21 Species Booklet 2004.pdf - Guyana Forestry Commission
21 Species Booklet 2004.pdf - Guyana Forestry Commission
21 Species Booklet 2004.pdf - Guyana Forestry Commission
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APPENDIX 2<br />
DIMENISIONS OF WALLABA POLES (Imperial System)<br />
The dimensions shown in this table were derived by the same method used in determining the ASA<br />
standard dimensions of poles.<br />
Special Oversized Classes Classes comparable with ASA Classes<br />
Classes and Breaking 00 0 1 2 3 4 5 6 7<br />
Load Ratings in Pounds 6400 5400 4500 3700 3000 2400 1900 1500 1200<br />
Minimum top circum 29 28 27 25 23 <strong>21</strong> 19 17 15<br />
(Inches)<br />
Length<br />
of<br />
Pole<br />
(ft.)<br />
Ground<br />
Line Dist.<br />
from Butt<br />
(Feet)<br />
Minimum Circumferences at 6ft from Butt<br />
(Inches)<br />
16 3.5 19.0 17.5 16.5<br />
18 3.5 23.5 22.0 20.5 18.5 17.5<br />
20 4 32.0 30.0 28.5 26.5 25.0 23.0 <strong>21</strong>.0 19.5 18.0<br />
22 4 33.5 31.5 29.5 28.0 26.0 24.0 22.0 20.5 19.0<br />
25 5 35.0 33.0 31.0 29.0 27.0 25.5 23.5 <strong>21</strong>.5 20.0<br />
30 5.5 38.0 36.0 33.5 31.5 29.5 27.5 25.5 23.5 <strong>21</strong>.5<br />
35 6 40.5 38.0 36.0 33.5 31.5 29.0 27.0 25.0 23.0<br />
40 6 42.5 40.5 38.0 35.5 33.5 31.0 28.5 26.5 24.5<br />
45 6.5 45.0 42.5 40.0 37.5 35.0 32.5 30.0 27.5 26.0<br />
50 7 46.5 44.0 41.5 39.0 36.5 34.0 31.5 29.0 27.0<br />
55 7.5 48.5 46.5 43.0 40.5 38.0 35.0 32.5 30.0<br />
60 8 50.0 47.5 44.5 42.0 39.0 36.5 33.5 31.0
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