Thaum txhim kho racks, tshwj xeeb tshaj yog cov uas yuav tsum tau tiv taus hnyav loads, nws yog ib qho tseem ceeb heev uas yuav tau xaiv cov brackets uas yog raws li txoj hauj lwm. Peb lub luag haujlwm hnyav yog tsim los ua kom tau raws li qhov xav tau ntawm lub zog thiab kev ua siab ntev. Ua los ntawm cov hlau zoo, cov hlua khi no tau sim thiab ua pov thawj tias muaj zog heev, tso cai rau koj txhim kho koj lub txee yam tsis muaj kev txhawj xeeb.