Puas yog joist span suav nrog cantilever?
Puas yog joist span suav nrog cantilever?

Video: Puas yog joist span suav nrog cantilever?

Video: Puas yog joist span suav nrog cantilever?
Video: Joist Size Cantilever Spacing Beam Span Floor Ledger Footing | Floating Deck Frame Enclosed Patio 2024, Tej zaum
Anonim

Deck Cantilevers

5 sau tias deck joists cantilever mus txog 1/4 ntawm cov joist span . Tab sis koj yuav pom thaum koj saib ntawm feem ntawm lub ncua rooj rau joists nrog cantilevers tias cov joist span rau decks a cantilever yog feem ntau tsawg dua cov ncua rau qhov loj me joist tsis muaj cantilevers.

Yog li ntawd, yuav ua li cas nyob deb ntawm ib tug joist cantilever?

Joist Cantilever Raws li cov rooj sib tham tshiab thiab IRC cov kev cai, cantilever tuaj yeem txuas mus txog ib feem plaub ntawm lub backspan ntawm lub joist . Qhov no txhais tau tias joists , xws li cov ntoo thuv sab qab teb 2x10s ntawm 16 ntiv tes rau hauv nruab nrab, ncua 12 ko taw tau tso cai rau cantilever mus txog 3 ko taw ntxiv (saib daim duab, hauv qab).

Qhov thib ob, koj tuaj yeem ua tau ntev npaum li cas ntawm 2x6 joist? Saib ntawm lub rooj hauv qab no, peb saib ntawd 2x6 ua pem teb joists tau yuav cantilevered mus txog 2 ko taw thiab 6 ntiv tes (2'-6 ") thaum lub joists yog spaced 16 "sib nrug.

Ib yam li ntawd, koj tuaj yeem nug, koj tuaj yeem ua tau deb npaum li cas ntawm 2x8 joist?

Yog txoj cai ncua cov ntxhuav tso cai rau a 2x8 ua mus span 12 feet, ces tus cantilever tau ua 3fti.

Ntev npaum li cas 2x12 ncua tsis muaj kev txhawb nqa?

Thaum twg txhawb nqa joists tas ncua 12ft nrog tsis muaj overhang dhau lub beam, ib ob ply beam tau span hauv taw tus nqi sib npaug rau nws qhov tob hauv ntiv tes. Ib ob 2 x12 nqaj tau span 12 ko taw; ib (2) x 10 tau span 10 feet thiab lwm yam.

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