What it is
The surface of egg-crate foam is shaped into ridges and hollows, which gives it its name. The shape lets the foam compress differently across the surface and allows some air movement. It is lighter and cheaper than a solid slab of the same size.
How it is used
- As a topper over a firmer base, adding a softer first layer.
- As a base layer in value lines, covered by a fiber layer.
- As a replacement insert sold separately for a cover that already exists.
Because it is an economical foam, it is often used in entry price points. State this plainly rather than presenting it as a premium material.
What to know before you quote it
The ridges flatten with use, and thin egg-crate foam may lose its shape sooner than a solid slab. A thicker layer, or a layer paired with a solid base, holds up better. Ask the supplier for the thickness measured at the peak and at the valley of the pattern.
Inserts must be cut to the cover size with allowance for the cover fabric. An insert that is slightly large makes the cover tight, and one that is too small leaves empty corners.
Specification fields
| Field | What to ask |
|---|---|
| Thickness (peak and valley) | Both values, because the surface is uneven. |
| Density | State the value and unit, and compare quotes in the same unit. |
| Cut size | Match to cover size with the allowance agreed in writing. |
| Wrapping | Ask whether the foam arrives wrapped in a liner, which protects it and helps the cover slide on. |
| Odor and dust | Check on arrival; foam dust can be a nuisance when the carton is opened. |
Related product line: Orthopedic dog beds. Quotes and specifications are confirmed in writing for each order.