Data
New Construction

Structural Systems - Floor

These reports show market demand data for residential new home building products, average per-home purchase data, market size, and a five-year forecast for the new residential construction industry. The Structural Systems for Floors report contains a summary of purchase volume in square feet for a variety of structural floor material as well as species, depth and spacing of floor joists in each State, Metro Area, and County. Market data are also reported separately for Single-Family Detached homes and Multifamily. Product categories reported include:

STRUCTURAL FLOOR MATERIAL – GROUND FLOOR
(Square Feet of Floor)

  • Cast-in-place concrete
  • Precast concrete
  • Steel (all types)
  • Lumber joists
  • Wood I-joists
  • Open-web joists
  • Structural insulated panels
  • Other wood

STRUCTURAL FLOOR MATERIAL – UPPER FLOORS
(Square Feet of Floor)

  • Cast-in-place concrete
  • Precast concrete
  • Steel (all types)
  • Lumber joists
  • Wood I-joists
  • Open-web joists
  • Structural insulated panels
  • Other wood

STRUCTURAL FLOOR MATERIAL – ALL FLOORS
(Square Feet of Floor)

  • Cast-in-place concrete
  • Precast concrete
  • Steel (all types)
  • Lumber joists
  • Wood I-joists
  • Open-web joists
  • Structural insulated panels
  • Other wood

SPECIES OF LUMBER JOISTS
(Square Feet of 1st & 2nd Story Area)

  • Southern yellow pine (SYP)
  • Douglas fir
  • Hem-fir or other western woods
  • Spruce / Pine / Fir (SPF) or eastern spruce
  • Other
 

DEPTH OF LUMBER JOISTS
(Square Feet of 1st & 2nd Story)

  • 8 inches
  • 10 inches
  • 12 inches

SPACING OF LUMBER JOISTS
(Square Feet of 1st & 2nd Story)

  • 12 inches o.c.
  • 16 inches o.c.
  • 19.2 inches o.c.
  • 24 inches o.c.
  • 32 inches o.c.
  • Other spacing

DEPTH OF I-JOISTS
(Square Feet of 1st & 2nd Story)

  • 8 inches
  • 10 inches
  • 12 inches
  • 14 inches or greater

SPACING OF I-JOISTS
(Square Feet of 1st & 2nd Story)

  • 12 inches o.c.
  • 16 inches o.c.
  • 19.2 inches o.c.
  • 24 inches o.c.
  • 32 inches o.c.
  • Other spacing

DEPTH OF OPEN-WEB JOISTS
(Square Feet of 1st & 2nd Story)

  • 8 inches
  • 10 inches
  • 12 inches
  • 14 inches or greater

SPACING OF OPEN-WEB JOISTS
(Square Feet of 1st & 2nd Story)

  • 12 inches o.c.
  • 16 inches o.c.
  • 19.2 inches o.c.
  • 24 inches o.c.
  • 32 inches o.c.
  • Other spacing