4.4 - GARAGE
  Number of households by year of construction
1990 – 1999 2000 – 2011
Dwelling has a garage
Yes - attached 814,595 A 1,213,421 A
Yes - non-attached 170,895 M 142,058 M
Yes - not stated U U
No 253,588 A 219,939 M
Don't know U
Not stated U U
Amount of insulation in the garage
Full insulation - all walls and garage doors are insulated 230,955 A 406,696 A
Full insulation - all walls but not the garage doors are insulated 289,107 A 419,847 M
Partial insulation - some walls are insulated 167,094 A 286,009 M
No 140,843 M 120,261 M
Don't know 106,826 M 147,204 M
Not stated U U
Garage is heated
Yes 179,686 M 226,939 M
No 759,908 A 1,154,103 A
Don't know U U
Not stated U U
Type of garage
One-car garage 303,983 A 295,436 A
Two-car garage 585,205 A 990,242 A
Three-or-more-car garage 51,195 M 103,760 M
Don't know
Not stated U U

Note:

Due to rounding, the numbers may not add up and may differ slightly among tables.

Legend:

The letter beside each estimate classifies its quality as follows: A–Acceptable, M–Use with caution, U–Too unreliable to be published.

Source:

2011 Survey of Household Energy Use