2x6 or 2x8 for grade level floating deck? also, for northeast, decking part tongue and groove or just regular pressure treated 1x6 with 0.25' gaps? 10 comments. share. save hide 2 x 6 will span 4' fine,you could go up to 6' the best deal on decking lumber is 5/4 x 6 pt decking and a 1/4' gap is fine. in big box here upstate ny seven trusts
species and sizes of pressure-treated wood. treated wood is generally available as dimensional stock in 2x4s, 2x6s, 4x4s and 2x2s for rail components. 5/4x6s and 2x6s for decking. 2x8s, 2x10s and 2x12s for joists, stair stringers and beams. 6x6s for support posts and plywood. the predominant species of treated wood is a regionally available softwood.
span tables for deck joists, deck beams, and deck flooring, giving. deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck if you see a deck framed with 2x8 pressure treated lumber typically southern yellow pine or syp , spaced 16' o.c.,.
using a strip of plywood can actually be a little better on longer boards because it allows you to increase the gap; and it stays in place better if you need to pry a warped board into alignment with another board. green vs. kdat. green/wet pressure treated lumber actually feels a little moist to the touch. it will dry with time after installation.
deck beam span table deck joist span table deck joist rule of thumb deck and porch if you see a deck framed with 2x8 pressure treated lumber typically outdoor wood project specifications - jon eakes use larger lumber but what a span table tells you is the maximum distance for conditions that you would find for a deck in canada. pressure treated wood.
the irc deck joist span table serving north marin and west sonoma counties in the san francisco north bay area of northern california this span table takes into account the joists are being used in exterior applications and how the wet conditions can reduce the strength of lumber so the maximum spans allowed are less than the above table that we
how far can you span a 2x6 deck joist? in general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. at those prices: a 16x20 foot deck made with pressure-treated wood would cost $9,600 to $11,200. a 20x20 deck using the same material would cost $12,000 to $14,000. see full answer. 17.
you will find that 2x6's in ponderosa, red, and jack pine are more dimensionaly stable than any thing in syp. all syp treated boards will vary in width from 1/4-1/2 inch. using 2x6's w/ shorter spans means more footings= better weight distribution and absolutely no bounce. you will find that there is little or no difference in cost to frame.
a double 2x12 beam can span 12 feet; a 2 2x10 can span 10 feet and so on. dimensional lumber deck beam span chart the numbers in gray indicate the distance between the support posts.
up vote 17 down vote accepted. 1x stock is fine if you have 16 inch on center joists, and the joists are themselves sized properly. using 2x stock over undersized joists does help make the deck feel more solid. if you have 24 oc joists, i'd definitely stay with the 2x decking.
assuming that you are using treated pine decking, the following spans 2x6 and tongue and groove boards at 90 spaced 16 o.c. deck joist span 0 online service deck joist span table.
size 2x6 24'oc 2x6 16'oc 2x8 24'oc 2x6 16'oc 2x8 24'oc 2x8 16'oc 2x10 24'oc 2x8 16'oc 2x10 24'oc 2x8 16'oc 2x10 24'oc treated for weather and/or ground exposure. microsoft word - deck span table.doc author: fred created date: 12/2/2005 8:27:08 am
decks get wet and may be framed with incised treated lumber so spans may have to be adjusted. until a few years ago, the irc didnt have deck joist span tables. but the 2015 irc included a new one table r507.5 that will make it easy for deck builders to spec a joist size for a given span and joist spacing.
the joist size in the above table. as far as redwood framing with the pith content in 2nd growth i'd only use 1 heartwood not 2 as in the table. the cantilever overhang can be 1/4 the joist length, but again i would keep that to 2'-6 max. for 2x8. deck loading has a tendency for the people to gather at the railing. so i typically don't go beyond that.
wood is a beautiful and natural material. as such, it can shrink or swell, depending on the climate where you live. the kind of treated lumber you use will determine how you space your decks
joist: 2x10 if joists are spaced: 24' span: 13 1/2' decking. decking boards span from joist to joist. if you use 5/4 decking, joists must be no farther apart than 16 inches. decking made of 2x4s or 2x6s can span up to 24 inches. if you will run decking at an angle, you may need to put the joists closer together; know your local codes.