Me ya sa ba a 2x4 a hakika auna 2-inci by 4 inci?
Lokacin da ziyartar gidanka na gida ko mai sana'a na itace, za ku lura cewa kayan aikin katako na al'ada ya zo ne a cikin nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan. Bugu da ƙari, launi mai laushi ya bambanta da manyan nau'in katako, wanda kashinsa ya fi sayar da shi mafi yawa. Duk da yake lambobin da aka yi amfani da su don kwatanta katako mai girma na al'ada na iya zama mahimmanci, zasu iya zama ɗan ruɗi, kamar yadda zaku gane.
Dalilin da ya sa Daya-Inch Ba Gaskiya Daya-inch ba
Kowane mutum ya ji game da 2x4 (ma'anar "biyu ta hudu"), amma mutane kaɗan sun gane cewa ainihin tsawo da nisa na 2x4 na ainihi wani wuri kusa da 1 1/2 "x 3 1/2" dangane da bushewa daga cikin kayan da hanyoyin milling.
Hakazalika, 1x (pronounced "one-by") ya kasance kawai game da 3/4 "a cikin kauri. Itacen shrinks lokacin da aka bushe shi, saboda haka katako na katako kayan aiki daidai bisa ga haka saboda katako yana shrinks a layi (a fadin hatsi maimakon itace tare da hatsi), tsawon wannan yanki ne kawai ya sa wannan shrinking ya shafi kadan, saboda haka 8 '2x4 a lokacin da aka zubar da shi a gindin gidan yana kusa da kusan tsawon lokaci 96. inci idan ana samuwa don sayan ku gida na gida ko lumberyard.
Softwood Sizing
Yawancin tsararraki, amfani da gine-ginen gida da kuma aikin gine-gine na asali, zo cikin 1x da 2x masu girma. A saman rabin ginshiƙi da aka nuna, ginshiƙan suna nuna "tallace-tallace tallan" kuma ana iya kwatanta da ainihin ƙananan girman a cikin shafi na dama zuwa dama. Alal misali, matakan 2x6 yawanci ne a 1-1 / 2 "x 5-1 / 2" a ainihin girman. wani jirgi 2x12 zai kasance kusa da 1-1 / 2 "lokacin farin ciki x 11-1 / 4" a fadin.
Hardwood Sizing
Hardwood sizing zai iya zama dan damuwa, ba kawai saboda ma'auni ma'auni da aka yi amfani da ita ba don farashin allon amma kuma saboda sau da yawa ya dogara ne akan ko an adana samfurin a gefe guda (S1S) ko a bangarorin biyu (S2S). Yi la'akari a cikin sashin Hardwood Sizing na chart (don katako katako mai girma) cewa wani yanki na yanki daya-inch zaiyi yawanci 7/8 "idan an tayar da shi a gefe daya, amma 13/16" tarnaƙi.
Hardwoods yana da wuya a zo a cikin matsakaicin yanayin kamar softwoods. Maimakon gano 2x6 a cikin nau'in katako, za ku ga cewa masu sayarwa suna sayar da katako a wasu nau'ikan da ba'a iya samuwa da su ba.
Bugu da ƙari, ana iya sayar da katako a cikin sassan. Kowace kwata yana nufin 1/4-inch a cikin kauri, ma'ana, jirgi 5/4 yana da kusan 1-1 / 4. "Idan aikinka ya kira wani wanda yake daidai da inci daya, za ku so ku siya a 5/4 jirgi da kuma niƙa shi zuwa girman dace ta amfani da surface planer.
Plywood
Plywood mu samuwa a cikin 4'x8 'sheets, amma sake, rassan girma girma iya zama yaudara. Mafi yawan nau'in plywood shine 1/2-inch da 3/4-inch, amma a gaskiya, wannan yayi daidai da 15/32-inch da 23/32-inch a cikin kauri daidai da bi.
Plywood yana da digiri a cikin A, B, C, da kuma D, dangane da ƙaddarar sandan ɓangarorin biyu na takarda, A kasancewa mai tsabta. An saka takarda a garesu biyu: alal misali, takarda na plywood na BC shine matakin B a gefe ɗaya kuma C a daya.