Quiz

What gives wood its strength? *

Fiber cambium

Heartwood

Pores

All of the above

Of the tree types listed which has the greatest density? *

Douglas Fir

Western Larch

Lodgepole Pine

Amabilis Fir

How much of the world’s industrial wood is produced by temperate forests *

10%

90%

50%

75%

What is the average density of Douglas-Fir? *

450kg/m3

225kg/m3

355kg/m3

100kg/m3

Practical Aspects of Wood Quality for Architects and Engineers