Any material used on top and bottom of an innerspring unit to prevent the upholstery layers from cupping down into the coils. Some common types are: a fiber pad, non-woven fabric, netting, wire mesh or foam pad.
Any material used on top and bottom of an innerspring unit to prevent the upholstery layers from cupping down into the coils. Some common types are: a fiber pad, non-woven fabric, netting, wire mesh or foam pad.