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Platinum Structural Steel — structural steel and steel beam installation

Service area

Structural steel in Boston, Massachusetts

Downtown, Back Bay, South Boston, Dorchester and everything in between.

Boston is four or five different steel markets stacked in one city. A tower fit-out downtown, a brownstone lintel job in the Back Bay, a triple-decker beam replacement in Dorchester and a warehouse conversion in South Boston have almost nothing in common except the building department.

We work across all of them, and the plan changes completely depending on which one you have.

Permitting and access

Boston's Inspectional Services Department requires a building permit for any structural work that changes a load path, with stamped drawings from a Massachusetts registered professional engineer, and a structural inspection before close-in. Downtown picks generally add a street occupancy permit through the Boston Transportation Department and a police detail. Landmark districts add commission review, which has its own calendar. We plan mobilization around those approvals rather than assuming them.

Typical local scopes

  • Basement girder and lally column replacement in triple-deckers
  • Corroded lintel replacement on brownstone and brick facades
  • Load-bearing wall removal in condo and single-family renovations
  • Fit-out steel and rooftop dunnage in occupied commercial buildings
  • New openings, stairs and elevator framing in conversion projects

Local conditions

Building stock we encounter

Brownstone and row house

Back Bay, Beacon Hill and the South End are masonry bearing walls with wood joists and steel lintels that are now well past their service life. Work is hand-rigged, sectioned and field-welded, with commission review on anything visible.

Triple-decker

Dorchester, Roxbury, Jamaica Plain and Hyde Park run on three-family wood frames over a basement girder carried by lally columns. Rusted columns and sagging basement girders are the most common call we get from these neighborhoods.

Downtown and Seaport commercial

Fit-out steel, rooftop dunnage and structural alterations inside occupied buildings, where the loading dock schedule and the freight elevator dictate the whole sequence.

Industrial and conversion

South Boston and Charlestown warehouse and pier buildings being converted, with new floor openings, elevators and reinforcement for changed use.

Send us your drawings. Get a real number.

Structural drawings, photos of the condition, or just an address and a schedule window. We will tell you what we can do and when.

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