338 THE OUTLOOK FOR TIMBER IN THE UNITED STATES 



Table 5.— Panel products consumed per housing unit, by type of unit, 1970, with projections (1970 relative prices) to 2000 



Year 



Hardboard (H-inch basis) 



Insulation board (J^-inch basis) 



Particleboard (%-inch basis) 





One- and two- 

 family 



Multifamily 



Mobile homes 



One- and two- 

 family 



Multifamily 



Mobile homes 



One- and two- 

 family 



Multifamily 



Mobile homes 



1970 



Square feet 

 1,000 



Square feet 

 40 



Square feet 

 170 



Square feet 

 935 



Square feet 

 40 



Square feet 

 710 



Square feet 

 250 



Square feet 

 55 



Square feet 



560 



Projections 



1980 

 1990. 

 2000. 



1,500 

 1,740 

 1,920 



200 

 240 

 290 



855 

 775 

 720 



Table 6.— Per capita expenditures for new nonresidential construction « by construction class, 1920-70, with projections to 





All classes 



Buildings 



Utilities 













Year 





Commercial 2 



Other 3 



sewer systems * 





All otner ° 





Expendi- 

 tures 



Annual 

 rate of 

 change 



Expendi- 

 tures 



Annual 

 rate of 

 change 



Expendi- 

 tures 



Annual 

 rate of 

 change 



Expendi- 

 tures 



Annual 

 rate of 

 change 



Expendi- 

 tures 



Annual 

 rate of 

 change 



Expendi- 

 tures 



Annual 

 rate of 

 change 



1920 



1967 

 dollars 

 109 

 175 

 191 

 91 

 135 



82 

 157 

 202 

 210 

 253 



264 



258 

 262 

 258 

 242 



Percent 



1967 

 dollars 

 19 

 32 

 28 

 8 

 11 



5 



17 

 29 

 29 

 35 



34 

 32 

 36 

 40 

 38 



Percent 



1967 

 dollars 

 48 

 69 

 69 

 25 

 41 



36 

 58 

 78 

 79 

 104 



112 

 107 

 100 

 100 

 88 



Percent 



1967 

 dollars 

 21 

 37 

 40 

 13 

 24 



14 

 41 

 39 

 38 



44 



47 

 48 

 55 

 52 

 54 



Percent 



1967 

 dollars 

 9 

 17 

 28 

 16 

 25 



5 

 21 

 31 

 37 

 43 



44 

 43 

 44 

 40 

 38 



Percent 



1967 

 dollars 

 13 

 20 

 26 

 30 

 35 



22 

 21 

 25 

 27 

 27 



27 

 27 

 27 

 26 

 24 



Percent 



1925 



1930 



1935 



1940 



1945 



1950 



1955 



1960 



1965 



1966 



1967 



1968 



1969 



1970 



9.9 



1.8 



-13.8 



8.2 



-9.5 



13.9 



5.2 



.8 



3.8 



4.3 



-.4 



-.4 



-1.5 



-6.2 



11.0 



-2.6 



-22.2 



6.6 



-14.6 



27.7 



11.3 



.0 



3.8 



-2.9 

 -5.9 

 12.5 

 11.1 

 -5.0 



7.5 



.0 



-18.4 



10.4 



-2.6 



10.0 



6.1 



.3 



5.7 



7.7 

 -4.5 

 -7.0 



0.0 

 -11.1 



12.0 



1.6 



-20.1 



13.1 



-10.2 



24.0 



-1.0 



-.5 



3.0 



6.8 



2.1 



14.6 



-5.5 



3.8 



13.6 



10.5 



-10.6 



9.^ 



-27.5 



33.2 



8.1 



3.6 



3.1 



2.3 

 -2.3 



2.3 

 -9.1 

 -5.0 



9.0 

 5.4 

 2.9 

 3.1 



-8.9 



-.9 



3.6 



1.6 



.0 



.0 



.0 



.0 



-3.7 



-7.7 



Low projections 



1980 

 1990 

 2000 



327 

 396 



487 



«2.0 

 2.0 

 2.1 



«2.0 

 2.2 

 2.3 



133 

 163 

 201 



«2.2 

 2.1 

 2.1 



62 



79 



106 



•2.4 

 2.5 

 3.0 



•1.5 

 .9 

 .9 



31 



•1.4 



36 



1.5 



41 



1.3 













Medium projections 















1980 



1990. 



2000 



337 



417 



517 



•2.3 



2.1 

 2.2 



52 

 65 

 83 



•2.4 

 2.3 

 2.5 



137 

 172 

 214 



•2.5 

 2.3 



2.2 



64 

 84 

 112 



8 2.7 

 2.8 

 2.9 



52 

 59 

 65 



6 1.7 



1.3 

 1.0 



32 

 37 

 43 



•1.7 

 1.5 

 1.5 



High projections 



1980 

 1990 

 2000 



344 

 431 

 542 



»2.5 

 2.3 

 2.3 



«2.6 

 2.5 

 2.5 



140 

 178 

 224 



«2.7 

 2.4 

 2.3 



65 

 86 

 118 



»2.9 

 2.8 

 3.2 



1 Excludes expenditures for farm construction. 



2 Includes private commercial buildings such as offices, stores, warehouses 

 and restaurants. 



3 Includes public and private nonhousekeeping, industrial, educational 

 religious, hospital and institutional, and similar miscellaneous buildings ' 



* Includes telephone and telegraph, other public utilities, sewer systems 

 and water supply facilities. 



'Includes military facilities, conservation and development, railroad 

 construction except tract construction, and all other public and private 

 construction not included in other categories. 



"1.9 



33 



1.4 



38 



1.1 



45 



«2.0 

 1.4 

 1.7 



8 Rates of increase calculated from the following 1970 trend values: all classes 

 $268; commercial buildings, $41; noncommercial, $107; utilities, water and 

 sewer systems, $49; highways, $44; and all other, $27. 



Note: Annual rates of increase are calculated for 5-year periods from 1920 

 through 1965, for 1-year periods 1965 through 1970, and for 10-year periods 

 1970 through 2000. 



Note: Data may not add to totals because of rounding. 



Sources: Calculated from information shown in text tables 114 and 125. 



