Structural steel screen walls and enclosures for industrial and commercial sites. Custom fabricated for any enclosure design. Engineered to ASCE 7-22 for your site.
Alpine Enclosure Systems is a division of Alpine International Trading Co. We design and supply structural steel enclosures and screen walls for industrial and commercial sites, from trash and tire storage enclosures to mechanical, generator and utility screening. Our product line is Alpine Citadel, and every project is engineered for its own site to ASCE 7-22.
Two things: structural steel and engineering on every project. Many enclosure products are sold as catalog panels in aluminum, vinyl, plastic or light-gauge metal, with engineering left to the buyer. Alpine delivers the enclosure and its engineering package together: designed to ASCE 7-22, with sealed calculations in all 50 states and an engineering package in under one week.

Alpine Citadel enclosure run, 8 ft, solid slats on structural steel posts.
Alpine Citadel is our structural steel enclosure system: 4 in square structural steel posts and 8 in round gate posts on ¾ in hot-dip galvanized base plates, solid steel slats that slide in captive for a 100% opaque face, and heavy-duty double-leaf gates. Standard heights are 6, 7 and 8 ft; custom, 5 to 10 ft.
We start from your drawing. Alpine solves the layout to the architect's dimensions, applies the site's wind speed, exposure and risk category, and delivers the engineering package in under one week. The submittal package follows for the architect and building department, and each enclosure then ships as one kit, tagged by bay, ready to install in typically 1–2 days.
Alpine has 70+ locations installed, including 60+ for a multi-state tire and automotive service brand, its largest program to date. Each location received its own layout and engineering, and each enclosure shipped as one kit. We describe programs without naming clients, and we publish only project figures we can support.

Posts set on base plates on day one; slats and gates on day two.
We publish what we can back up. Alpine Citadel is a structural steel screening and enclosure system. We do not claim approvals or certifications that have not been issued, and a slatted screen is not a noise barrier or a fire barrier. Where a code names masonry, we provide an alternate-materials submittal instead of assuming approval.
Alpine Enclosure Systems supplies Alpine Citadel, a structural steel enclosure and screen wall system for industrial and commercial sites, custom fabricated for any enclosure design and engineered to ASCE 7-22 for each site.
Alpine Enclosure Systems is a division of Alpine International Trading Co.