Padding is the difference between a case that merely holds a guitar and one that protects it. This guide explains how case padding works, what thickness and density you actually need, and how to spec it when ordering custom cases.
What Padding Does
Case padding absorbs impact energy and spreads it across the instrument. The two variables that matter are thickness (how far the instrument sits from the shell) and density (how much energy the foam absorbs before bottoming out).
Foam Types Used in Guitar Cases
| Foam / Filler | Character | Common Use |
|---|---|---|
| EVA foam | Rigid, closed-cell, impact-resistant | Hard cases, semi-rigid shells, pedalboard cases |
| PU foam | Soft, conforming | Interior cradles, soft gig bags |
| Memory foam | Slow-recovery, contouring | Neck supports, premium padding |
| Multi-layer foam + air cell | Progressive absorption | Premium gig bags, touring bags |
Thickness Guidelines
- 10–15 mm: basic protection for home and light transport.
- 15–20 mm: solid daily-carry protection for most gig bags.
- 20–30 mm +: touring-grade protection, especially at ends and corners.
Where Padding Matters Most
- Headstock and neck area: the most fragile and expensive region — needs its own support block.
- Body corners: first contact point when the case is set down or dropped.
- Bottom panel: carries the whole instrument weight when standing.
- Bridge and tuner zones: high points that dig into soft padding over time.
Specifying Padding for OEM Orders
When ordering custom gig bags or cases, tell your factory the instrument type, transport method and target price, and they will recommend the padding spec. A touring-grade bag adds 3–5 mm of foam and a neck cradle; a budget student bag trades some thickness for price. Good factories also offer memory-foam neck supports and reinforced corner panels as options. Talk to our OEM/ODM team about custom padding specs, or see the gig bag range for reference.