Chipinda cholumikizira cha portal ndi chimodzi mwa zipilala zomwe zimagwiritsidwa ntchito kwambiri popanga. Chifukwa chimango chachikulu chimakhala ngati "chitseko", chimatchedwa chipata kapena chipata cholumikizira, chomwe chimadziwikanso kuti chitoliro cha chiwombankhanga kapena gantry. Mtundu uwu wa chipata umapangidwa makamaka ndi chimango chachikulu, chimango chopingasa, chigongono chopingasa, bolodi la zipilala, maziko osinthika, ndi zina zotero.

Chipinda cha portal ndi chimodzi mwa zipilala zomwe zimagwiritsidwa ntchito kwambiri pomanga. Popeza chimango chachikulu chili ngati "chitseko", chimatchedwa chipilala cha portal kapena portal, chomwe chimadziwikanso kuti chitoliro cha Eagle kapena gantry. Mtundu uwu wa chipilala umapangidwa makamaka ndi chimango chachikulu, chimango chopingasa, chigongono chopingasa, bolodi la zipilala, maziko osinthika, ndi zina zotero. Chipinda cha portal ndi chida chomangira chomwe chinapangidwa koyamba ndi United States kumapeto kwa zaka za m'ma 1950. Chifukwa chili ndi ubwino wosonkhanitsira ndi kusokoneza mosavuta, kuyenda kosavuta, mphamvu yabwino yonyamula katundu, kugwiritsa ntchito motetezeka komanso kodalirika komanso phindu labwino pazachuma, chakula mofulumira. Pofika m'ma 1960, Europe, Japan ndi mayiko ena adayambitsa ndikupanga mtundu uwu wa chipilala motsatizana. Ku Europe, Japan ndi mayiko ena, kugwiritsa ntchito chipilala cha portal ndiye chachikulu kwambiri, chomwe chimapanga pafupifupi 50% ya mitundu yonse ya zipilala, ndipo makampani ambiri aluso omwe amapanga zipilala zamitundu yosiyanasiyana akhazikitsidwa m'maiko osiyanasiyana.

Kuyambira m'ma 1970, China yakhala ikuyambitsa njira yopangira ma portal scaffold kuchokera ku Japan, United States, Britain ndi mayiko ena motsatizana, yomwe yakhala ikugwiritsidwa ntchito pomanga nyumba zina zazitali ndipo yapeza zotsatira zabwino. Ingagwiritsidwe ntchito osati ngati ma scaffold amkati ndi akunja pomanga nyumba, komanso ngati slab ya pansi, chitsulo chothandizira matabwa ndi ma scaffold oyenda. Ili ndi ntchito zambiri, kotero imatchedwanso ma scaffold ambiri.

Pofika kumayambiriro kwa zaka za m'ma 1980, ena mwa opanga nyumba ndi mafakitale anayamba kutsanzira malo oimikapo magalimoto. Mpaka mu 1985, opanga malo oimikapo magalimoto 10 anakhazikitsidwa motsatizana. Malo oimikapo magalimoto agwiritsidwa ntchito kwambiri m'mapulojekiti omanga m'madera ena, ndipo alandiridwa ndi magulu omanga a Guangda. Komabe, chifukwa cha kusiyana kwa zinthu zomwe zimapangidwa komanso miyezo yabwino ya fakitale iliyonse, zimabweretsa mavuto pakugwiritsa ntchito ndi kuyang'anira malo omanga. Izi zakhudza kwambiri kukwezedwa kwa ukadaulo watsopanowu.

Pofika m'zaka za m'ma 1990, mtundu uwu wa malo omangira nyumba unali usanapangidwe ndipo sunkagwiritsidwa ntchito kwambiri pomanga nyumba. Mafakitale ambiri omangira nyumba anali atatsekedwa kapena kusinthidwa kuti apange nyumba, ndipo mayunitsi ochepa okha omwe anali ndi khalidwe labwino lokonza zinthu anapitiriza kupanga nyumba. Chifukwa chake, ndikofunikira kupanga mtundu watsopano wa malo omangira nyumba pamodzi ndi mawonekedwe a zomangamanga za dziko lathu.