Video: Kuv puas tuaj yeem tsim lub lawj tawm ntawm 2x4?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Tshwj tsis yog nws yog cedar, koj yuav tsis tau txais ntau lub neej tawm ntawm nws raws li cov khoom siv decking - tshwj tsis yog koj muaj cov phiaj xwm los kho nws txhua lub xyoo. Cov 2x4 ua kuj yuav tsis ua rau lub hauv pem teb txaus joist, yog li koj yuav tsum tau siv cov txheej txheem lumber tshiab rau qhov ntawd.
Ib yam li ntawd, tib neeg nug, kuv puas tuaj yeem siv 2x4 rau lub lawj ncej?
2 x4s yeej tsis ok rau pem teb joists ! 2x6 yog iffy thiab tej zaum yuav tsis tau raws li qhov tsawg kawg nkaus code. Kuv pom zoo nrog Marksr, tias 2x6 yuav tsawg. Siv ib 4x6 es 2-2x6's rau koj beam.
Tom qab ntawd, lo lus nug yog, kuv puas tuaj yeem tsim lub lawj tawm ntawm 2x6? Hauv cov ntsiab lus dav dav, joists spaced 16 ntiv tes ntawm qhov chaw tau ncua 1.5 npaug ntawm taw lawv qhov tob hauv ntiv tes. 2x8 txog 12 ko taw; 2 x 10 mus rau 15 ko taw thiab 2 x 12 mus rau 18 ko taw. Qhov loj dua qhov lawj , qhov loj joists. 2x6 ua joists yuav tsum tsuas yog siv rau hauv pem teb lawj xeeb tias ua tsis xav tau, thiab yuav tsis muab rau, tej guards.
Yog li ntawd, kuv puas tuaj yeem siv 2x4 rau hauv pem teb joists?
ua ntej tau txais kev txhawb nqa los ntawm ib tug girder - ces yog, a 2x4 ua yuav tsum ua li cas. 2x4 ua yog haum rau qab nthab joists qhov twg LL zoo li 20 Lbs. Yog tias koj tau txais ib hom zoo nrog qhov siab tshaj Modulus ntawm Elasticity thiab qib zoo tshaj plaws thiab siv zoo li 12 "o.c. - koj yuav tau txais 8" ncua.
Ntev npaum li cas koj tuaj yeem cantilever ib 2x4?
Raws li cov lus tshiab span thiab IRC cov kev cai, cantilever tuaj yeem txuas mus txog ib - plaub lub backspan ntawm lub joist. Qhov no txhais tau hais tias joists, xws li yav qab teb ntoo thuv 2x10s ntawm 16 ntiv tes nyob rau hauv nruab nrab, spanning 12 ko taw tau tso cai rau cantilever mus txog 3 ko taw ntxiv (saib daim duab, hauv qab).
Pom zoo:
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