Video: Yuav ntev npaum li cas 2x12 pem teb joist span?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Nyob rau hauv dav dav, joists spaced 16 nti 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.
Kuj tseem paub yog, deb npaum li cas tuaj yeem ua tau 2x12 ncua?
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 tug kuj yuav nug, dab tsi loj lumber yuav 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" | |
Hauv qhov no, qhov ntev tshaj plaws rau 2x10 pem teb joist yog dab tsi?
21ft ua
Kuv tuaj yeem ncav cuag qhov ntev npaum li cas?
Tshaj yog qhov kev ncua deb ntawm kev txhawb nqa, thiab yog ua raws li kev sib xyaw ua ke nrog cov nplaum-nailed APA Rated® sheathing lossis Sturd-I-Floor® panels ntawm qhov tsawg kawg nkaus thickness 19⁄32 (40/20 lossis 20 o.c.) rau ntoo sib nrug ntawm 19.2 los yog tsawg dua, los yog 23⁄32 (48/24 los yog 24 o.c.) rau ib ntoo sib 24.
Pom zoo:
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