The varia system panels utilizing natural products as a decorative interlayer may change in appearance over time. Natural materials are also subject to inherent inconsistency in color, texture and shape. Interlayers in the standard Grove pattern fade in density at stop roughly halfway in the panel (48" of coverage for a 48"x96", and 60" of coverage for a 48"x120"). In the 4' direction, Amazon Grove can only be made in gauges 3/8" and below.