Monumental Stair Engineering

Feature stairs should look effortless and feel rock-solid. Domus partners with architects, fabricators, and builders to engineer elegant, economical stairs that meet deflection, vibration, and code requirements—without compromising the design.

Who we support

  • Architects — early span/geometry validation, details that prevent RFIs.

  • Fabricators — connection rationalization, plate sizes, shop review.

  • Builders/Owners — constructible sequencing, fewer surprises, faster install.

What we deliver

  • Framing schemes (single/double plate stringers, HSS box stringers, folded plate, helical).

  • Serviceability checks: vertical deflection (e.g., L/600+ at nosing), dynamic response/vibration comfort, lateral stability of stringers/guards.

  • Guard/handrail attachments; glass/wood/tread support details with fasteners/anchors specified.

  • Connection design (hidden bolted, field-welded where practical), fit-up tolerances, shim/pack plans.

  • Load path + supports (discrete columns, concealed walls/cores, slab embeds).

  • Coordination sets: Revit models, 2D sheets, shop review, RFIs.

Typical engagement models

  • Design-Assist: concept through DD/early CD; option comparison (stringer types, support strategy, vibration control).

  • Engineer of Record (EOR): full calcs, sealed drawings, and coordination through permit and construction.

  • Peer Review / Value Engineering: second set of eyes to stiffen, simplify, or reduce steel/field labor.