Tsawon shigarwa na lif ɗin ajiya mai motoci 3 yana da mahimmanci ta hanyar tsayin bene da aka zaɓa da kuma tsarin kayan aikin gabaɗaya. Yawanci, abokan ciniki suna zaɓar tsayin bene na 1800 mm don lif ɗin ajiye motoci mai hawa uku, wanda ya dace da ajiye motoci mafi yawan motoci.

Idan aka zaɓi tsayin bene mai girman 1800 mm, tsayin da aka ba da shawarar shigarwa shine kimanin mita 5.5. Wannan ya ƙunshi jimillar tsayin wurin ajiye motoci a kan benaye uku (kimanin 5400 mm), da kuma ƙarin abubuwa kamar tsayin tushe a gindin kayan aiki, babban wurin tsaro, da duk wani sarari da ake buƙata don gyara da gyara.

Idan an ƙara tsayin bene zuwa 1900 mm ko 2000 mm, tsayin shigarwa kuma zai buƙaci a ƙara shi daidai don tabbatar da aiki yadda ya kamata da kuma isasshen izinin tsaro.

Baya ga tsayi, tsayi da faɗin shigarwar suma muhimman abubuwan da za a yi la'akari da su ne. Gabaɗaya, girman da ake buƙata don shigar da lif mai hawa uku yana da tsawon mita 5 da faɗin mita 2.7. Wannan ƙirar tana inganta amfani da sarari yayin da take kiyaye daidaito da amincin kayan aiki.

A lokacin shigarwa, yana da matuƙar muhimmanci a tabbatar da cewa wurin yana daidai, ƙarfin ɗaukar kaya ya cika ƙa'idodin da ake buƙata, kuma shigarwar ta bi ƙa'idodin da masana'antar kayan aiki ta bayar.

Domin tabbatar da aminci da aikin lif ɗin na dogon lokaci, ana ba da shawarar kulawa akai-akai da dubawa don kiyaye shi cikin yanayi mafi kyau na aiki.