XII.]
BRITISH OAK.
73
shall be less than one-fourth of the diameter of the piece.
For the sided timber (Fig. 17)[1], it is also agreed that the price is to be, for each log measuring—
| 120 | cub. ft. | and upwards, | sided contents, ⅌ load of 50 cub. ft. £ | ||
| 119 | cub. ft.„ | to | 100 | ft. | sided contents,„ ⅌ load of 50 cub. ft. £„ |
| 99 | cub. ft.„ | to„ | 80 | ft.„ | sided contents,„ ⅌ load of 50 cub. ft. £„ |
| 79 | cub. ft.„ | to„ | 60 | ft.„ | sided contents,„ ⅌ load of 50 cub. ft. £„ |
| 59 | cub. ft.„ | to„ | 40 | ft.„ | sided contents,„ ⅌ load of 50 cub. ft. £„ |
| 39 | cub. ft.„ | to„ | 20 | ft.„ | sided contents,„ ⅌ load of 50 cub. ft. £„ |
| Under 20 | ft.„ | sided contents,„ ⅌ load of 50 cub. ft. £„ | |||
the conditions being that in computing the measurement
FIG. 17a.
FIG. 17b.
for payment of sided timber, no quarter-inches to be allowed in the sidings. All the timber to be so sided that, between the wanes,[2] at half the length of the piece, there shall not be less than the siding with one-eighth
- ↑
It has been found in practice that a fairly grown cylindrically-shaped British Oak tree of
30 inches calliper will yield sided timber of about 21 inches. 24 inches„ calliper will„ yield sided„ timber of about„ 18½ inches„ 18 inches„ calliper will„ yield sided„ timber of about„ 12½ inches„ and that generally about two-thirds of the calliper of the rough tree is the siding to be obtained from it.
- ↑ Wane is the natural rounded edge of the log, W Fig. 16b.
