1. Sukura hejuru yubutaka hagomba gushyirwaho igorofa. Ubuso bugomba kuba buringaniye kandi bwumye. Igomba kuba ubuso bumaze kuringanizwa na sima ya sima, hamwe nuburebure bwuburebure buri munsi ya mm 4 bupimwe nurwego rwa metero 2.
2. Shyira akamenyetso hejuru yubutaka kugirango umenye aho buri nkunga iherereye.
3. Shyira inkunga ahabigenewe, shyiramo ikadiri, kandi uhindure uburebure bwimiterere yose yimfashanyo.
4. Kusanya ibiti byingoboka, ubihuze kugirango ube urwego (birasabwa urwego rwa laser), hanyuma ukomereze imigozi kugirango urinde ibiti.
5. Shyiramo imbaho zo hejuru, ukata impande zose nkuko bikenewe.
6. Nyuma yo kwishyiriraho igorofa irangiye, shyiramo baseboard kugirango urinde kandi ushimishe impande zurukuta.
7. Sukura hasi hejuru yubwubatsi burangiye.
