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The pre-cast composite floor system produced by AERIAL PRECAST CONCRETE, LLC is outstanding in terms of strength, durability, speed of installation, as wellas cost.

Produced at our facility, Aerial™ floor units are fabricated in widths of up to 8 feet and lengths of up to 40 feet; are typically composed of 17″ deep steel bar joists embedded into 3″ concrete panels (depth of joists may vary), at 5,000psi and poured around embedded 6/6, i.e. 6″x6″ welded wire mesh, into slightly cambered molds. They are then transported to the site and placed at 3″ on top of the tie, bond or steel beams of the structure; precisely adjusted and welded together at the ends. The remaining joints are then grouted.

Terminology 2

The system is comprised of double, structural angles acting in tension with reinforcing bars used for diagonal web members acting in shear; all welded together and embedded with a longitudinal member into a reinforced concrete slab designed to meet compressive forces from negative moments. All materials meet and exceed standards and specifications for local and national codes.

The floors can be easily installed on steel and concrete structures and are designed to provide for precise adjustment and fine-tuning. As well, the steel trusses furnished by AERIAL PRECAST CONCRETE, LLC provide ample space for the easy installation of ventilation ducts, and electrical and plumbing lines. The depth selected in the design can conform to what is required by the designer to facilitate duct installation, as well as ceiling attachments, while openings in any slab can be pre-cast at our factory.

Technical Specifications

Maximum Duct Openings

The maximum duct openings are the spaces available for running ventilation systems and electrical and plumbing lines. They vary according to the joist depth.

Aerial™ Floor/Roof System Maximum Web Openings

Joist depth (d) Diameter (D) Square (S) Rectangle (R) Web (V)
9″ 4″ 3″ x 3″ 5″ x 3″ 13″
12″ 6″ 5″ x 5″ 6″ x 4″ 17″
17″ 10″ 8″ x 8″ 10″ x 6″ 24″
19″ 11″ 9″ x 9″ 11″ x 6″ 26″
21″ 13″ 10″ x 10″ 12″ x 6″ 29″
24″ 14″ 11″ x 11″ 12″ x 6″ 32″

Clear Span Table


Clear span is the maximum length of a concrete panel without any central support. It depends on the joist height and can reach about 40 feet. (See chart below)

Aerial™ Floor/Roof System Maximum Clear Span

Joist depth DL = 60 PSF
LL = 30 PSF
DL = 65 PSF
LL = 40 PSF
DL = 65 PSF
LL = 50 PSF
9″ 15′-0″ 15′-0″ 15′-0″
12″ 22′-0″ 22′-0″ 22′-0″
17″ 40′-0″ 38′-0″ 38′-0″
19″ 42′-0″ 40′-0″ 40′-0″
21″ 45′-0″ 42′-0″ 42′-0″
24″ 50′-0″ 43′-0″ 43′-0″


For Customers

  • No termites
  • No creaking
  • Exceptional sound proofing
  • Lower insurance rates due to 2 hour UL fire rating

For Architects

  • In-house engineering team
  • In-house drafting
  • CAD details supplied
  • Changes to existing drawings or new ones
  • Systems approved and installed throughout South Florida

For Builders

  • Cost-effective
  • Accelerated rate of construction (2nd floor in one day)
  • Requires only ½” drywall for finishing ceilings
  • Excellent resistance to Hurricanes

” The right way to build in Florida. “

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