Ngụkọta oge nke zita osisi ugbo
Dee akụkụ millimeters
X - Na ogologo nke ugbo
Y - Elu ugbo
Z - Ọkpụrụkpụ nke osisi
W - Obosara nke osisi
S - ọnụ ọgụgụ nke vetikal posts
P - Struts
N - ngosi agukọta akụkụ
Osisi truss mejupụtara ndị ọcha na-akpụ isiike zita Ọdịdị.
Na-atụ aro elu osisi ugbo - erughị pasent 20 nke ndị na-adịru.
Usoro ihe omume wepụtara chọrọ ego nke ihe na ugbo drawings-egosi chọrọ akụkụ nke akụkụ.