Video: Dab tsi yog qhov max span rau 2x6 Rafter?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Max. Nyob Load 20 lbs/ft2 (956 N/m2)
| Tshaj siab tshaj plaws (ft-hauv) | ||
|---|---|---|
| Nominal Loj (inch) | Rafter Sib nrug, Center rau Center (inch) | Qib Qib |
| 2x6 ib | 12 | 14' - 9'' |
| 16 | 12' - 9'' | |
| 24 | 10' - 5'' | |
Tsis tas li ntawd, nyob deb npaum li cas koj tuaj yeem ncav cuag 2x6 Rafter?
Lub rooj hais tias 2 X 6 cov rafters spaced 16 nti ntawm qhov chaw (o.c) tau span qhov siab tshaj plaws nyob deb ua 13ft5. Lwm qhov kev xaiv yog 2 X 8 cov rafters spaced 24 cm o.c.
Yuav ntev npaum li cas 2x4 Rafter ncua? ?? Yog cov phab ntsa 2x4 ua ces qhov tseeb ncua los ntawm sab hauv phab ntsa mus rau sab hauv phab ntsa yog 8'-5.
Raws li txoj cai, deb npaum li cas tuaj yeem ncav cuag 2 los ntawm 8 Rafter ncua?
Piv txwv li, nyob rau hauv lub rafter ncua cov lus hauv qab no, lub xov tooj tseem ceeb (hauv 40 # Live Load table), qhia tias 2 "x 8 " Southern Yellow Pine joists , uas muaj qib ntawm # 2 , uas yog spaced 24 "sib nrug, ua tau muaj qhov siab tshaj plaws ncua ntawm 10 ko taw - 3 ntiv tes (10-3) yog tsim rau ib qho chaw nyob ntawm 40 lbs / ft 2.
Muaj peev xwm thauj khoom ntau npaum li cas tuaj yeem txhawb nqa 2x6?
Hom ntawm thauj hauv nqe lus nug yuav kuj txiav txim npaum li cas pes a 2 x 6 ka ntawm ntug. Piv txwv li, 2x4 ntoo tuaj yeem tuav lub cav 4-lub tog raj kheej yooj yim tab sis yuav tsis tuav ib tug loj dua. Ntawm qhov kawg, a 2x6 tuaj yeem txhawb nqa V8 cav ntawm 600-700 lbs.
Pom zoo:
Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
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