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Structural Inspections Contains discussions about the structural portion of a home inspection. This includes foundations, framing, etc.

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  #1  
Old 3/1/10, 3:26 PM
Ben J. Gromicko's Avatar
Ben J. Gromicko Ben J. Gromicko is offline
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Default nails and pennies

I was just asked about nail sizes and pennies. In the U.S., the length of nails is designated by "penny" abbreviated "d". For example a twenty-penny nail (20d) has typically has a length of four inches. See table (attached picture).
nails-and-pennies-nail-sizes-ben.jpg
Talk to you later.
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  #2  
Old 3/1/10, 5:10 PM
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Jeffrey R. Jonas Jeffrey R. Jonas is offline
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Default Re: nails and pennies

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Originally Posted by bgromicko View Post
I was just asked about nail sizes and pennies. In the U.S., the length of nails is designated by "penny" abbreviated "d". For example a twenty-penny nail (20d) has typically has a length of four inches. See table (attached picture).
Attachment 35334
Talk to you later.
Well, if that wasn't half-assed education, I don't know what is!

(just kiddin, Ben)

How about ed-u-ma-catin' us on why the term "penny" is even used, and why a 4" nail is called a 20d, as opposed to... lets say... 4d or 16d ?
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Old 3/1/10, 5:22 PM
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Ben J. Gromicko Ben J. Gromicko is offline
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Default Re: nails and pennies

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Originally Posted by jjonas View Post
Well, if that wasn't half-assed education, I don't know what is!

(just kiddin, Ben)

How about ed-u-ma-catin' us on why the term "penny" is even used, and why a 4" nail is called a 20d, as opposed to... lets say... 4d or 16d ?
Ah... You could probably look that stuff up on a Google search. It all comes from old English way of measuring - 600 nails could be bought for six pence or six penny, etc. yada yada.
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Old 3/1/10, 5:37 PM
Jeffery L. Haynes Jeffery L. Haynes is offline
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Default Re: nails and pennies

Depending on which story you believe, the term penny was derived in England based upon the number of pence you paid for a pound of nail. Being that the larger nails cost more you there for have a larger designation.

The "d" is derived from denarious, a roman coin similar to the penny.

The most common nails you see in construction are the 6d, 8d, 12d, and 16d. Nails over 4"- 20d, are commonly referred to as spikes.

The most common problem you find in regards to home inspections and nails are improper sized and wrong application, especially with common nails being used in pressured treated materials.

Those who do phased inspections can easily pick apart a house if they so choose....especially in regards to exterior sheathing, joist and trust fastening.

Your basic 16d cc fastener has a minimum of 200 # of holding power.... at least according to an engineer that I work with from time to time...... I can also attest that when driven through you hand or foot, which I have done at least a half dozen times with a nail gun........... they are difficult to get out......although I have never measured the force it takes to pull one out, it does in deed hurt.
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Old 3/1/10, 6:22 PM
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Jeffrey R. Jonas Jeffrey R. Jonas is offline
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Default Re: nails and pennies

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Ah... You could probably look that stuff up on a Google search.
Yea... I could of, but what would be the fun in that? Ribbing you is so much more fulfilling!!!
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  #6  
Old 3/1/10, 6:27 PM
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Default Re: nails and pennies

Jeff,

Thanks for the info (BTW Ben, I am familiar with most of it)...

And the testimonial to the holding strength...

Hope none of them were ring-shanked...
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Old 3/1/10, 6:45 PM
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Marcel R. Cyr Marcel R. Cyr is offline
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Default Re: nails and pennies

Might at well add a little history to this topic.

The term “penny”, as it refers to nails, is thought to have originated in medieval England to describe the price of 100 nails. (e.g. 100 3-1/2” nails would cost 16 pence, while 100 2-1/2” nails could be bought for 6 pence.) This system of classifying nails by size according to price was in place by 1477 AD. The letter “d”, which means penny, stands for the Latin name given to Roman Coins, Denarius.
The size of the nail is determined by measuring its length. Nails start at 2d, which is 1” in length, and range up to 60d which is 6” in length. From 2d to 16d the penny length increases by quarter inches. Above 16d, the size increases by half inches. Nails longer than 60d or shorter than 2d are described in inches or fractions thereof.
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Old 3/1/10, 8:05 PM
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James F. McKee James F. McKee is offline
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Default Re: nails and pennies

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Originally Posted by mcyr View Post
Might at well add a little history to this topic.

The term “penny”, as it refers to nails, is thought to have originated in medieval England to describe the price of 100 nails. (e.g. 100 3-1/2” nails would cost 16 pence, while 100 2-1/2” nails could be bought for 6 pence.) This system of classifying nails by size according to price was in place by 1477 AD. The letter “d”, which means penny, stands for the Latin name given to Roman Coins, Denarius.
The size of the nail is determined by measuring its length. Nails start at 2d, which is 1” in length, and range up to 60d which is 6” in length. From 2d to 16d the penny length increases by quarter inches. Above 16d, the size increases by half inches. Nails longer than 60d or shorter than 2d are described in inches or fractions thereof.

amazing what you old guys know...



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Jim Mckee
Amherst, Ohio

www.amhersthomeinspector.com
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  #9  
Old 3/1/10, 8:08 PM
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James F. McKee James F. McKee is offline
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Default Re: nails and pennies

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Originally Posted by jhaynes View Post
Depending on which story you believe, the term penny was derived in England based upon the number of pence you paid for a pound of nail. Being that the larger nails cost more you there for have a larger designation.

The "d" is derived from denarious, a roman coin similar to the penny.

The most common nails you see in construction are the 6d, 8d, 12d, and 16d. Nails over 4"- 20d, are commonly referred to as spikes.

The most common problem you find in regards to home inspections and nails are improper sized and wrong application, especially with common nails being used in pressured treated materials.

Those who do phased inspections can easily pick apart a house if they so choose....especially in regards to exterior sheathing, joist and trust fastening.

Your basic 16d cc fastener has a minimum of 200 # of holding power.... at least according to an engineer that I work with from time to time...... I can also attest that when driven through you hand or foot, which I have done at least a half dozen times with a nail gun........... they are difficult to get out......although I have never measured the force it takes to pull one out, it does in deed hurt.

Jeff if you have driven 16 sinkers through hand or foot at least a half dozen times You might want to think about slowing down just a tad....



Classic Home inspections

Jim Mckee
Amherst, Ohio

www.amhersthomeinspector.com
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  #10  
Old 3/1/10, 8:15 PM
Jae Williams Jae Williams is offline
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Default Re: nails and pennies

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Originally Posted by jmckee View Post
amazing what you old guys know...

Old guys...and Marcel...



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Democracy is two wolves and a lamb.
Liberty is a well-armed lamb. B. Franklin
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  #11  
Old 3/1/10, 8:19 PM
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Marcel R. Cyr Marcel R. Cyr is offline
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Default Re: nails and pennies

Hey, what's all this talk about old guys.?
Jae 's got me beat by a couple of decades.
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  #12  
Old 3/1/10, 8:27 PM
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James F. McKee James F. McKee is offline
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Default Re: nails and pennies

sorry i couldn't help myself....



Classic Home inspections

Jim Mckee
Amherst, Ohio

www.amhersthomeinspector.com
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  #13  
Old 3/1/10, 9:11 PM
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Jeffrey R. Jonas Jeffrey R. Jonas is offline
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Default Re: nails and pennies

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Originally Posted by mcyr View Post
Hey, what's all this talk about old guys.?
Jae 's got me beat by a couple of decades.
Just look at all the wisdom you possess and share with all us youngsters
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  #14  
Old 3/1/10, 9:13 PM
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Marcel R. Cyr Marcel R. Cyr is offline
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Default Re: nails and pennies

Thanks a lot buddy.
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  #15  
Old 3/1/10, 10:52 PM
Jeffery L. Haynes Jeffery L. Haynes is offline
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Default Re: nails and pennies

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Originally Posted by jmckee View Post
Jeff if you have driven 16 sinkers through hand or foot at least a half dozen times You might want to think about slowing down just a tad....

My son asked me the other day why my left hands shakes but not my right............... I told him because its scared of my right hand........... it has a tendency to shoot my left hand when given a chance.

As for as slowing down..... I just keep my tetanus shots updated.
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