What Is Needed for Custom Case Design?

Custom case design is an engineered manufacturing program — not a one-off build. When an OEM, product team, procurement manager, or engineer engages a custom case manufacturer, they're initiating a repeatable production process that must deliver consistent, quality-controlled cases across every unit in a run: whether that's 50, 200, or 500.

This page is for buyers who know they need custom equipment cases but aren't sure what information to bring to the first conversation. The more complete the inputs at intake, the faster Platt Cases can move from inquiry to design concept to approved prototype to production.

Quick Answer

Here is the minimum information needed to begin a productive custom case design conversation:

The primary use scenario determines every downstream design decision. A case engineered for laboratory bench storage has fundamentally different requirements than one built for common-carrier freight or daily field deployment by non-technical personnel. Getting this wrong at intake means redesign after prototype.

Handling risks to identify upfront: drop and impact, vibration and shock, compression from stacking or freight, temperature and moisture exposure, and dust or contaminant ingress.

User workflow questions to answer: How often is the case opened and closed? Who opens it — a trained technician or general field personnel? Does it need to be re-packed in the field, or is it sealed at the factory and opened once at final delivery?

Shipping vs. Travel vs. Field Use: How Requirements Change

Each primary use scenario drives different material, construction, and foam decisions. Identifying the right scenario at the start of a custom case design program prevents costly revisions after prototype approval.

Accurate custom case design depends on knowing exactly what goes inside — the primary equipment and everything that ships with it. Incomplete item lists are the most common cause of redesigns after a first article is already approved and drawings are done.

• Primary equipment: model name, dimensions, weight
• All accessories packed with the unit — cables, power supplies, adapters, chargers, and remote controls
• Fragility points: screens, calibrated connectors, protruding knobs, lenses, antennas, fiber optic ports
• Moving parts or hinged components that must not be compressed in storage or transport
• Critical surfaces that cannot contact foam — polished optics, coated housings, calibrated interfaces
• Operational constraints: must remain fully assembled, must be stored upright, must stay powered off during shipping

Measurements and Fit Data to Provide

When CAD is not available, dimensional measurements are the starting point for custom case design. Provide all of the following:

Platt Cases accepts four types of input for custom case and foam design. The method a buyer provides directly affects quoting turnaround time, first-article accuracy, and how many revision cycles are needed before production approval.

Protection requirements translate directly into foam material and density selection, case shell specification, and hardware choices. If you have these specs, bring them — if not, Platt Cases can help you work through what matters for your application. Defining protection requirements early prevents costly revisions, but the design conversation is a good place to start identifying them.

Case platform selection is driven by the use scenario, protection requirements, weight targets, and size constraints. Three primary decisions apply to all custom equipment case programs:

• Hard vs. soft vs. hybrid: Hard cases provide maximum impact and compression protection. Soft cases reduce weight and cost for lower-risk applications. Hybrid builds combine foam-protected hard shells with sewn pockets or accessory pouches
• Portability and handling: Single-person carry, wheeled transport, pallet-ready stacking, or forklift-accessible — each requires different hardware and structural wall specifications
• Security: Padlockable hasps, keyed locks, TSA-accessible locks for air travel programs

Interior Layout Needs

Interior layout drives foam design more than any other single input. Define the following before the custom case design begins:

• Single device vs. multi-component kit: How many items share the case? Are all accessories always packed together?
• Access pattern: Quick-access lid layout — everything visible and removable in one motion — vs. layered tray system for maximum packing density
• Modular requirements: lift-out tray inserts, document pockets, spare parts compartments, tool holders, accessory pouches
• Re-pack complexity: Can field personnel re-pack correctly without training, or does foam design need to guide re-packing with clearly shaped pockets and sequenced layers?

Foam is where custom case design succeeds or fails at the equipment protection level. Platt Cases manufactures custom foam inserts using waterjet cutting and die cutting — producing repeatable inserts that hold consistent dimensional tolerances across every unit in a production run.

Foam design priorities to define upfront:

• Protection level vs. weight vs. per-unit cost: These create real tradeoffs in density and material selection — identify the primary driver
• Pocket design details: finger-pull channels, cable routing paths, label recesses, multi-layer insert strategy
• Serviceability: replaceable insert layers for high-wear pockets, spare parts access without full unpack, field-swap capability for consumable foam sections

Foam Material Selection Guidance

See also: Custom Foam Inserts | Custom Foam Overlay

Designing for Repeatable Manufacturing Runs

A foam design that fits correctly in a prototype must produce the same result across every unit in a production run. Designing for repeatability means:

• Machine-cut foam inserts — every unit in a production run comes out exactly the same
• Revision control: foam design files are version-controlled and archived at Platt Cases — reorders match original approved specifications without requiring a new first-article cycle

For OEM programs and private-label production, branding and identification requirements must be defined before prototype — not after. Exterior branding changes made after drawings and specs are done add cost and lead time that a complete intake brief prevents entirely.

Quantity and timeline are not logistics questions — they drive material selection, tooling decisions, and unit economics from the first design conversation. Provide these inputs as early as possible:

• Pilot run vs. full production volume: Platt Cases' mid-volume sweet spot is 10 to 100+ units per production run
• Needed-by date: prototype approval milestone, first production delivery date, phased rollout milestones
• Reorder cadence: programs with predictable reorder schedules can be planned with archived tooling and pre-purchased raw materials, reducing lead time on subsequent runs
• Budget guardrails: identifying cost constraints at intake enables smarter material and design tradeoffs — rather than discovering them after quoting is complete

Tooling and Manufacturing Method Impacts

Manufacturing method determines schedule flexibility, per-unit cost at volume, and how easily the design can be revised after production begins. Match the method to the program requirements, not just to the cost of the first unit.

Common Mistakes That Slow Down Custom Case Design

How Platt Cases Uses Your Inputs

Once requirements are submitted, Platt Cases moves through a structured program sequence with defined buyer approval points at each stage. No stage advances without a written sign-off from the buyer.

Talk to a Custom Case Manufacturer About Your Program

Platt Cases designs and manufactures custom equipment cases for OEM product teams, engineers, and procurement managers who need 10 to 100+ units delivered to specification and built to repeat. The fastest path to a quote is the most complete set of inputs: CAD files, dimensional drawings, or a physical sample of the equipment.

If the program is still being scoped, a design consultation is the right first step. Bring the equipment, the use scenario, and a quantity target — Platt Cases will handle the rest.

Request a Custom Case Design Consultation