STANDARD

Little to no load, e.g. separation of flowerbeds along footpaths

Components:

Posts 4" x 4" x 4' 1"

Cross bars 31/8" x 31/8" x 9' 10"

CLASSIC

Medium load, e.g. parking lots or grassed areas in need of pedestrian routing

Components:

Posts 4" x 4" x 4' 1"

Cross bars 4" x 4" x 9' 10"

STRONG

High load, e.g. parking lots, parks and paths with constant or daily use

Components:

Posts 4" x 5½" x 4' 11"

Cross bars 4" x 4" x 9' 10"