Gawar gida suna sama da kuma suna kawar kaɗan fiye da gawar ɗaya a waje — a tarihi kusan 0.3–0.4 gida a kowane wasa, yana bugi da tasirin taron akan ɗan wasan da jajeme, tafiya, da sanin gida. Amfanin gida shine gaskiya, ya bambanta da jiya, kuma yana raguwa a laka-lakacin farko.
Kowannen saurin iska na gayya yana ɗauke bambancin gida da waje maimakon ɗaya kawai; namu yana yi. Bakin batin kuɗi bashi kaɗan cewa gida-jiya ya wanzu — kasuwa ta sani — amma cewa girman sa ya bambanta da jiya da kakaushi, kuma farashin da aka saita akan jiya na duniya suna karfafa kuɗi masu bambanci.
A cikin jiyoyin da muka dace, jimar gida yana tashi kusan 1.4 da kusan 1.1 a waje — amfanin kusan 0.3-gida mai daraja kusan 8–10 maki na nasara a gaije mai daidaici. Jiya wacce kakaushi na yanzu yake taushi sama ko kasa da jiya ta kanta shine inda jimar galadima da farashi na 1X2 suna bambace da karfi.