1. 300mm Ladder / Flat Truss Design

This product uses a two-chord ladder configuration.

Compared with triangle or square truss, the flatter structure can provide:

• smaller storage volume;

• less visual bulk;

• simpler straight mounting framework;

• easier integration into displays and lighting setups.

It is particularly useful where a full box truss would be unnecessarily large.

2. 50 × 3mm Main Tubes

Main tube specification:

50mm outside diameter

3mm wall thickness

approximately:

1.97in OD × 0.12in wall

This is one of the most important differences between this product and lighter ladder truss using thinner main tubes.

When comparing products, check:

truss size + tube diameter + wall thickness + connection type

rather than looking only at “300mm truss.”

3. 25 × 2mm Bracing

Brace specification:

25mm outside diameter

2mm wall thickness

approximately:

0.98in OD × 0.079in wall

The diagonal bracing connects the two main chords and forms the repeating ladder-truss structure.

4. Bolt Connection System

This product uses:

Bolt / Screw Connections

rather than:

Conical Couplers + Pins + Safety Clips

This makes it a separate product family from your 290mm spigot ladder truss.

For replacement or expansion orders, the existing bolt geometry must be checked before purchase.

5. Aluminum Construction

The truss is manufactured from aluminum tubing, helping keep the system suitable for temporary event equipment that may be repeatedly:

transported → assembled → dismantled → stored

The standard appearance is natural / polished aluminum.

6. Standard Lengths from 0.5–2.5m

DragonEvent can offer standard priced variants such as:

0.5m / 1.64ft

1.0m / 3.28ft

1.5m / 4.92ft

2.0m / 6.56ft

2.5m / 8.20ft

You can add the exact prices directly to each SKU.

7. Other Custom Lengths Available

Custom manufacturing is useful when standard sections cannot create the required finished dimension.

Typical reasons include:

• fixed venue dimensions;

• exhibition booth layouts;

• studio installations;

• replacement sections;

• recurring rental configurations;

• matching an existing compatible system.

Structural Data Note

No certification, third-party test report or third-party load table is carried over to this DragonEvent page.

If numerical structural capacity is required for a particular installation, it should be confirmed using technical data applicable to the actual supplied DragonEvent configuration.

Stage Lighting Bars

The 50mm main tubes provide a familiar mounting diameter for many compatible event-lighting clamps.

The truss can be used as part of suitable straight lighting structures for:

• PAR lights;

• LED fixtures;

• moving lights;

• effect lighting.

Fixture weight, clamp compatibility and the complete support arrangement still need to be considered.

Exhibition Displays

The ladder format can work well for:

• signage;

• booth frames;

• banner structures;

• product displays;

• temporary exhibition installations.

Its flatter profile can be visually lighter than square truss.

Studio & Venue Installations

For studios and small venues, bolt ladder truss can provide a relatively simple fixed or semi-permanent framework for compatible lighting and equipment.

The bolt connection may be particularly suitable where the structure does not need the same rapid pin-based assembly used by touring spigot systems.

Retail & Commercial Displays

The natural aluminum finish can remain exposed in:

• showrooms;

• retail displays;

• promotional installations;

• commercial interiors.

In these applications, the aluminum structure can become part of the visual design.

Rental Inventory

For rental companies, several standard lengths create more combinations.

For example:

0.5m + 1.0m = 1.5m

1.0m + 1.5m = 2.5m

1.0m + 2.0m = 3.0m

2.0m + 2.0m = 4.0m

This is often more useful than buying only the longest available sections.

How to Choose

Step 1 — Confirm You Need Bolt Ladder Truss

This product uses:

Bolts / Screws

for connecting straight sections.

If your existing system uses conical couplers and pins, choose a compatible spigot ladder truss instead.

Step 2 — Confirm the 300mm Profile

Nominal ladder-truss dimension:

300mm / approx. 11.8in

If you are expanding existing equipment, measure the actual structure rather than relying only on its product name.

Step 3 — Check the Main Tube Specification

Main tube:

50 × 3mm

This matters for both:

truss compatibility

and:

clamp selection.

Step 4 — Check the Bolt Connection

Before adding sections from another system, confirm:

• end connection geometry;

• bolt-hole position;

• bolt diameter;

• chord spacing.

“300mm bolt ladder truss” does not automatically mean two products will connect.

Step 5 — Choose the Required Lengths

For a:

4m lighting bar

you could use:

2m + 2m

for fewer joints.

A rental company may instead choose:

1m + 1.5m + 1.5m

because those sections provide more future combinations.

Step 6 — Consider Transportation

Longer sections provide fewer connections but need:

longer vehicles + longer storage space + larger shipping packages.

For small event companies, lengths between 1m and 2m are often useful inventory building blocks.

Minimum Practical Package

If you already own a compatible bolt ladder-truss system and need one extension:

**1 × Straight Ladder Truss Section

• Matching Bolt Hardware**

may be enough.

For a new lighting or display structure, you may also need:

**+ Matching Corners / Junctions

• Bases or Supports

• Lighting Clamps

• Required Fixture Safety Hardware**

Browse Truss & Rigging Accessories for related clamps and mounting components.

Bolt Ladder Truss vs Spigot Ladder Truss

You now have both systems, so keeping their buying logic separate is important.

Choose This 300mm Bolt Ladder Truss When:

you want:

50×3mm main tubes + bolted connections + lighting/display use

and your existing system already uses compatible bolt hardware.

Choose 290mm Spigot Flat Truss When:

your system uses:

conical couplers + pins + safety clips

and rapid modular assembly is important.

These are different connection systems and should not be treated as interchangeable.

Ladder Truss vs Triangle Truss

Choose Ladder Truss When:

your priority is:

slim profile + simple lighting bar + display or studio framework.

Choose Triangle Truss When:

you need:

three-chord geometry + more three-dimensional structure

for suitable event applications.

Ladder Truss vs Square Truss

Choose Ladder Truss When:

you want:

smaller profile + easier storage + simpler straight structure.

Choose Square Truss When:

you need:

four-chord geometry + mounting from multiple faces + larger event framework.

For other straight-section choices, browse Straight Truss.

Buying Mistakes to Avoid

1. Confusing 300mm Bolt Truss with 290mm Spigot Truss

The difference is not just 10mm.

The connection systems are completely different.

2. Buying by Length Only

A 2m section is only useful if it connects correctly to the rest of the system.

Compatibility comes first.

3. Ignoring Wall Thickness

This product uses:

50 × 3mm main tubes.

Do not treat it as identical to another ladder truss using 50 × 2mm tubes.

4. Assuming All 50mm Clamps Are Automatically Suitable

50mm confirms only one dimension.

The clamp also needs to suit:

• fixture weight;

• mounting orientation;

• actual application.

5. Buying Only 2.5m Sections

Long sections reduce joint count but can reduce rental flexibility.

A combination of shorter modules may be more useful over time.

6. Ordering Too Many Custom Lengths

Custom production is useful for recurring fixed requirements.

For general rental stock, standard modular lengths are usually easier to reuse and manage.

7. Using Another Product's Load Table

Do not copy load ratings from another manufacturer or another ladder-truss model.

Capacity depends on the actual product, span, supports, connections and loading configuration.

8. Treating Ladder Truss as a Complete Roof Solution

Although ladder truss may be used as one component within some roof arrangements, an outdoor roof with PVC cover introduces significant structural and wind considerations.

For event roofs, long spans or wind-exposed coverings, use project-specific structural evaluation rather than selecting straight ladder sections from a shopping page alone.

Necessary Related Products

Straight Truss

For other ladder, triangle and square truss sections:

Straight Truss

Truss & Rigging Accessories

For clamps, connection hardware and mounting accessories:

Truss & Rigging Accessories

What type of truss is this?

It is an aluminum two-chord ladder / flat truss using bolted connections.

What is the nominal truss size?

Approximately:

300mm / 11.8in.

What is the main tube specification?

50 × 3mm

approximately:

1.97in OD × 0.12in wall.

What is the brace specification?

25 × 2mm.

Is this a spigot truss?

No.

This version uses:

Bolt / Screw Connections.

What lengths are available?

Standard DragonEvent variants can include:

0.5m

1.0m

1.5m

2.0m

2.5m

Can I order another length?

Yes.

Other custom lengths can be produced according to the required finished dimension.

Can I connect it to my existing bolt ladder truss?

Possibly, but the end geometry and bolt dimensions must be confirmed first.

Can it be used for stage lighting?

Yes, for suitable lighting applications where the complete truss, clamps, fixtures and support arrangement are appropriate.

Can it be used for exhibitions?

Yes.

Exhibition and display structures are natural applications for the slim ladder-truss profile.

Is this the same as your 290mm spigot ladder truss?

No.

The 290mm product uses spigot / conical connections and 50×2mm main tubes.

This product uses bolt connections and 50×3mm main tubes.

Are bolts included?

Connection hardware should be confirmed according to the selected sales package.

What is the load capacity?

No universal load figure is published on this DragonEvent page.

Use verified technical data for the actual supplied configuration when structural loading needs to be checked.