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how much wood for a cutting board?

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Forum topic by clm42 posted 04-05-2013 08:11 AM 1448 views 0 times favorited 12 replies Add to Favorites Watch
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clm42

3 posts in 599 days


04-05-2013 08:11 AM

Topic tags/keywords: cutting board

If I was going to go to the mill and order some sugar maple how much should I ask for? I want to know how to figure it out so that I can do it again in the future. I want to make a jumbo size board, like 20×30x1.5. Its actually going to have a hook on one end to attach to a duplicate one my parents will have. You need a big board to butcher a whole pig on.


12 replies so far

View MisterBill's profile

MisterBill

337 posts in 972 days


#1 posted 04-05-2013 11:05 AM

6.25 board feet plus waste.

View kdc68's profile

kdc68

2011 posts in 997 days


#2 posted 04-05-2013 11:26 AM

T x W x L /144 = bd. ft.

-- Measure "at least" twice and cut once

View camps764's profile

camps764

802 posts in 1080 days


#3 posted 04-05-2013 12:03 PM

suppose it is going to depend on if it is an end grain board or long grain. It will also depend on the thickness you can get out of the stock you are ordering. (E.G. if you are order 4/4 stock you are going to need to double your numbers to get yourself to thickness)

Doing the math in my head quick I think Mister Bill is in the ball park.

Just remember that a board foot is 12”x12”x1”

6 board feet will get you to the 20×30 with some overage (6 board feet =24”x36”x1”)

You will want to double that to get your thickness. I would order 8/4 (2 inch thick) stock so you have some room to mill it to final dimensions.

So to answer your question – I would order 12 board feet of 8/4 stock. (24”x36”x2”) This will account for your saw kerfs/milling to final dimensions.

Other Jocks please feel free to chime in and correct me if my calculations aren’t right.

You can also use the calculator here http://extension.missouri.edu/scripts/explore/G05506.asp to figure out total number of board feet needed.

-- Steve. Visit my website http://www.campbellwoodworking.com

View jasoncarpentry's profile

jasoncarpentry

115 posts in 1375 days


#4 posted 04-05-2013 01:00 PM

However you figure it, especially if it’s end-grain w/ lots of cuts, don’t forget to subtract your kerf thicknesses!

-- Jim in Tennessee

View bondogaposis's profile

bondogaposis

2689 posts in 1072 days


#5 posted 04-05-2013 01:04 PM

It comes out to 6.25 bf for the finished product. However, you are going to have to allow for saw kerf, planing etc. and since you are going to have to buy 8/4 stock to get a finished thickness of 1.5” I come up w/ 8.3 bf and I always like to allow 20% for waste, screw ups, etc. so that comes out to 10bf of 8/4 stock. So you see I pretty much agree w/ camps764, except he is allowing a little more for waste.

-- Bondo Gaposis

View lumberjoe's profile

lumberjoe

2847 posts in 969 days


#6 posted 04-05-2013 01:27 PM

You don’t need 8/4 for a finished 1.5” thickness. I’ve probably made in excess of 50 cutting boards, most are around 1 1/2” to 1 3/8” thick and have only used 4/4 stock.

-- www.etsy.com/shop/KandJWoodCrafts

View clm42's profile

clm42

3 posts in 599 days


#7 posted 04-05-2013 02:14 PM

How would making the board end grain make a difference? If I got 4/4 I could just make my cuts at 1.5 inches and that would give me my thickness without having to plane or re-saw a half inch off. I guess could do that with 8/4 too though. I should have specified that this would be end grain in the post.

View lumberjoe's profile

lumberjoe

2847 posts in 969 days


#8 posted 04-05-2013 04:50 PM

Your “squares” will be tiny. I cut my long pieces at 1.5 inches, glue the faces together, then cut that into 1.5” strips.

What everyone is telling you is that you are going to be turning a lot of your wood to sawdust with an endgrain board. If you use a full kerf 1/8” blade, every 8 strips you cut you are going to lose an inch of length. If I were making a 20×30 end grain board, My initial glue-up would be about 20×35 to account for the blade kerf waste and that last piece that is always too short to cut safely.

-- www.etsy.com/shop/KandJWoodCrafts

View clm42's profile

clm42

3 posts in 599 days


#9 posted 04-05-2013 05:21 PM

Is there a reason that the board has to made of squares? Could I take a 6 inch wide board and cross cut out into strips and just use the strips without cutting them down anymore than that? That way the board is made of a bunch of wide strips. In this case I would need three six inch strips and two two inch strips for each stripe across.

View lumberjoe's profile

lumberjoe

2847 posts in 969 days


#10 posted 04-05-2013 05:34 PM

There are some good instructions/blogs on here about making end grain boards. Check out a few

-- www.etsy.com/shop/KandJWoodCrafts

View jgoeden's profile

jgoeden

7 posts in 615 days


#11 posted 04-07-2013 10:15 AM

http://www.lastalias.com/cbdesigner/

you will be hooked on making borads when you can design them before wasting wood!!

View camps764's profile

camps764

802 posts in 1080 days


#12 posted 04-07-2013 12:55 PM

Good point Lumberjoe! For an end grain board you would not need 8/4 lumber – you would just do as Joe says.

-- Steve. Visit my website http://www.campbellwoodworking.com

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