Lub kaum ntse ntse sib npaug, tus yam ntxwv los ntawm ob qhov sib npaug - ntev ob txhais ceg, muaj nyob rau hauv ntau qhov ntau thiab tsawg. Sab ntev ntawm lub kaum sab xis steel feem ntau txawv ntawm qhov me me li 20 hli × 20 hli mus rau qhov loj li 200 hli × 200 hli. Piv txwv li, qhov me me xws li 20 mm × 20 mm txog 50 mm × 50 mm feem ntau yog siv rau hauv lub teeb - daim ntawv thov. Cov me me no muaj cov thicknesses feem ntau yog li ntawm 2 hli mus rau 5 hli, ua rau lawv haum rau tej yaam num uas tsis tshua muaj load - bearing yuav tsum, xws li me me - scale rooj tog thav duab los yog yooj yim bracing nyob rau hauv tej yaam num DIY tej yaam num.
Loj sib npaug ntawm lub kaum sab xis steel, nrog sab ntev ntawm 100 hli × 100 hli thiab siab dua, tuaj yeem muaj thicknesses ntawm 6 hli mus txog 20 hli. Cov ntu loj thiab tuab dua no yog tsim los rau hnyav - daim ntawv thov. Hauv kev tsim kho, piv txwv li, 150 mm × 150 mm sib npaug ntawm lub kaum sab xis steel nrog lub thickness 10 - mm yuav siv tau rau cov txheej txheem bracing ntawm cov tsev lag luam lossis hauv kev tsim cov choj uas yuav tsum muaj zog thiab ruaj khov. Qhov ntau qhov ntau thiab tsawg tso cai rau engineers thiab fabricators xaiv qhov tsim nyog sib npaug ntawm lub kaum sab xis steel raws li qhov tshwj xeeb load - bearing xav tau kev pab thiab spatial txwv ntawm lawv tej yaam num.