Pallet racking in Macungie, PA.

Macungie is best known industrially for heavy-truck manufacturing: Mack Trucks' Lehigh Valley Operations plant, where the company's Class 8 trucks are assembled, carries a Macungie mailing address but physically sits in Lower Macungie Township — a distinction that matters the moment you need a permit, because the borough and the township are separate code jurisdictions. The plant anchors a supplier and logistics base across the Route 100 corridor that runs on sequenced, just-in-time delivery, which drives a very specific kind of racking demand: flow lanes and carton flow feeding line-side, cantilever for long steel and axle stock, and selective built around a build sequence rather than pure storage density. Borough industrial stock is older and smaller, generally 18-to-26-foot clear, while newer Lower Macungie development along Route 10000 pushes 28-to-36-foot. Confirm the parcel jurisdiction first: Macungie Borough and Lower Macungie Township each administer the Pennsylvania Uniform Construction Code independently.

Across the Route 100 heavy-truck supplier corridor, permits route through the Macungie Borough or Lower Macungie Township code office, depending on the parcel with plan reviews typically running two to four weeks. Sequenced just-in-time supply is laid out to the build sequence and takt time, not to maximum pallet count.