1. Mokhoa oa ho khanna qubu e le 'ngoe
(1) Lintlha tsa kaho. Sebelisa qubu e le 'ngoe kapa tse peli tsa tšepe e le sehlopha, 'me u qale ho khanna sekotoana se le seng (sehlopha) ka bonngoe ho qala sekhutlong se le seng.
(2) Melemo: Kaho e bonolo ’me e ka khannoa ka ho tsoelang pele. Mokhanni oa qubu o na le tsela e khuts'oane ea ho tsamaea 'me o potlakile.
(3) Mathata: Ha boloko bo le bong bo khannoa, ho bonolo ho sekamela ka lehlakoreng le leng, ho bokellana ha liphoso ho thata ho lokisa, ’me ho thata ho laola ho otloloha ha lebota.

2. Double-layer purlin piling mokhoa
(1) Lintlha tsa kaho. Pele, haha ​​mekhahlelo e 'meli ea purlins ka bophahamo bo itseng fatše le sebaka se itseng ho tloha axis, ebe o kenya liqubu tsohle tsa lakane ka purlins ka tatellano. Ka mor'a hore likhutlo tse 'nè li koaloe, butle-butle khanna liqubu tsa lakane karoloana ka sekoahelo ka mokhoa o hatang ho ea holimo ho moralo.
(2) Melemo: E ka netefatsa boholo ba sefofane, ho tsepama le ho batalla ha lebota la qubu ea lakane.
(3) Mathata: Kaho e rarahane ebile ha e na chelete e ngata, ’me lebelo la kaho lea lieha. Ho hlokahala liqubu tse nang le sebōpeho se khethehileng ha ho koaloa le ho koala.

3. Mokhoa oa skrine
(1) Lintlha tsa kaho. Sebelisa liqubu tsa tšepe tse 10 ho isa ho tse 20 bakeng sa purlin e 'ngoe le e 'ngoe ea lera le le leng ho theha karolo ea kaho, e kenngoa mobung ka botebo bo itseng ho etsa lerako le lekhutšoanyane la skrine. Bakeng sa karolo e 'ngoe le e' ngoe ea kaho, qala ka ho khanna 1 ho ea ho 2 lipampiri tsa tšepe lipheletsong tse peli, 'me u laole ho tsitsa ha eona, u lokise terata ka tjheseletsa ea motlakase,' me u khanne liqubu tsa lakane tse bohareng ka tatellano ho 1/2 kapa 1/3 ea bophahamo ba diqubu tsa lakane.
(2) Melemo: Ho ka thibela ho sekamela ho feteletseng le ho sotha ha liqubu tsa maqephe, ho fokotsa phoso e ntseng e eketseha ea ho sekama ha ho khanna, le ho koala sekheo se koalehileng. Kaha ho khanna ho etsoa ka likarolo, ho ke ke ha ama kaho ea liqubu tsa tšepe tse haufi.