks, operators and circulation to be arranged across one broader level.

Possible production uses include:

• audio mixing;

• lighting control;

• video control;

• show control;

• production coordination.

These are possible FOH functions, not confirmed equipment assignments for this specific configuration.

The actual console positions, operator count and equipment layout should be defined before finalizing a customized version.

6. Why the Roof Uses a Separate Aluminum System

The main FOH body is Ringlock, but the pitched roof is not created simply by continuing the Ringlock grid upward.

Instead, the upper package contains:

• 8 × 2.2361m aluminum roof beams

• 9 × 2m aluminum roof connecting beams.

These components form a dedicated roof module above the Ringlock working structure.

The complete structure can therefore be read vertically as:

          PITCHED ALUMINUM ROOF
               /\
              /  \
             /    \
        2m  /      \  2m
           │        │
           │  FOH   │
           │ WORKING│
           │  AREA  │
           ├────────┤
           │RINGLOCK│
           │PLATFORM│
           └────────┘
              4m

The important point is not simply that two materials appear in the same product.

The structural logic is:

Ringlock creates the modular working structure; aluminum creates the roof geometry.

That functional separation is why this is genuinely a Ringlock + Aluminum Structure rather than merely a Ringlock booth containing a few aluminum accessories.

7. Pitched Roof Geometry

The roof has a confirmed 2m side/eave height and approximately 2.5m ridge height.

That produces a symmetrical pitched-roof profile above the FOH workspace.

For the customer, this roof geometry is useful to understand separately from the Ringlock grid because changing the roof and changing the FOH floor are not necessarily the same structural modification.

For example, a customer may keep the same 4×6m working footprint but request:

• a different roof height;

• a different roof pitch;

• different enclosure geometry;

• a more open front;

• different curtain positions.

In that situation, the aluminum/enclosure module changes while much of the basic Ringlock working-area concept may remain recognizable.

That modular independence is one of the useful characteristics of a hybrid structure.

8. Roof Tarpaulin System

The roof covering consists of:

• 3 × 11.9443m² roof tarpaulins

• 2 × 1m² triangular tarpaulins.

The three main roof-cover sections work with the pitched aluminum frame, while the triangular pieces correspond to the triangular geometry created at the roof ends.

This is a small detail in the BOQ, but structurally it helps explain why the enclosure cannot be understood simply as one rectangular 4×6m sheet laid over the top.

The roof has geometry, and the fabric package follows that geometry.

9. Side and End Curtain Enclosure

The vertical enclosure contains:

• 2 × 12m² side curtains

• 1 × 8m² front/rear curtain panel.

The image also makes the operating concept clear: the FOH does not have to become a completely closed box.

For event control, one side can remain substantially open where operators need visual connection with the stage, while other sides provide enclosure around the technical workspace.

That is an important functional distinction.

For an FOH, the objective is usually not:

close every side

but:

protect the working area while preserving the openings required for operation.

The exact entrance, viewing opening, cable opening and curtain arrangement can therefore change with the production layout.

10. The Structure Is Hybrid in Two Directions

There are actually two different types of integration in this product.

Structural integration

Steel Ringlock body + aluminum roof frame

This determines how the physical structure is divided.

Functional integration

Working platform + technical workspace + weather enclosure

This determines how the structure is used.

Together they produce something more specific than a generic covered scaffold:

a temporary single-level FOH technical shelter.

This is why classification should still be led by FOH function, not by the fact that the product contains both steel and aluminum.

11. Ballast-Related Steel Components

The configuration contains:

2 × 6m long, 50×2mm steel ballast pipes with accessories.

These are part of the confirmed supplied configuration and should remain in the structural BOQ.

However, the component quantity should not be converted into an unsupported ballast conclusion.

The accurate distinction is:

Confirmed configuration:
Two 6m ballast-related steel pipes and accessories are included.

Not established:
A universal ballast weight or stabilization requirement for this 4×6m FOH.

For outdoor use, the final stabilization arrangement depends on the complete structure, covered area, site conditions and project-specific requirements.

12. Complete BOQ with Structural Functions

Packing Weight: approximately 1,500kg
Packing Volume: approximately 4CBM.

13. How the Modules Work Together

The complete relationship can be summarized as:

ALUMINUM ROOF BEAMS
        ↓
PITCHED ROOF GEOMETRY
        ↓
ROOF TARPAULINS
        ↓
CURTAIN ENCLOSURE
        ↓
RINGLOCK MAIN FRAME
        ↓
PLATFORM PLANKS
        ↓
SINGLE-LEVEL FOH WORKSPACE
        ↓
GROUND / PROJECT-SPECIFIC
STABILIZATION ARRANGEMENT

This is a functional structural relationship, not a calculated load-path analysis.

For Product-page purposes, the important thing is that the reader understands where each system starts and ends.

The Ringlock structure is not the roof.

The aluminum roof is not the working floor.

The curtains are not the primary structure.

They are separate modules coordinated into one FOH.

14. Assembly Logic

At a practical modular level, the structure can be assembled in the following sequence:

1. Set out the 4×6m Ringlock footprint.

2. Assemble the lower vertical standards and horizontal ledgers.

3. Install the required diagonal bracing.

4. Complete the Ringlock grid supporting the FOH working area.

5. Install the 42 platform planks to form the technical floor.

6. Continue the upper Ringlock framework required by the configuration.

7. Assemble the aluminum roof beams and connecting beams.

8. Form the pitched roof with approximately 2m eaves and a 2.5m ridge.

9. Install the main roof and triangular tarpaulin sections.

10. Install the required side and end curtain panels.

11. Complete the project-specific stabilization arrangement.

This explains the modular assembly sequence only. It is not intended as a complete engineered erection procedure.

15. Why the 4x6m Footprint Matters

The footprint is not merely a product dimension.

For an FOH, working-area geometry directly affects how the technical operation can be organized.

A 4×6m single-level structure gives a different operational layout from:

• a 2×2m compact booth;

• a 4×4m booth;

• a 4×4m multi-level tower;

• a long, narrow control platform.

With this configuration, the 6m depth becomes useful when several consoles, racks, tables or operator positions need to share one protected technical area.

The customer should therefore choose FOH dimensions from the equipment and operator layout backward, rather than selecting a nominal booth size first and trying to force everything inside afterward.

A practical planning sequence is:

Equipment + Operators

→ Working Layout

→ Required Floor Area

→ FOH Footprint

→ Ringlock Grid

→ Roof & Enclosure

That is the transferable structural logic behind this product.

16. Difference from the 4x4m Multi-Level FOH Tower

These two hybrid FOH products should not be treated as simple size variations.

This distinction is useful for DragonStructure because it shows that FOH dimensions alone do not define the structural approach.

Two FOHs can use the same Ringlock + aluminum family but solve very different production-layout problems.

17. Suitable Applications

This structural configuration is suitable as a reference for:

• concert FOH control areas;

• festival production-control shelters;

• audio mixing positions;

• lighting-control areas;

• video and show-control workspaces;

• temporary event technical booths;

• protected production work areas.

The exact application does not establish the equipment capacity of the platform. Equipment dimensions and weights should be provided when developing the final project configuration.

18. What Changes When the Project Requirement Changes?

Because this is a modular hybrid structure, different requirements affect different modules.

If more working space is required

The Ringlock footprint and platform quantity change.

If multiple working levels are required

The structure moves toward a multi-level FOH tower, and vertical access becomes a major part of the design.

If the roof height changes

The aluminum roof geometry and its interface with the main structure need to be reconsidered.

If more sides need enclosure

The curtain-support and fabric configuration changes.

If the stage sightline requires a larger opening

The front-facing enclosure arrangement changes.

If larger equipment must enter the FOH

Entrance dimensions and circulation should be defined before the enclosure layout is finalized.

If the structure is used outdoors

The final covered area, complete configuration and site conditions become relevant to project-specific stabilization and engineering verification.

The key principle is:

Do not resize the whole structure blindly when only one functional requirement changes. First identify which structural module that requirement affects.

19. Information Needed for a Similar FOH

For a similar project, we normally need:

• required width and depth;

• required working-floor height;

• required clear internal height;

• audio / lighting / video functions;

• operator quantity;

• console and rack dimensions;

• equipment weights where relevant;

• required stage sightline;

• entrance position and dimensions;

• cable-entry positions;

• open and enclosed sides;

• roof-cover requirement;

• indoor or outdoor use;

• installation site conditions;

• existing Ringlock equipment, if the customer wants to reuse it;

• drawings, sketches or reference photos.

This information allows the structure to be developed from the actual technical workflow rather than from a nominal FOH size alone.

20. Engineering / Verification Boundary

The confirmed configuration establishes:

• 4m × 6m footprint;

• approximately 3m overall Ringlock structure height;

• 2m eave height;

• 2.5m roof ridge height;

• Ringlock main structure;

• 42 platform planks;

• aluminum pitched roof frame;

• roof tarpaulin package;

• curtain enclosure;

• ballast-related steel pipes;

• approximately 1,500kg packing weight;

• approximately 4CBM packing volume.

This configuration does not establish universal values for:

• platform allowable load;

• roof allowable load;

• wind resistance;

• required ballast weight;

• anchoring requirements;

• ground-bearing requirements;

• safety factors;

• certification;

• engineering approval.

Those items require project-specific information and, where applicable, engineering verification.

21. Related DragonStructure Pages

For more structures organized around production-control functions, see FOH & Control Structure. This is the primary category for FOH booths, technical platforms, console shelters and production-control areas.

Because this configuration combines a steel Ringlock working structure with a separate aluminum roof, it also belongs to Ringlock + Aluminum Structure.

For the broader modular system behind the booth body and working platform, see Ringlock Structure.

22. Original DragonTruss Product & Configuration

Original Product:
4x6m Hybrid Ringlock FOH Control Booth with Aluminum Roof Frame and Weather Curtains

View Full Product Configuration & Pricing

DragonTruss remains the commercial product destination for the supplied configuration, BOQ and quotation, while this DragonStructure page focuses on how the single-level Ringlock workspace, aluminum pitched roof and curtain enclosure fit together as one FOH structure.

FAQ

Is this 4x6m FOH a booth or a tower?

It is better classified as a single-level FOH shelter/control booth, not a tower. Its main working area is arranged horizontally across the 4×6m footprint, and no elevated second working level is confirmed in this configuration.

Why use a 4x6m footprint instead of a smaller multi-level FOH?

The two layouts solve different space problems. A 4×6m single-level FOH provides a larger continuous technical working area, while a multi-level tower distributes functions vertically. The appropriate arrangement depends on equipment, operators, available ground area and production workflow.

Is the entire FOH made from Ringlock?

No. The main working structure uses Ringlock, while eight aluminum roof beams and nine aluminum connecting beams form the pitched roof.

What are the confirmed roof heights?

The side/eave height is approximately 2m, and the pitched roof rises to approximately 2.5m at the ridge. The complete Ringlock structure has an overall height of approximately 3m.

How large is the working area?

The nominal 4m × 6m footprint equals 24m². The actual usable layout depends on the installed structural members, equipment, operator positions and circulation requirements.

Is the working floor included?

Yes. The configuration contains 42 platform planks for the working-floor system.

Are roof covers and curtains included?

Yes. The configuration includes three 11.9443m² roof tarpaulins, two 1m² triangular tarpaulins, two 12m² side curtains and one 8m² front/rear curtain panel.

Does the FOH have to be completely enclosed?

No. The enclosure can be configured around the operating requirement. FOH structures normally need to consider stage sightlines, entrances, cable routes and equipment access as well as weather protection.

Can this structure be converted into a multi-level FOH?

The FOH concept can be developed into a multi-level configuration, but that is a structural change rather than simply adding another platform. The vertical framework, working levels, access and other relevant modules need to be configured for the new requirement.

Does the included steel pipe define the required ballast?

No. The configuration contains two 6m-long 50×2mm steel ballast pipes with accessories, but this does not establish the ballast weight required for a particular installation. That depends on the complete structure and actual project conditions.

Recommended DragonStructure Classification