2x6 or 2x8 for decking

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If you see a deck framed with 2x8 pressure treated lumber (typically Southern Yellow Pine or SYP), spaced 16" o.c.,. (8" -2) x 2 = 12' = maximum allowable span for a generic "deck floor joist". A look at an actual current joist span table will show that depending on the wood species, the allowable spans for a 2x8 floor joists 

Edge distance and spacing requirements are based ledger shall be a minimum of 2x8 nominal. American wood for various connections. A double 2x12 beam can span 12 feet; (2) 2x10 10 feet and so on choose from southern pine, ponderosa pine western cedar 2x6 up to joists. Span tables for deck joists, 

OR LESS. 900mm (36") FOR DECK. LESS THAN 1800mm (6'). TALL 1070mm (42") FOR. DECK 1800mm (6') TALL. OR GREATER. 5 4"RADIUS EDGE DECKING. 2x8 ACQ AG JOIST 16" o c. 3-2x8 BEAM on 3-2x6 Treated POSTS. 24"x24"x3" CONCRETE PADS 8' o c. BASIC DECK. PLANS. SCALE 1 2"=1'-0" 

He is talking about going with 2x8's. Most decks I have seen have 2x6's on them, and I'm figuring there must be a reason I have not yet seen a deck with boards wider than that. Is there a reason we should NOT use 2x8? So far, I'm just going by my lack of knowledge, and hubby's knowledge in his regular 

The minimum size joist to be used in deck construction is not a stand-alone consideration, and is related to the number of footings and beams that will be installed. In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet.

(3) 2x6. (3) 2x8. (3) 2x10. (3) 2x12. Table 4: Southern Pine Deck Beam Spans (LB)1. 1 Assumes 40 psf live load, 10 psf dead load, L 360 deflection, No. 2 grade, and wet service conditions. 2 Maximum allowable overhang cannot exceed L 4 or ¼ of actual main span. Assumes cantilever length 180 deflection with 220 lb 

Joist sizes for floor decks should be a minimum of 2x8. 2x10 is fine and homes are often built with them to increase the span. Engineers will specify joist size unique to each home that is built. But no one builds decks with 2x6 anymore. The codes do not allow it. You may still see it occasionally but probably 

Lumberock should be fastened to the deck frame using standard fastening systems, such as stainless steel screws. For 5 4x6 deck and dock boards, we recommend a joist span of 16" on centers for residential projects and 12" on centers for commercial angle projects. For 2x6 and 2x8 deck and dock boards, we 

Measurements of common dimension lumber: 1x2 — 3 4" x 1-1 2" 1x3 — 3 4" x 2-1 2" 1x4 — 3 4" x 3-1 2" 1x6 — 3 4" x 5-1 2" 1x8 — 3 4" x 7-1 4" 1x10 — 3 4" x 9-1 4" 1x12 — 3 4" x 1-1 4" 2x2 — 1-1 2" x 1-1 2" 2x4 — 1-1 2" x 3-1 2" 2x6 — 1-1 2" x 5-1 2" 2x8 — 1-1 2" x 7-1 4" 2x10 — 1-1 2" x 9-1 4" 2x12 — 1-1 2" x 1-1 4"

Or better, o c, 2x6, 2x8, 2x10, 2x12 as far redwood framing with the pith content in 2nd growth i'd only use #1 heartwood not #2 table residential decks 2x8 Deck span tables the closer together two boards (the spacing) less weight they why a 12' between beams requires 2x8 joist if joists are maximum of is 

Redwood is a wood like no other and decks built of redwood are unique in their beauty and long-lasting service. There's a grade of redwood lumber for any part of any deck—luxury decks, economical decks, simple decks and decks that push the limits of the definition. Deck building isn't difficult. In fact, it's a perfect project 

Joist Size (joists 16" o.c.). Up to 8 feet, 2x6 (Southern pine, Douglas fir, Western red cedar, S-P-F, or Hem-Fir) 2x8 (redwood, Northern white cedar). 8 to 10 feet, 2x8 (all species listed above). 10 to 12 feet, 2x8 (Southern pine, Douglas fir, Western red cedar, S-P-F, or Hem-fir) 2 x 10 (redwood, Northern white cedar) 

TIP: If you're using 2x6's and the last gap is a bit wider than a 2x6, use a 2x8 of the same wood species, ripped down a little if necessary. Cutting Wild Ends. Cutting Wild Ends Cut the wild ends when the deck boards are all done. To mark a cutting line, set one edge of a framing square flush with the rim joist at the end of the 

As David Finkenbinder, branch design engineer for Simpson Strong-Tie, says, “Prescriptive solutions are not currently available to builders for anchoring guardrail posts to 2x6 joists, primarily due to the large forces that develop when attaching a guardrail post to a 2x6.” If I had used 2x8 or larger joists 

See the chart below and study your local code. Beam Spans: Distance a joist spans between a beam and a ledger or between beams, using No. 2 and better Southern pine or Douglas fir. Joist: 2x6. If joists are spaced: 16" Span: 9 1 2'. Joist: 2x6. If joists are spaced: 24" Span: 8'. Joist: 2x8. If joists are spaced: 16" Span: 13'.

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