Corners

Corners for Case Construction at LTT – Your Specialist for Event Technology

Looking for robust corners to finish and protect your flight cases? At LTT you will find corners for case construction in a wide range of sizes, shapes and finishes — from compact ball corners to heavy-duty stacking corners.

Whether you are building a touring case for a lighting rig, a transport case for audio gear or a bespoke enclosure for a mixing desk, the right corner hardware keeps your build stable, stackable and impact-resistant. As your specialist for event technology, we combine 25 years of experience with our own manufacturing in Germany.

Browse the range, compare types and let us help you find the optimal solution for your next case build.

What Are Corners and What Are They Called? Fundamentals

In everyday language, a corner (German: Ecke, plural Ecken) is the point where lines or edges meet. In geometry, a corner — also called a vertex or Eckpunkt — is a specially distinguished point on the boundary of a shape or body. On a flat, two-dimensional shape, a corner appears wherever two sides meet: a rectangle has four corners, a triangle has three, and a circle has none.

In case construction, however, the term "corner" refers to something very practical: a metal fitting mounted onto the outer corners of a flight case or transport case. These case corners protect the edges from impact, reinforce the box and allow multiple cases to be stacked securely.

Corners in the case-building context

Unlike the purely geometric meaning, a case corner is a physical hardware component. It is fastened with rivets or screws to the joints where two or three case panels meet — mirroring the geometric idea that a corner is where edges come together. This dual meaning is why the same word applies to both the vertex of a cube (a body has eight corners where three edges meet) and to the protective metal part you buy for your build.

At LTT, when we talk about corners, we mean the durable steel and aluminium fittings that turn a raw case shell into a road-ready, professional enclosure.

Types and Variants of Case Corners: Ball, Stacking and Medium Corners

Case corners come in several distinct types, each designed for a specific role in the build. Choosing the right variant is the foundation of a durable case.

Ball corners

Ball corners are the classic, rounded corner fitting. They protect the outer corners of a case from knocks and drops and give the build a clean, professional look. Ball corners are ideal for lightweight to medium transport cases and are the most common choice for general case construction.

Stacking corners

Stacking corners (also called nesting or dish corners) are designed in pairs: a male and a female profile that interlock. When you place one case on top of another, the corners engage and prevent the stack from sliding. Stacking corners are essential for touring cases and warehouse storage where cases are stacked several high.

Medium and large corners

Corners are also graded by size. Medium corners suit standard cases, while large or heavy-duty corners are used on big touring cases and enclosures carrying substantial loads. The larger the footprint, the more surface area the corner covers and the more impact energy it distributes.

Special and combination corners

Some corners combine functions — for example a stacking corner with an integrated ball profile, or corners with wider flanges for extra reinforcement. Choose the variant that matches the case size, weight and how often it will be transported. If you are unsure which type fits your build, our team is happy to advise.

Sizes, Materials and Finishes Explained – Technical Buying Criteria

The material and finish of a corner determine its strength, weight and appearance. As a manufacturer of steel and aluminium parts, LTT understands exactly which material suits which application.

Steel corners

Steel corners offer the highest load capacity and the best impact resistance. They are the standard for heavy touring cases and stacking applications where robustness is critical. Steel is heavier than aluminium but far more resistant to deformation under load.

Aluminium corners

Aluminium corners are lighter and naturally corrosion-resistant, making them a good choice for cases where weight matters — for example fly cases that travel by air. Aluminium handles moderate loads well while keeping the overall case weight down.

Finishes and coatings

Most professional corners are zinc-plated or powder-coated. Powder-coated finishes — usually in black — resist scratches, match standard black case panels and protect the metal from corrosion. Bright zinc plating offers solid corrosion protection at a lower cost.

Sizes and material thickness

Corners are specified by their footprint (the length of each flange) and by sheet thickness in millimetres. As a rule of thumb:

• Small / medium corners: thinner sheet, for light cases and studio racks
• Large / heavy-duty corners: thicker sheet, for touring cases and heavy loads

Match the corner size to your panel thickness and to the number of rivets you can fit — a larger flange with more fixing points spreads the load and increases durability.

Comparison: Ball Corner vs Stacking Corner vs Steel Corner

The table below shows the key differences between the most common corner types so you can pick the right one for your case build at a glance.

In practice, many professional builds combine types: ball corners on lighter panels and stacking corners on the top and bottom faces where cases meet. For extremely heavy loads, choose thicker steel corners with more rivets per fitting.

Load Capacity, Durability and Stacking

For professional event-technology buyers, the load capacity and durability of case corners are just as important as looks. Corners carry the mechanical stress of transport, stacking and repeated handling on the road.

What determines load capacity

The load a corner can bear depends on three factors: the material (steel outperforms aluminium), the sheet thickness in millimetres, and the number and quality of the rivets fixing it to the panel. A corner is only as strong as its weakest fixing point — under-riveting is the most common cause of failure.

Stacking loads

When cases are stacked several high in a truck or warehouse, the bottom case carries the combined weight of everything above it. Stacking corners transfer this load through the corner profiles rather than the case walls, protecting the panels. For heavy stacks, always use dedicated steel stacking corners and ensure the top and bottom corners align precisely.

Durability on tour

Touring cases endure constant loading, unloading and vibration. Powder-coated steel corners resist corrosion and abrasion, extending service life significantly. Inspect corners regularly for loose rivets and deformation — replacing a worn corner early prevents damage to the whole case.

Buying Guide: Choosing the Right Corner for Your Case Build

This buying guide walks you through the key decisions so you select corners that match your project and budget.

1. Define the use scenario

Start with how the case will be used. A studio rack that rarely moves needs only basic edge protection, whereas a touring case that is stacked and shipped weekly demands heavy-duty stacking corners.

2. Match load to material

For light and medium loads, aluminium or thinner steel corners are sufficient. For heavy gear and tall stacks, choose thicker steel corners. Never under-specify — the corner is a structural component, not just decoration.

3. Check compatibility with your profiles

Corners must fit the case profile and panel thickness you are using. Measure the flange length and confirm it aligns with your profile geometry before ordering.

4. Plan your fixings

Decide how many rivets each corner needs. More fixing points mean higher load capacity and better durability. Order matching rivets in the same batch.

5. Consider finish and appearance

Black powder-coated corners are the professional standard and match most case panels. Choose bright zinc where cost matters more than looks.

Flight cases vs standard transport cases

Professional flight cases for touring need stacking corners and reinforced steel fittings, while standard transport cases for occasional use can rely on simple ball corners. Deciding this early keeps your build both robust and cost-effective.

Matching Corners with Profiles, Rivets and Case Hardware – Accessories

Corners never work alone — they are one piece of a complete case-hardware system. To achieve beautiful, robust results, match your corners with the right accessories.

Case profiles

Corners sit at the junctions where case profiles meet. The corner geometry must correspond to your aluminium profile so the panels lock together cleanly. Always plan corners and profiles together.

Rivets and fixings

Rivets are the most important fastener for mounting corners. Blind rivets in matching diameter and length give a fast, secure hold. Order enough rivets for every fixing hole in your corners — running short mid-build is a common pitfall.

Complementary hardware

A finished case also needs butterfly latches, handles, hinges and edge protection. All of these fittings work alongside your corners to create a road-ready enclosure. Selecting hardware from a consistent system ensures every part fits and looks uniform.

Care and maintenance

Corners need little care, but a quick maintenance routine extends their life: wipe off dirt and moisture after touring, check rivets for tightness, and touch up scratched powder coating to prevent corrosion. Replacing a single worn corner is far cheaper than rebuilding a case.

LTT – Your Specialist for Event Technology

As your specialist for event technology, LTT is more than a retailer — we are a manufacturer with our own production in Germany and 25 years of experience in the industry. Our corners for case construction are built to withstand the demands of touring, studio and transport work.

When you order corners and case hardware from us, you benefit from fast dispatch from Bocholt, Germany, free shipping from €69 and our 3-year warranty. Reseller and wholesale customers profit from dedicated trade conditions and our international dealer network.

Complete your build with matching case profiles, rivets, latches and handles from our Casebau range, and combine your finished cases with our lighting, audio and truss systems to equip your event from a single reliable partner. If you are unsure which corner fits your project, get in touch — we are happy to help you find the optimal solution and achieve impressive results.

FAQ – Questions & Answers