Structural & HVAC
4 items
Standardized structural engineering materials, ASTM reinforcing steel bar (rebar) sizes, round spiral and rectangular HVAC duct dimensions, concrete anchor pullout ratings, and AISC steel profile shapes.
Items (4)
CompareConcrete Anchors
9 specs
Heavy-duty concrete anchors are categorized into mechanical expansion anchors (Wedge and Sleeve), drop-in anchors, and concrete screws (Tapcons), specified by drill bit diameter, minimum embedment depth, and tensile pullout / shear load capacities.
HVAC Duct Sizes
11 specs
Standard residential and commercial HVAC duct dimensions are specified by round spiral diameter (4 to 20 inches) and equivalent rectangular cross-sections based on airflow capacity (CFM) at 0.10 inches water column friction loss per 100 feet.
Rebar Sizes
9 specs
Standard reinforcing steel bar (rebar) sizes under ASTM A615 are designated by number sizes #3 through #18 representing the nominal diameter in eighths of an inch (e.g. #4 rebar = 4/8" = 1/2" / 12.7 mm diameter, weighing 0.668 lb/ft).
Structural Steel Shapes
8 specs
AISC structural steel profiles standardize hot-rolled structural members including Wide Flange I-Beams (W-Shapes e.g. W8×10 = 8" nominal depth, 10 lb/ft), American Standard Beams (S-Shapes), Channels (C-Shapes), Hollow Structural Sections (HSS), and Angles (L-Shapes).