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How many sheets of ply?

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Forum topic by Bradford posted 03-20-2013 01:37 PM 1439 views 0 times favorited 18 replies Add to Favorites Watch
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Bradford

1434 posts in 2576 days


03-20-2013 01:37 PM

Topic tags/keywords: plywood question tablesaw

I’m building a cubby for my daughter and wanted to calculate how many sheets of ply I would need.
All I found online were dimensional calculators, but they are more for board length.
If anyone knows of a web link that helps, I’d really appreciate it.
Bradford

18”x36”x36” overall
center shelf 34 1/2”
four dividers at 18”

I don’t want to waste wood nor buy too much. I think (5) 48” Square sheets is correct, but I’d like a second opinion, kind of like “measure twice, cut once”. Thanks LJ’s

-- so much wood, so little time. Bradford. Wood-a-holics unanimous president


18 replies so far

View CharlieM1958's profile

CharlieM1958

15817 posts in 2971 days


#1 posted 03-20-2013 01:59 PM

If I’m understanding correctly, you could definitely get that out of no more than 3 half-sheets + 1 quarter-sheet.

Two half-sheets would cover the four sides, right?
One piece would suffice for the four dividers.
A quarter-sheet would give you the center shelf.

Am I missing anything?

-- Charlie M. "Woodworking - patience = firewood"

View Marcus's profile

Marcus

1081 posts in 773 days


#2 posted 03-20-2013 03:20 PM

Bradford -

Any chance you have a quick sketch of what you’re after. I’m with Charlie, its a bit hard to visualize with the info given.

View MT_Stringer's profile

MT_Stringer

2120 posts in 1984 days


#3 posted 03-20-2013 03:59 PM

I think you could possibly get more bang for your buck if you bought a 4×8 sheet of plywood and ripped it into 15 1/2 inch widths.

One strip would make the 36 inch sides with enough left over for a divider.

Cut and rip the others for your center shelf and the dividers.

Efficient use of the wood would work as long as you keep your rips less than 16 inches. That allows for the thickness of your blade and to trim off the rough outer edge of the plywood.

Dado the backs and add a 1/4 inch piece of Birch plywood and it should be nice and sturdy and last a long time.

Here is one of my projects that is similar to what you are talking about.

Hope this helps.
Mike

-- Handcrafted by Mike Henderson - Channelview, Texas

View CharlieM1958's profile

CharlieM1958

15817 posts in 2971 days


#4 posted 03-20-2013 04:08 PM

Mike brings up a good point.

I thought about suggesting whole sheets, but I assumed the transportation and/or handling was a problem you were trying to avoid. Still, regardless of what size pieces you are willing to work with, the best way to maximize your cost efficiency is to tailor your project dimensions to your material size rather than the other way around.

-- Charlie M. "Woodworking - patience = firewood"

View MT_Stringer's profile

MT_Stringer

2120 posts in 1984 days


#5 posted 03-20-2013 04:56 PM

@OP – if you are buying your lumber at one of the big box stores, they will cut it for you. Just ask them. I have seen a sign where it stated a max of 2 cuts free.

So…you cold get them to cut a full sheet into three pieces – 2 @ two 36 inches. Then you could haul it easier and rip it easier also.

Just thinking out loud today. Hope this helps.

-- Handcrafted by Mike Henderson - Channelview, Texas

View pintodeluxe's profile

pintodeluxe

3570 posts in 1566 days


#6 posted 03-20-2013 05:11 PM

One more sheet that you figure. Always one more sheet.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View CharlieM1958's profile

CharlieM1958

15817 posts in 2971 days


#7 posted 03-20-2013 05:42 PM

@Mike: One time, before I owned a truck, I made the mistake of letting the box store cut a sheet of plywood for me. The blade on their panel saw was so bad that I lost an inch of material on either side of the cuts to splintering. Luckily, I had material to spare, and was only letting them cut it so I could transport it easily.

-- Charlie M. "Woodworking - patience = firewood"

View a1Jim's profile

a1Jim

112936 posts in 2330 days


#8 posted 03-20-2013 06:02 PM

This might help

http://maxcut.soft32.com/

-- http://artisticwoodstudio.com Custom furniture

View waho6o9's profile

waho6o9

5301 posts in 1330 days


#9 posted 03-20-2013 06:10 PM

Maybe sketch a drawing of what you want and that of a sheet of plywood.

Mark out your partitions, shelves, etc. Take into account the blade thickness,
and joinery, etc.

If the lumber store is close by I’d start off with 2 sheets. Lowes has partial sheets of
plywood available as well. This could make your 4 – 18 inch dividers.

HTH

View AandCstyle's profile

AandCstyle

1486 posts in 1010 days


#10 posted 03-21-2013 01:59 AM

I agree with Jim, use maxcut. It is free for 30 days of use IIRC.

-- Art

View MT_Stringer's profile

MT_Stringer

2120 posts in 1984 days


#11 posted 03-21-2013 02:14 AM

”@Mike: One time, before I owned a truck, I made the mistake of letting the box store cut a sheet of plywood for me. The blade on their panel saw was so bad that I lost an inch of material on either side of the cuts to splintering. Luckily, I had material to spare, and was only letting them cut it so I could transport it easily.”

OUCH!

-- Handcrafted by Mike Henderson - Channelview, Texas

View Bradford's profile

Bradford

1434 posts in 2576 days


#12 posted 03-21-2013 10:26 AM

Thanks to all who responded. I only have a car for transport of cut panels. I looked at MT Stringer’s project, mine is double the size if you stack two of his. I going to that MAXCUT link to check it out. Thanks A1Jim. And PintoDeluxe, yes I always buy more wood than need, that’s why I have a piece of every board that I ever bought,(leftovers). I will include a picture of my draw up in a little while….....A lot of excellent info.

If I can be patient and wait, the correct info always comes from LJ’s. It drives my nuts searching the net for specific info. So again THANKS to all. You are truly my friends.

-- so much wood, so little time. Bradford. Wood-a-holics unanimous president

View Bradford's profile

Bradford

1434 posts in 2576 days


#13 posted 03-21-2013 01:30 PM

Kreg Pockect Hole System
I included a draw up of the “BAG CUBBY” I hope it imported correctly. Cheers!

-- so much wood, so little time. Bradford. Wood-a-holics unanimous president

View CrazeeTxn's profile

CrazeeTxn

150 posts in 703 days


#14 posted 03-21-2013 04:04 PM

Bradford -

Check out http://cutlistplus.com/features.aspx They have a free version (no trial) that will let you put up to 5 parts. I used it for a while then upgraded to the $90 version once I figured it out. Once you have your lumber dimensions loaded, you put in your parts and it shows you a diagram of cuts and how to make them. Lets you add for waste, kerf, etc.

Pretty neat little program.

View canadianchips's profile

canadianchips

1836 posts in 1750 days


#15 posted 03-21-2013 05:21 PM

Design questions:
Wondering Why you want 18” depth….....16” depth will maximize a sheet of plywood.
Next question 36” x 36”.......Wood a cabinet 32” x 32” work…....once again maximizing a 4×8 sheet better.
32+32+32 = 96
16+16+16 = 48
If you can readjust measurements a little you will utilize 1 sheet much better !
“Just my opinion”

-- "My mission in life - make everyone smile !"

showing 1 through 15 of 18 replies

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