Ka jingkhein ia ki raft.

Ka jingkhein ia ki jingheh bad ki angle jong ki tnum

Sngewbha pyni ia ki jingthew ba donkam ha ki milimitar

X - ka jingheh jong ka iing
Y - ka jingjrong jong ka tnum
C - ka jingheh kaba heh
Z - ka jingjngai na ka tduh jong ka board haduh kaba sdang jong ka jingot .
B - Ka jingheh jong ka tnum

ka jingshim jingmut

Khlem ki tnum, ym lah ban tei ia ka tnum.
Da ka jingtei ia ka tnum gable, donkam ban khein ia ka jingheh jong ki tnum, ki angle ba la ot bad ki thliew.
Ka prokram khein rafter la shna na ka bynta kane.
Da kaba pynshong nongrim ha ka jingheh jong ka iing, la khein ia ka jingjrong naduh kaba sdang haduh ka tduh jong ka tnum bad ka jingheh jong ka overhang, ka jingjrong jong ki tnum bad ka jingjngai sha ka thliew.
Ka prokram kan dro ruh ia ka dur jong ki tnum ryngkat bad ki jingthew. Kane kan long kaba myntoi khamtam eh ia kito kiba rai ban shna ia ki rafters da la ki jong ki kti.