Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/

On 12/05/2018 06:55 AM, Frank wrote:
Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/

https://www.engineeringtoolbox.com/a...pes-d_305.html

Same as black iron or steel, unless you get into the copper sizing
variations:

https://www.sizes.com/materials/pipeCopper.htm

Whenever possible I bring a sample of what I'm working with me when
buying plumbing stuff.

On 12/5/2018 10:11 AM, rbowman wrote:
On 12/05/2018 06:55 AM, Frank wrote:
Learned this yesterday.Â* What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/

https://www.engineeringtoolbox.com/a...pes-d_305.html

Same as black iron or steel, unless you get into the copper sizing
variations:

https://www.sizes.com/materials/pipeCopper.htm

Whenever possible I bring a sample of what I'm working with me when
buying plumbing stuff.

That is something I should have done yesterday. All I wanted was a
coupling and figured it was one inch since that was the pipe diameter.
I should have taken my micrometer or a piece of the pipe to the store.

On 12/05/2018 10:09 AM, Frank wrote:
On 12/5/2018 10:11 AM, rbowman wrote:
On 12/05/2018 06:55 AM, Frank wrote:
Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/

https://www.engineeringtoolbox.com/a...pes-d_305.html

Same as black iron or steel, unless you get into the copper sizing
variations:

https://www.sizes.com/materials/pipeCopper.htm

Whenever possible I bring a sample of what I'm working with me when
buying plumbing stuff.

That is something I should have done yesterday. All I wanted was a
coupling and figured it was one inch since that was the pipe diameter.
I should have taken my micrometer or a piece of the pipe to the store.

I don't know if they have them for pipe but the local Ace has sizers
like these hanging in the fasteners section:

http://boltsizeit.com/

These days I approach unknown fasteners with suspicion. Is that really a
6-48 or some sort of metric thing? Life was simpler back in the day
when the only oddballs was the Whitworth stuff on Brit iron.

In article , "frank says...

Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/



It has always puzzled me as to why almost nothing in the building trade
measures what the 'noninal' size is.

What really makes me mad is that common items such as a 2x4 keeps
getting smaller. When you have to make a repair on older buildings you
often have to buy several smaller items to make up the required
thickness.

On Wednesday, December 5, 2018 at 10:27:01 AM UTC-5, Ralph Mowery wrote:
In article , "frank says...

Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/



It has always puzzled me as to why almost nothing in the building trade
measures what the 'noninal' size is.

What really makes me mad is that common items such as a 2x4 keeps
getting smaller. When you have to make a repair on older buildings you
often have to buy several smaller items to make up the required
thickness.

IDK what 2x4's you're buying that keep getting smaller, but the ones I've
been buying have been the same size for 50 years. Ice cream containers,
chocolate bars and such, sure, I see the packaged size change on those,
but not 2x4s.

On Wed, 5 Dec 2018 12:06:51 -0800 (PST), trader_4
wrote:

On Wednesday, December 5, 2018 at 10:27:01 AM UTC-5, Ralph Mowery wrote:
In article , "frank says...

Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/



It has always puzzled me as to why almost nothing in the building trade
measures what the 'noninal' size is.

What really makes me mad is that common items such as a 2x4 keeps
getting smaller. When you have to make a repair on older buildings you
often have to buy several smaller items to make up the required
thickness.

IDK what 2x4's you're buying that keep getting smaller, but the ones I've
been buying have been the same size for 50 years. Ice cream containers,
chocolate bars and such, sure, I see the packaged size change on those,
but not 2x4s.


I think it depends on the grade. If I buy SYP it is usually the
nominal 1.5x3.5 or pretty close but some of those white wood "promo"
studs you see on the end cap at the BORG for about ~$3 a piece are
more like 35mmx85mm or something and about 1/8" smaller than nominal.
Plywood is really the one that was hurt by metric measurements since
it is the next nominal metric under the inch size. The one that is
"almost" 1/2" is really 12mm or at least that is the router bit that
cuts the right dado.

In article ,
says...


I think it depends on the grade. If I buy SYP it is usually the
nominal 1.5x3.5 or pretty close but some of those white wood "promo"
studs you see on the end cap at the BORG for about ~$3 a piece are
more like 35mmx85mm or something and about 1/8" smaller than nominal.
Plywood is really the one that was hurt by metric measurements since
it is the next nominal metric under the inch size. The one that is
"almost" 1/2" is really 12mm or at least that is the router bit that
cuts the right dado.




It was close to 40 years ago I bought some 2x4s at a Lowes store.
Found some nails that would not go through 2 of them. Moves to another
house almost 35 years later and was going to build some shelves. When I
drove the nails into two of them stacked on top of each other, the nails
penetrted about 1/16 of an inch or so. It may have something to do with
the milimeters and inches.

I thought those 8 ft ( really what is it, maybe 92 inches) long were
being cut down a small ammount because some other lumber deminsions were
changed.

On 12/05/2018 04:04 PM, Ralph Mowery wrote:
I thought those 8 ft ( really what is it, maybe 92 inches) long were
being cut down a small ammount because some other lumber deminsions were
changed.

I believe the explanation for that is if you're framing a wall it comes
out to 8'.

Changing dimensions is a sensitive topic. Years ago an architect friend
told me about a technique someone floated out for block wall
construction. iirc, you laid the blocks up dry and then sprayed the wall
with a polymer that worked into the joints by capillary action. The
resulting wall was stronger than the traditional method and much less
labor intensive. The catch was standard door and window assemblies
didn't fit so it was dead even before the mason's union started bitching.

On 12/5/2018 3:06 PM, trader_4 wrote:
On Wednesday, December 5, 2018 at 10:27:01 AM UTC-5, Ralph Mowery wrote:
In article , "frank says...

Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/



It has always puzzled me as to why almost nothing in the building trade
measures what the 'noninal' size is.

What really makes me mad is that common items such as a 2x4 keeps
getting smaller. When you have to make a repair on older buildings you
often have to buy several smaller items to make up the required
thickness.

IDK what 2x4's you're buying that keep getting smaller, but the ones I've
been buying have been the same size for 50 years. Ice cream containers,
chocolate bars and such, sure, I see the packaged size change on those,
but not 2x4s.



Actually, 49 years.
However, it wasn't until 1969 that the U.S. Department of Commerce once
and for all unified lumber sizes across the country. So, the once
full-sized 2x4 was reduced to today's 1-1/2� x 3-1/2� through a
combination of drying, machining, as well as unifying the wide variety
of species used to make the ubiquitous 2x4.

Going back before that, I remember using some that were 3 5/8 x 1 5/8.
That was about 55 years ago.

In alt.home.repair, on Wed, 5 Dec 2018 12:06:51 -0800 (PST), trader_4
wrote:

On Wednesday, December 5, 2018 at 10:27:01 AM UTC-5, Ralph Mowery wrote:
In article , "frank says...

Learned this yesterday. What I measured as one inch pipe was actually
3/4 inch.

https://www.pvcfittingsonline.com/re...e-pvc-is-this/



It has always puzzled me as to why almost nothing in the building trade
measures what the 'noninal' size is.

What really makes me mad is that common items such as a 2x4 keeps
getting smaller. When you have to make a repair on older buildings you
often have to buy several smaller items to make up the required
thickness.

IDK what 2x4's you're buying that keep getting smaller, but the ones I've
been buying have been the same size for 50 years. Ice cream containers,
chocolate bars and such, sure, I see the packaged size change on those,
but not 2x4s.

If one gets fatter, the 2x4s might look smaller.