Double-deck exhibit delivery means building a two-story structure inside someone else's building, and the building's own limits decide what that structure can be. A tall aircraft hangar like Barker Hangar gives a stamped design room to breathe; a hotel ballroom with a dropped ceiling and chandeliers does not, and the same footprint that clears one venue can get flagged at the other.
We run stamped structural drawings, venue and fire-marshal sign-off, and the crew sequence for the second level as one package, because a design that isn't checked against the actual room ends up redrawn on-site, usually during move-in.
Execution priorities
- Clear height at the exhibit hall, the hangar, or the ballroom sets the ceiling on how tall the second level can go.
- Stair count, railing height, and egress width follow the local fire code the venue enforces, not a generic exhibit-industry number.
- Point loads on the second deck have to clear what the venue's floor, or the hangar apron, is rated to hold.
- Sign-off timing differs: a convention center wants the stamped set weeks out, a hotel event team often reviews it closer to the date.
Why the same design doesn't travel between venues
A double-deck exhibit built for a wide-open hall at the Los Angeles Convention Center or Long Beach Convention Center assumes a clear span overhead and a floor rated for heavy point loads. Move that same structure into a hotel ballroom at the Fairmont Miramar or Shutters on the Beach and the assumptions change: chandeliers and a coffered ceiling cut the available height, and the ballroom floor was built for banquet tables, not a rigged second story.
Barker Hangar, the event space at Santa Monica Airport, sits closer to the convention-hall end of that range. Its aircraft-hangar ceiling gives a two-story build the clearance it needs, which is part of why product launches and large activations gravitate there instead of a standard hotel function room.
The stair and railing code doesn't bend for the schedule
Stair rise, tread depth, railing height, and a second, marked path down are set by the fire code the venue's jurisdiction enforces. That code doesn't move because the load-in day is tight, and a stair that fails walkthrough gets rebuilt on the spot, which is the single most common reason a double-deck program loses hours during install.
We size the stair and egress package to the actual code before fabrication starts, and we carry the fire-marshal walkthrough as a scheduled step, not a hope that it goes smoothly.
Sequencing the crew so the second level doesn't stall the floor
A two-story build runs a different crew order than a single-level booth: structure first, then the deck, then rail and stair, then finish carpentry, then graphics, with each trade waiting on the one before it. Compress that order to save a day and the finish crew ends up working around wet paint or an unrailed edge.
For a Santa Monica-based program, that sequence gets planned around the specific venue's dock access and load-in window, whether that's a hangar apron at Barker Hangar or a loading corridor timed around Fairmont Miramar's own event calendar.
Documentation and handoff between crews
The stamped set, the fire-marshal sign-off, and the load-in sequence all get logged in one file that travels with the job, not left in a single lead's notes. If a crew lead has to hand the job to someone else mid-week, the incoming lead should be able to pick up the plan from that file without re-verifying decisions that were already locked.
For a repeat client running double-deck programs across more than one venue in a season, that same documentation becomes the reference for the next booking, since a design that worked at Barker Hangar still needs its numbers rechecked, but the process for checking them doesn't have to be reinvented each time.
Questions before the design is locked
What decides the maximum height of a double-deck exhibit?
The venue's clear height, whichever is lower between the structural rating and the physical ceiling, whether that's a hangar roof or a ballroom's chandeliers.
Does a hotel venue require the same stamped drawings as a convention center?
Yes. The stair, rail, and structural package needs an engineer's stamp regardless of venue; what changes is how far ahead the venue wants to see it.
Can the same double-deck structure be reused at a different venue?
Sometimes, but the height, load, and egress numbers have to be rechecked against the new room before it ships; a design that cleared Barker Hangar doesn't automatically clear a hotel ballroom.
Who signs off on the second level before it opens to traffic?
The venue's fire marshal or building official does the final walkthrough; that inspection is scheduled as part of the install plan, not treated as a formality.
Does the same crew sequence apply at every venue?
The order, structure, deck, rail, finish, graphics, stays the same; what changes is the load-in window and dock access each specific venue allows.