2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Thaum txhawb nqa joists uas ncua 12 ko taw tsis muaj overhang dhau ntawm kab teeb, ob chav ply beam tuaj yeem hla mus ko taw tus nqi sib npaug rau nws qhov tob hauv inches. Ob chav 2x12 beam tuaj yeem ncav cuag 12 ko taw ; a (2) 2x10 tau span 10 ko taw thiab lwm yam.
Ua kom pom qhov no, cov ntoo loj npaum li cas tuaj yeem ncav cuag 20 ko taw?
Max. Nyob Load 60 lbs/ft2 (2873 N/m2)
| Qhov siab tshaj plaws (ft - hauv) | ||
|---|---|---|
| Nominal Loj (nti) | Joist Spacing Center rau Center (inch) | Ntoo Qib |
| 2x12 ua | 24 | 13' - 2" |
| 2 x14 | 12 | 20' - 10" |
| 16 | 18' - 0" | |
Qhov thib ob, nyob deb npaum li cas tuaj yeem ncav cuag 2x6 beam yam tsis muaj kev txhawb nqa? Hauv cov ntsiab lus dav dav, joists spaced 16 ntiv tes ntawm qhov chaw tuaj yeem ncua 1.5 npaug ntawm taw lawv qhov tob hauv ntiv tes. A 2 x8x mus txog 12 ko taw; 2x10 ua txog 15 ko taw thiab 2x12 txog 18 taw.
Raws li, deb npaum li cas koj tuaj yeem ncav cuag 4x6 beam?
Obviously, qhov loj dua nqaj , qhov loj dua nyob deb nws tuaj yeem ncua nruab nrab ntawm cov ntawv. Ib Redwood 4x 6 bw yuav tsum ncua tsis pub ntau tshaj 6 'ntawm cov ntawv txhawb nqa.
Ntev npaum li cas ib qho triple 2x6 beam span?
A tig 2x6 tshaj ib ncua ntawm 10 'foot yuav tsum muaj ntau tshaj li txaus rau lub lawj loads.
Pom zoo:
Yuav ntev npaum li cas 4x12 beam span?
Joist Spans Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Pine Red 4X10 5'-10 '4X12 6'-9' 3-2X6 4'-6 '3-2X8 5 '-9'
Yuav ntev npaum li cas 2x12 pem teb joist span?
Hauv cov ntsiab lus dav dav, joists spaced 16 ntiv tes ntawm qhov chaw tuaj yeem ncav cuag 1.5 zaug hauv ko 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
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