3.8x3.4m 290mm Aluminum Spigot Arch Truss Gateway for Weddings & Exhibitions

packing weight:70kg

packing volume:2cbm

half circle diameter truss 1.9m 1p

straight 290mm truss 1.5m 2p

base 300x600mm 2 p

Product Information

Product Description

The DragonStage 3.8x3.4m 290mm Spigot Arch Truss Gateway is a compact modular entrance structure designed for temporary event applications where the truss itself is also part of the visual presentation.

The confirmed overall external dimensions are:

3800mm wide × 3400mm high
approximately
12.47ft wide × 11.15ft high

The gateway is built from 290×290mm spigot truss and supported at both sides by 300×500mm base plates.

Its curved upper section gives the structure a softer visual profile than a conventional rectangular truss portal, making it particularly suitable for weddings, exhibitions, corporate events, entrances, photo areas, and decorative stage applications.

For other modular aluminum structures, see Aluminum Truss.

Designed as an Event Entrance Gateway

This structure is especially suited to applications where guests pass through the truss rather than where the truss is used only as an overhead technical beam.

Typical applications include:

• wedding entrances

• exhibition entrances

• trade-show gateways

• corporate event entrances

• red-carpet entrances

• photo zones

• church events

• festival entrances

• decorative stage entrances

• branded event gateways

The arch shape gives the entrance a more decorative appearance while retaining the modular logic of a professional truss system.

290×290mm Spigot Truss System

The structure uses:

290 × 290mm square spigot truss

Rather than being one permanently welded arch, the gateway is assembled from modular truss sections.

The spigot connection system makes it possible to separate the structure into transportable sections for:

• shipping

• warehouse storage

• repeated event use

• installation

• dismantling

• replacement of individual sections

For other products using the same connection concept, see Standard Spigot Truss.

Curved Upper Section

The defining visual feature is the curved upper truss.

Instead of a conventional rectangular:

vertical column → 90° corner → horizontal beam

the curved section creates a continuous arch profile between the two sides.

This makes the structure particularly useful when the truss needs to perform two roles at the same time:

temporary event structure + visible event decoration

Compact 3.8m × 3.4m Overall Size

This gateway is much more compact than the large arch structures used across roads, festival entrances, or large concert sites.

Its external dimensions are approximately:

Width: 3.8m
Height: 3.4m

This makes it more appropriate for:

• hotel ballrooms

• wedding venues

• exhibition halls

• indoor event spaces

• stage-side entrances

• event photo areas

• smaller outdoor event entrances

The actual clear passage width and clear height are not calculated from the external dimensions alone and should be confirmed from the final production drawing.

300×500mm Base Plates

Each side of the arch connects to a base plate measuring:

300 × 500mm

The base provides the floor connection point for the vertical truss section.

The supplied base dimension should not, by itself, be interpreted as a confirmed ballast or outdoor-stability specification.

For outdoor installation, additional equipment, banners, lighting, or decorative material, the complete setup should be reviewed according to the actual site conditions.

Suitable for Lighting, Signage and Event Decoration

The arch truss can form a support framework around different event-design elements, such as:

• event signage

• logos

• floral decoration

• fabric decoration

• lightweight visual elements

• compatible stage lights

• entrance branding

Where lighting, signs, decorations, or other equipment are attached to the truss, their weight, position, mounting method, and the complete configuration should be confirmed before use.

For related lighting structures, see Lighting Truss.

Why Use an Arch Instead of a Rectangular Truss Gate?

A rectangular truss gate usually gives a more technical or industrial appearance.

An arch gateway changes the visual character of the same modular truss concept.

It can be especially useful when:

• the entrance itself is part of the event design

• the client wants a softer visual profile

• the structure will appear in wedding photographs

• the gateway needs to combine decoration and technical mounting

• a conventional square truss portal looks too rigid for the event theme

This is why curved truss gateways are commonly selected for weddings, exhibitions, and branded event entrances rather than only for technical stage structures.

Modular and Reusable

The gateway is designed as a reusable temporary event product.

After an event, the structure can be dismantled into individual truss sections and base components for transportation and storage.

For rental companies, this is more practical than manufacturing a permanent welded decorative arch for each project.

The modular sections can also be discussed for customized gateway dimensions or related decorative truss configurations.

For other special-format systems, see Typical Feature Truss System.

Main Features

• Overall external size 3800 × 3400mm

• Approx. 12.47 × 11.15ft

• 290×290mm square truss

• Spigot connection system

• Curved arch gateway design

• 300×500mm base plates

• Modular construction

• Reusable for multiple events

• Suitable for wedding and exhibition entrances

• Suitable for signage and decorative applications

• Can integrate compatible event lighting

• Custom dimensions available

Typical Applications

• Wedding entrance arch

• Exhibition entrance gateway

• Trade-show entrance

• Corporate event gateway

• Red-carpet entrance

• Photo booth / photo zone structure

• Church event entrance

• Festival gateway

• Event branding structure

• Decorative lighting entrance

• Stage-side entrance

Customization

Although this SKU has an overall external size of 3.8 × 3.4m, similar arch structures can be manufactured according to different project requirements.

Customization can involve:

• overall width

• overall height

• arch geometry

• truss dimensions

• base configuration

• finish

• connection with lighting or decoration

• entrance layout

For custom manufacture, the required external dimensions and intended application should be confirmed before production.

Important Product Note

The confirmed product information for this SKU includes:

• overall external height: 3400mm

• overall external width: 3800mm

• truss cross-section: 290×290mm

• connection: spigot truss

• base size: 300×500mm

• curved arch configuration

The current information does not establish:

• clear opening dimensions

• allowable hanging load

• wind resistance

• required ballast

• anchoring requirement

• maximum sign or lighting weight

• engineering approval for a specific installation

These depend on the actual equipment, installation environment, indoor/outdoor use, and final configuration.

FAQ

What is the overall size of this arch truss gateway?
The confirmed external dimensions are approximately 3800mm wide × 3400mm high, or about 12.47 × 11.15ft.

Is 3800mm the clear opening width?
No. 3800mm is the overall external width provided for this product. The clear passage width should be confirmed from the final drawing.

What truss size is used?
The gateway uses 290×290mm square spigot truss.

What type of connection does the truss use?
It uses a modular spigot connection system.

What size are the base plates?
The confirmed base size is 300×500mm.

Is this mainly a wedding arch?
Wedding entrances are one suitable application, but the same structure can also be used for exhibitions, corporate events, red carpets, photo areas, and other temporary entrance displays.

Can lights be mounted on the arch?
Compatible stage lighting can be incorporated, but fixture weight, position, clamps, and the complete structural configuration should be confirmed first.

Can banners or logos be attached?
Yes, the arch can be used as a framework for event branding or signage. The dimensions, weight, and mounting position of the signage should be provided before the final configuration is confirmed.

Can floral decorations be added for weddings?
Yes. The curved shape is suitable for decorative event applications, including floral and fabric arrangements, provided the added weight and mounting method are considered.

Can the dimensions be customized?
Yes. DragonStage can manufacture similar curved truss gateways in different overall widths and heights.

Can this arch be used outdoors?
Outdoor use depends on the complete installation, wind exposure, attached decoration or equipment, and the required base/ballast or anchoring arrangement. The 300×500mm base plate alone does not establish an outdoor stability rating.

Can I order replacement truss sections separately?
Yes. Because the gateway is based on modular spigot truss, compatible replacement or additional sections can be discussed according to the existing dimensions and connection geometry.

Why Choose DragonStage

DragonStage manufactures modular Aluminum Truss products as well as customized curved and special-shape event structures.

For an entrance arch, overall size is only one part of the requirement. The intended use—wedding decoration, signage, lighting, exhibition branding, or simple guest access—also affects the final configuration.

This product therefore combines a standard 290mm spigot-truss system with a customized curved geometry for a more decorative event application.

Soft CTA

For quotation, please provide:

• required overall width

• required overall height

• indoor or outdoor use

• wedding, exhibition, or other application

• whether lighting will be installed

• whether signage or decoration will be attached

• required quantity

• preferred finish

DragonStage can then confirm the suitable arch-truss configuration.