Best Custom Foam Inserts for Cases: 6 Options for Different Applications

Not all equipment needs the same type of protection inside a case. A camera kit may need shaped cavities for individual components, while delicate instruments or electronic equipment may require closer-fitting support to prevent movement during transport. The right foam configuration can make a significant difference to how securely equipment is held and how easily it can be removed when needed.

Custom foam inserts can be designed around the size, shape, and requirements of the equipment they protect. Different foam types and configurations can provide anything from simple separation and cushioning to more precise support for fragile or specialist items.

The best custom foam inserts for cases depend on what you are protecting, how it will be used, and the level of support it needs. Here are six options suited to different applications.

What to Look for in a Foam Insert

The right foam insert needs to suit both the equipment and the way the case will be used. Before choosing an option, it is worth considering what the insert needs to achieve.

Several factors can affect the choice:

• Level of protection: Delicate or high-value equipment may need more precise support than robust items.
• Equipment layout: A case carrying one large item will have different requirements from one containing several tools and accessories.
• Access: Equipment that is frequently removed may benefit from a layout that makes individual items easy to reach.
• Organisation: Dedicated spaces can make it easier to see whether all equipment and accessories are present.
• Frequency of transport: Equipment that travels regularly may need more support against movement and vibration.
• Flexibility: If the contents are likely to change, an adaptable foam solution may be more practical than a fixed layout.

These considerations can help narrow down the most suitable type of insert before looking at the specific options available.

Foam insert	Best suited to	Main benefit
CNC-routed foam	Complex or valuable equipment	Precise fit
Layered foam	Items with different heights or depths	Flexible support
Compartmentalised foam	Multiple tools and components	Organisation
Shadow foam	Frequently used tool sets	Easy visual checks
Pick-and-pluck foam	Simpler or changing layouts	Flexibility
Custom case and foam combinations	Specialist equipment and demanding transport	Designed around the complete application

1. CNC-Routed Foam Inserts

Best for: complex, delicate, or high-value equipment

CNC-routed foam is one of the most precise ways to create a custom insert. The design can be created around the exact dimensions and shape of the equipment, with individual cavities cut for the items being carried.

This makes CNC foam particularly useful when equipment has an unusual shape, delicate areas, or several components that need to be kept separate. Different cavity depths and layouts can also be incorporated into the same insert.

Precision around complex shapes

A precisely designed cavity helps prevent equipment from shifting inside the case. It can also provide support around areas that need additional protection.

For cases containing multiple components, the layout can be designed to give each item a defined position. This can make it easier to check that everything is present before and after transport.

Compared with more flexible options such as pick-and-pluck foam, CNC routing provides a more exact fit. It is therefore particularly suitable for valuable equipment where a fixed layout and precise support are more important than being able to change the insert later.

CNC routing also allows repeatable production. Once the digital design has been created, matching inserts can be manufactured again when additional cases or replacement inserts are required.

2. Layered Foam Inserts

Best for: equipment with different heights, depths, or levels of support

Not every item needs a single flat layer of foam. Layered inserts can combine different depths to create cavities suited to the equipment being protected.

This approach can be useful where an item has a complex shape or where different parts of the equipment need different levels of support. Deeper sections can accommodate larger components, while shallower areas can be used for smaller accessories.

Creating support at different depths

A layered design can make better use of the available space inside a case. Rather than leaving unused areas around the equipment, the insert can be built around the shape and height of the contents.

It can also provide a practical way to organise equipment that includes a mixture of larger units, smaller tools, cables, and accessories. This makes layered foam useful when a case needs to accommodate items that do not all require the same amount of space.

Compared with a single-depth foam layout, layered foam gives greater control over how much material surrounds different parts of the equipment. It can therefore be a better option when the contents have varying heights or need different levels of cushioning.

3. Compartmentalised Foam Inserts

Best for: cases containing multiple tools, components, or accessories

When a case contains several items, simply cushioning the equipment may not be enough. Separate compartments can help prevent individual components from moving into each other during transport.

A custom layout can provide dedicated spaces for the main equipment alongside smaller accessories, tools, cables, or replacement parts.

Keeping equipment organised

A defined layout makes it easier to see where each item belongs. It can also make packing and unpacking more consistent, particularly when the same equipment needs to be transported regularly.

This can be useful for engineers, technicians, AV professionals, and other users who need to carry a complete set of equipment between locations. Each item has a defined position, making it easier to check the contents before transport or after use.

Compared with a more open foam layout, compartmentalised inserts place greater emphasis on organisation as well as protection. For frequently used cases, the foam can become part of the workflow rather than simply another layer of packaging.

4. Shadow Foam Inserts

Best for: tools and equipment that need to be checked at a glance

Shadow foam uses contrasting layers to make the position of equipment visible. When a tool is removed, the exposed layer creates a clear indication that something is missing.

This makes it particularly useful for cases containing sets of tools or equipment that need to be checked before leaving a site or after returning to a workshop.

Making missing tools easier to spot

A clearly defined layout can reduce the need to check each item individually. If an empty space is visible, it is immediately apparent that something needs to be accounted for.

Shadow foam can therefore provide both protection and organisation. It is particularly suited to equipment that is regularly removed and replaced rather than remaining permanently packed.

Its main advantage over a standard compartmentalised insert is the visual indication when an item is missing. For equipment that requires highly precise cavities or has an unusual shape, however, CNC-routed foam may provide a better fit.

5. Pick-and-Pluck Foam

Best for: simpler layouts or equipment that may change over time

Pick-and-pluck foam consists of pre-scored sections that can be removed to create a cavity around an item. It offers a straightforward way to adapt the internal space of a case without having an insert manufactured to an exact digital design.

This can work well for simpler equipment and applications where the contents may change over time.

When flexibility matters more than precision

The main advantage is flexibility. Sections can be removed to accommodate different equipment without creating a completely new insert.

This makes pick-and-pluck foam a practical option when the case contents are not fixed or when the user wants to make adjustments without commissioning a new insert. It can therefore be more suitable than a fixed, precisely machined layout when flexibility is a priority.

However, this approach has limitations. It may not provide the same level of precision as a CNC-routed insert, particularly for equipment with unusual shapes or areas that require specific support.

6. Custom Case and Foam Combinations

Best for: specialist equipment and demanding transport conditions

Some equipment does not fit neatly into a standard case layout. The case, foam, equipment, and accessories may all need to be considered together to create a practical protective system.

A custom foam insert can be designed around the actual contents and the internal dimensions of the case. This allows the layout to account for unusual shapes, multiple components, access requirements, and the way the case will be handled.

Designing the case and insert together

The advantage of a complete approach is that the foam does not have to work in isolation. The case and internal protection can be considered together to create a solution suited to the equipment.

This can be particularly useful when standard cases or off-the-shelf foam layouts cannot accommodate the equipment properly. It also allows storage, transport, access, and the arrangement of multiple components to be addressed as part of one design.

At Trojan Crates, custom CNC foam inserts can be designed around the size, shape, and requirements of the equipment. Inserts can be manufactured for Peli cases, flight and transit cases, aluminium cases, crates, and other bespoke packaging systems.

Which Foam Insert Is Best for Your Case?

There is no single foam insert that is right for every case. The best option depends on the equipment, the way it is transported, and how often it needs to be accessed.

CNC-routed foam is a strong choice for complex or valuable equipment where a precise fit is important. Layered and compartmentalised inserts can suit equipment with multiple components or different levels of support, while shadow foam is useful where tools need to be identified quickly.

Pick-and-pluck foam provides more flexibility for simpler or changing layouts. For specialist equipment or demanding transport conditions, a complete case and foam design may provide the most suitable level of protection.

Designing a Custom Foam Insert

Once the right type of insert has been selected, the design needs to be matched to the equipment and case. Small details can affect how well the foam supports and protects its contents.

Choosing between precision and flexibility

CNC-routed foam provides precisely shaped cavities designed around specific equipment. Pick-and-pluck foam is more adaptable when the contents may change, although it does not provide the same level of precision.

The choice comes down to how closely the insert needs to match the equipment and whether the layout is likely to change.

Selecting the right foam thickness and density

There is no single foam thickness that works for every application. The appropriate thickness depends on the size, weight, shape, and fragility of the equipment, as well as the amount of protection required.

Foam density also affects how the insert supports and cushions its contents, so both factors need to be considered when designing the insert.

Matching the insert to the case

The internal dimensions of the case are an important part of the design. An insert needs to fit securely without affecting the case’s ability to close properly or compromising the available protection.

Foam can be designed for different protective cases, including Peli cases, flight cases, aluminium cases, and other custom packaging solutions.

Designing around the equipment

The final layout should account for the details of the equipment rather than simply filling the available space. Handles, connectors, controls, cables, and accessories can all affect the position and shape of individual cavities.

Taking these details into account can make the insert more practical to use while providing appropriate support for the equipment.

Choosing the Right Foam Protection

There is no single foam insert that is right for every case. The best solution depends on the equipment being protected, how it is transported, and how the case will be used.

For straightforward or changing requirements, a flexible foam option may be sufficient. More specialised equipment may benefit from a precisely machined insert designed around its shape, while demanding applications may require the case and internal protection to be developed as one solution.

Trojan Crates designs and manufactures custom CNC foam inserts around individual equipment and packaging requirements. Whether the insert is being fitted into a Peli case, flight case, aluminium case, or bespoke packaging solution, the aim is to provide practical protection throughout storage, handling, and transport.

If you need custom foam inserts designed around your equipment, contact Trojan Crates to discuss your requirements.