1. What Is the Structure Designed to Do?

A large concert stage is not only a roof over a performance platform.

It normally has to organize several different functions within one temporary structure:

Roof Structure → Performance Platform → Backstage Space → Access → Production Space

The aluminum truss roof defines the main covered event area and provides the overhead structural framework.

Below it, the Ringlock stage platform creates the elevated performance level.

Behind the performance area, backstage and dressing spaces separate performer preparation and production activities from the audience-facing stage.

Rear access then connects these functional zones.

This is why the complete structure should be analyzed as a system of coordinated modules rather than as one oversized truss product.

The same modular principle appears across stage, truss and scaffold structures: standardized components perform specific jobs, while the complete configuration is created by how those components and systems are combined. This principle is explained further in Modular System Logic for Stage, Truss & Scaffold.

2. Overall Structural Configuration

The structure can be divided into four main zones.

Zone A — Aluminum Peak Roof Structure

The upper part of the system is a large aluminum spigot truss structure with a peaked roof.

The outside truss configuration is approximately:

The distinction between the outside and inside truss dimensions is important.

The complete external framework defines the larger structural envelope, while the internal truss arrangement defines the working roof zone within that envelope.

The exact relationship between individual roof beams, towers, suspension points and production equipment should always be confirmed from the final project drawing.

Zone B — Elevated Ringlock Stage Platform

The performance area sits below the aluminum roof structure.

In the complete stage concept, this lower zone is treated as an elevated modular Stage Platform Structure rather than as part of the aluminum roof itself.

For a Ringlock stage platform, the functional component groups normally include:

• base/support components;

• Ringlock vertical standards;

• horizontal ledgers;

• diagonal bracing;

• stage deck support members;

• stage platform/deck panels;

• edge and access components where required.

The exact Ringlock BOQ for this particular configuration has not been established in the source information used for this structural breakdown.

Therefore, the stage should be understood here as a structural module, not as a confirmed component-by-component quotation.

Zone C — Backstage and Dressing Areas

Behind the main performance zone are backstage rooms and dressing areas.

These are not part of the aluminum roof BOQ itself, but they are part of the functional layout of the complete stage system.

They provide dedicated temporary spaces for performers and production activities while keeping those activities separated from the audience-facing performance zone.

Zone D — Rear Access

Rear stairs connect ground level, backstage areas and the elevated performance platform.

Within the complete event structure, these stairs should be considered as an access module rather than simply an accessory added after the stage has been completed.

Similar temporary access configurations can be organized through Stair & Walkway Structures.

3. Why Separate the Roof and Stage Into Two Structural Systems?

This is one of the most useful ways to understand the configuration.

The aluminum roof and the Ringlock stage perform different jobs.

Aluminum Truss System

Its primary role is the large overhead event framework:

• defining the roof span;

• forming the peaked roof geometry;

• creating the overhead production zone;

• providing the structural framework around which roofing and event equipment can be arranged.

Ringlock Stage System

Its primary role is the lower working and performance platform:

• creating the required stage level;

• supporting the stage deck system;

• providing a modular substructure below the performance area;

• allowing stairs and other access modules to be integrated into the stage layout.

So although the audience sees one concert stage, structurally it is easier to understand it as:

Aluminum Roof Structure
+
Ringlock Stage Platform
+
Backstage Modules
+
Access Modules

That functional division is the basic logic behind this hybrid configuration.

A larger example using the same general Ringlock + aluminum principle can be seen in the 20x18m Hybrid Ringlock Stage Structure Breakdown.

4. Backstage and Dressing Areas

A notable feature of this configuration is that the structure does not stop at the front performance platform.

Backstage rooms and dressing cabins are incorporated behind the main stage area.

These spaces extend the structure from a simple performance platform into a more complete event-working environment.

Functionally, they can provide separate zones for activities such as:

• performer preparation;

• temporary dressing space;

• backstage waiting;

• production support;

• controlled movement between backstage and the performance area.

For structural planning, these areas should not simply be treated as "extra tents behind the stage."

Their position affects the overall footprint, circulation and access arrangement of the event structure.

However, the supplied information does not provide a confirmed detailed BOQ for these backstage enclosures. Exact enclosure dimensions, component quantities and structural details should therefore be confirmed separately when developing a new project.

5. Rear Access and Stairs

A stage of this type needs to be considered in three dimensions.

The performance deck is elevated above ground level, while backstage personnel and performers need a practical route between ground level, backstage areas and the stage.

Rear stairs therefore form an access module within the complete configuration.

Their exact arrangement can change according to:

• finished stage height;

• backstage layout;

• number and position of entrances;

• performer circulation;

• equipment movement requirements;

• available site space.

This creates an important distinction in structural planning:

The stage platform defines where people work and perform.
The access system defines how they reach it.

The stair arrangement should therefore be established together with the stage and backstage layout rather than added as an afterthought.

Where stairs, elevated walkways and circulation become a larger part of the project, they can be treated as a separate Access Structure within the complete system.

6. Functional Relationship Between the Main Modules

The complete structure can be read as a layered system.

Upper Layer — Roof

The aluminum spigot truss creates the large covered overhead framework.

Middle Layer — Event Working Zone

The area beneath the roof becomes the main performance and production space.

Lower Layer — Stage Platform

The modular Ringlock substructure establishes the elevated performance level.

Rear Zone — Backstage

Dressing and backstage spaces extend the usable event structure behind the performance area.

Access Layer — Stairs and Circulation

Rear access connects the ground, backstage spaces and elevated stage.

This modular way of looking at the structure is useful because changing one functional requirement does not necessarily mean changing every other module in exactly the same way.

For example:

Changing backstage layout

does not create the same structural problem as:

Changing roof span

or:

Changing finished stage height.

Each requirement should first be traced to the structural module it affects.

7. Hybrid Structure: Ringlock + Aluminum

This structure illustrates an important principle behind hybrid temporary structures.

"Hybrid" does not simply mean that steel and aluminum happen to appear in the same project.

It means that different structural systems are assigned to different functional jobs and then coordinated as one temporary event structure.

In this configuration:

The value of the hybrid approach is therefore best understood through functional division.

The Ringlock platform does not need to become an aluminum truss platform simply because aluminum is used above it.

Likewise, the large aluminum roof does not need to be replaced by Ringlock simply because Ringlock is used below.

Each system is assigned to the structural role where its modular geometry and practical installation method make sense.

This functional integration is the central idea behind the DragonStructure Hybrid Structure category.

8. Practical Assembly Logic

The exact erection procedure depends on the final drawings, site conditions and project-specific engineering requirements.

At a system level, however, the structure can be understood through the following assembly logic.

Step 1 — Establish the Overall Layout

Set out:

• roof footprint;

• stage footprint;

• backstage zones;

• access positions;

according to the approved project layout.

Step 2 — Build the Stage Substructure

Assemble the modular Ringlock support grid and establish the required platform level.

Deck-support components and stage panels can then form the main performance surface.

Step 3 — Establish Backstage and Access Zones

Backstage positions, rear stairs and circulation routes should correspond to the finished stage level and final event layout.

Step 4 — Assemble the Aluminum Roof Structure

The aluminum spigot truss modules form the outside framework and peaked roof geometry according to the project drawing and specified erection procedure.

Step 5 — Coordinate the Systems

Before the structure is treated as a complete event stage, the interfaces between:

• stage

• backstage

• access

• production equipment

• roof

need to be checked against the final project drawings.

For the broader principles behind this sequence, see Installation Methodology for Modular Stage, Truss & Scaffold Systems.

This sequence describes the modular relationship between the systems. It is not a substitute for a project-specific engineered erection method.

9. Component Groups

Because the available source information is more detailed for the aluminum truss portion than for the lower Ringlock stage and backstage modules, it is more accurate to describe the complete system by component groups rather than invent an exact combined BOQ.

Aluminum Roof System

Typical groups within the confirmed roof concept include:

• aluminum spigot truss sections;

• roof beams;

• vertical tower sections;

• peak-roof members;

• truss connection components;

• bases and related tower accessories;

• roof-cover related components where specified.

Ringlock Stage Platform

The lower stage module can include:

• Ringlock standards;

• ledgers;

• diagonal braces;

• base components;

• deck support members;

• stage decks;

• stage-edge components.

Backstage Module

Depending on the final project:

• backstage enclosure framework;

• dressing-area partitions or cabins;

• covers / enclosure materials;

• entrances and circulation openings.

Access Module

Depending on the required stage level and layout:

• rear stairs;

• stair supports;

• landings;

• handrails / guardrails;

• connection components.

A final BOQ should be developed only after the complete stage height, backstage arrangement, stair positions and other project dimensions are confirmed.

10. What Can Change in a New Project?

A 20 × 16m roof footprint does not automatically define the complete stage underneath it.

Several variables can change the final configuration substantially.

Roof Requirements

• overall width and depth;

• eave / tower height;

• peak height;

• internal working area;

• roof geometry;

• lighting, LED and sound equipment arrangement.

Stage Requirements

• stage width and depth;

• finished deck height;

• deck layout;

• side or rear extensions.

Backstage Requirements

• number of dressing areas;

• required backstage depth;

• separation between performer and production spaces;

• entrances and exits.

Access Requirements

• number of stairs;

• stair position;

• access width;

• landings;

• equipment access requirements.

This is why two stages with the same nominal 20 × 16m roof size may still require different lower structures and different BOQs.

11. Suitable Applications

This structural concept is suitable as a reference configuration for project-scale temporary event structures such as:

• outdoor concerts;

• music festivals;

• touring productions;

• large public performances;

• temporary festival stages;

• events requiring integrated performance and backstage areas.

For touring applications in particular, repeated assembly, transport and modular reuse become important considerations beyond the dimensions of the finished structure. See Temporary Stage Truss Systems for Touring Productions for the broader system logic.

The configuration should always be adapted to the actual event equipment, site, access requirements and environmental conditions rather than copied only from the nominal roof dimensions.

12. Engineering and Verification Boundary

This page is a structural breakdown of the supplied configuration, not a project-specific structural calculation.

The supplied information confirms the general system concept, including:

• the large peaked aluminum roof;

• elevated stage;

• backstage / dressing areas;

• rear access concept.

It does not by itself establish project-specific:

• allowable structural loads;

• wind resistance;

• suspended equipment capacity;

• ballast or foundation requirements;

• safety factors;

• local-code compliance;

• engineering approval.

For readers who need to understand the distinction between general structural guidance and project-specific verification, see Safety Standards & Engineering Constraints.

For a new project, the roof, stage, equipment loads, structural interfaces, access arrangement and site conditions should be reviewed together rather than assuming that a previous configuration can be reproduced unchanged.

13. Information Needed to Adapt This Structure

To develop a similar structure for another project, provide:

• required stage width and depth;

• finished stage height;

• required roof width, depth and height;

• LED screen dimensions and positions;

• lighting and sound equipment arrangement;

• backstage / dressing-room requirements;

• stair and access requirements;

• existing Ringlock or aluminum truss equipment, if any;

• site drawings or available installation area;

• project location and relevant site/environment information.

With these inputs, the complete structure can first be divided into the appropriate roof, stage, backstage and access modules before the final drawings and BOQ are developed.

Related Structure References

For readers comparing this structure with other DragonStructure configurations:

• 20x18m Hybrid Ringlock Stage Structure Breakdown — a larger hybrid stage showing how Ringlock and aluminum roof systems are organized together.

• Hybrid Structure — broader entry point for structures combining multiple structural systems.

• Ringlock + Aluminum Structure — structures specifically combining steel Ringlock with aluminum structural components.

• Stage Platform Structure — Ringlock and other modular solutions focused on elevated temporary stage platforms.

• Stair & Walkway Structure — temporary access and circulation structures used around elevated platforms.

Structure Classification

Primary Function: Large Temporary Concert Stage Structure
System Family: Hybrid Structure
DragonStructure Category: Ringlock + Aluminum Structure
Main Modules: Aluminum Peak Roof + Ringlock Stage Platform + Backstage Areas + Rear Access

View relevant Configuration & Pricing https://www.dragontruss.com/20x16m-Heavy-Duty-Peak-Roof-Truss-Stage-System-with-Backstage-Rooms-Dressing-Cabins-Aluminum-Spigot-Truss-pd578360048.html