k^ '■!" 



!?f 



^\y. 



This would represent a reduction of about 40 

 percent, compared with a projected reduction of 

 25 percent in consumption of all construction 

 materials per dollar of construction expenditure. 

 Future use of plywood per dollar of construction 

 expenditure is projected to increase slightly during 

 the 1960's, partly on the assumption that plywood 

 has not fully completed its displacement of lumber 

 in this field of construction. Thereafter, a drop 

 in plywood use per dollar of expenditure is 

 anticipated. 



Substantial Increases Projected in 

 Total Use of Lumber and Plywood 



Projections of total lumber use, derived from 

 the projected construction expenditures and 

 assumed changes in wood use factors, rise from 5 

 billion board feet in 1962 to 6 billion board feet in 

 1970, and to 9.2 billion board feet in 2000. 



Projections for plywood show a rise from 2.8 

 billion square feet in 1962 to 4.7 billion square feet 

 in 1970, and to 8.5 billion square feet in 2000. 



An estimated 1.0 billion square feet (}2-inch 

 basis) of building board was used in 1962 in non- 

 residential construction. This included an esti- 

 mated 800 million square feet of insulation board 

 (}^-inch basis), about 700 million square feet of 

 hardboard Os-inch basis), and some 26 million 

 square feet of particleboard (X-inch basis). Esti- 

 mates of prospective demands for these products — 

 amounting to roughly three times the level of con- 

 sumption in 1962 — are included in a later section 

 on Demand for Pulp wood. 



UPKEEP AND IMPROVEMENTS 



In addition to new residential and new nonresi- 

 dential construction covered in the preceding sec- 

 tions, the upkeep and improvement of residential 

 and nonresidential structures (other than farms 

 and railroads) also accounts for substantial use 

 of wood products. 



Expenditures for Residential Upkeep and 

 Improvements Show Major Increases 



Expenditures for upkeep and improvements of 

 residential structures amounted to about $11.2 

 billion in 1962 (table 13). This included outlays 

 for such purposes as painting, repair or replace- 

 ment of siding and roofing, alterations and remod- 

 eling, and additions such as garages, patios, drive- 

 ways, and fences. 



744-350 0^65^ 3 



Over 5 billion board feet of lumber was for upkeep and 

 improvements in 1962 — mostly on residential buildings. 



Table 13. — Expenditures for repairs, alterations, 

 and additions of residential structures, 1920- 

 2000 



[1961 dollars] 









Alterations 



Period or year 



Total 



Repairs 



and 

 additions 





Million 



Million 



Million 





dollars 



dollars 



dollars 



1920-29 1 



3,275 



2,565 



710 



1930-39 > 



3,872 



3,110 



762 



1940-49 1 



5,879 



4,284 



1,595 



1950-59 1 



10,604 



6,862 



3,742 



1960 



13,159 



7,642 



5,518 



1961 



13,805 



8,219 



5,586 



1962 



11,166 



6,693 



4,473 



PROJECTIONS 



1970 



16,000 



10,000 



6,000 



1980 



19,100 



11,600 



7,500 



1990 



22,400 



13,400 



9,000 



2000 



26,600 



15,600 



11,000 



' Data shown are annual averages for the decade. 



Note: Data for the years 1920-59 exclude farm house- 

 holds, 1960-62 and projections include all households. 



Sources: 1920-56, U.S. Department of Labor and U.S. 

 Department of Commerce, statistical supplement to vol. 3 

 of Construction Review, Construction Volume and Costs, 

 1915-1956, 1958. 1957-59, U.S. Department of Com- 

 merce, Business and Defense Services Administration, 

 Construction Review. 1960-61, U.S. Department of Com- 

 merce, Bureau of the Census, Construction Reports, Resi- 

 dential Alterations and Repairs (series C50-6), July 1962. 



1962, Bureau of the Census, Construction Reports, Resi- 

 dential Alterations and Repairs (series C50-8), November 



1963. Projections, U.S. Department of Agriculture, 

 Forest Service. 



