Video: Ntev npaum li cas 2x12 siab kho qhov ntev?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
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. 2x8 txog 12 ko taw; 2x10 txog 15 ko taw thiab 2 x12 mus 18ft.
Xav txog qhov no, nyob deb npaum li cas tuaj yeem 2x12 ncua yam tsis muaj kev txhawb nqa?
Thaum twg txhawb nqa joists tias ncua 12 ko taw uas tsis muaj overhang dhau ntawm kab teeb, ob chav ply beam tuaj yeem ncua hauv taw tus nqi sib npaug rau nws qhov tob hauv ntiv tes. Ib ob 2 x12 nqaj tuaj yeem ncua 12 ko taw; ib (2) x 10 tuaj yeem ncua 10 ko taw thiab lwm yam.
Ib yam li ntawd, nyob deb npaum li cas tuaj yeem ncav cuag 2x10 rau pergola? A 4x4 ua ua kom lub hauv caug zoo thaum siv 6x6 posts. Kuj a 2 x 10 can span 13'9 thaum siv los ua lub lawj joist yog li kuv tsis paub meej vim li cas nws thiaj li tsis yooj yim nqa 14 ko taw ntawm ib qho pergola uas yog yuav ib nrab 75 feem pua tsawg dua load rau nws.
Ib yam li ntawd, tib neeg nug, koj tuaj yeem ncav cuag peb npaug 2x12 nqaj?
14ft ua
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" | |
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