But they all sell 19/32. Big face palm for me. Learned something new.

A 32nd saved here and there and soon it amounts to real money saved!

and!
I can't find 1 inch rebar , in less than a 20 ft. length.

Most wood varies by mill. A 2x4 is not a 2x4 anywhere, anymore.

quote:

Originally posted by bendable:
and!
I can't find 1 inch rebar, in less than a 20 ft. length.

Sounds like you might need this rebar cutter...

I discovered this last summer when I was trying to match the sub-floor in my house. I searched the big box stores and finally resorted to going to a dedicated lumber store. They said they had it so I took a sheet home. There, I discovered it was the same 19/32 stuff that the box stores had but was twice the price.

quote:

Originally posted by gpbst3:
But they all sell 19/32. Big face palm for me. Learned something new.

I'm surprised they actually owned up and called it what it is. For many years now, the thicknesses of plywood have shrunk and are mostly 1/32" less than nominal (some even less). But for the longest time they've clung to the nominal size as what they call it, i.e., 3/4", 5/8", 1/2" which have really been 23/32", 19/32", and 15/32" all that time. You may still find true thicknesses in some products, such as Baltic Birch ply (but it's been a while since I've handled any of that, so it may be shrinking as well).
 
For solid lumber, there is a good explanation for the difference. A 2" x 4" is really that size when it is rough cut at the mill (or used to be), but no one wants rough cut lumber, so it is surfaced to make a nice smooth product. The amount they "steal" when rough cutting and surfacing has been increasing, though. 4/4" lumber used to be surfaced to 13/16" thick, then 3/4", and now 11/16" or even 5/8". The neighbor who just built a shed for my wife said he noticed in some lumber places 2" x 4"s that were actually 1.5" x 3.25".

for every 32 sheets they get to sell a extra one... in the shop we had to put a micrometer and physically check each sheet of material to verify thickness for the CNC ROUTER to make sure that the cutter was not too
shallow and not cut thru or too deep and damage the table top....... ..............drill sgt.

Nothing new. I have a set of these to help deal with it when I want to make a fitted dado/groove that actually fits.

Undersized Router Bits

quote:

Originally posted by Suppressed:
I discovered this last summer when I was trying to match the sub-floor in my house. I searched the big box stores and finally resorted to going to a dedicated lumber store. They said they had it so I took a sheet home. There, I discovered it was the same 19/32 stuff that the box stores had but was twice the price.

Exactly what I was trying to do. Luckily Google saved me from calling the real lumber store. I cut out a little square and took it to Home Depot to verify the size.

I have a late 80's Ryan (big builder, cookie cutter) home. I was concerned they had some special run of plywood to keep costs down that I would never match.

quote:

Originally posted by henryaz:
You may still find true thicknesses in some products, such as Baltic Birch ply (but it's been a while since I've handled any of that, so it may be shrinking as well).

It’s my understanding that true Baltic Birch is measured in mm and not fractions of an inch. I know I was cautioned with that bit of advice when I was proposing mixing Baltic Birch with some other plywood products. I haven’t used much of it as most of the projects where I would have used it would work fine with plywood from Home Depot or Lowe’s that is much more easily obtained.

erj ,
I found 5/8 inch, grade 60, at the local menards,( still in 20' lengths)

but they won't cut it ,
they said NOT to rent a cutter like you have pictured, but to rent a grinder and buy a special blade to make the cuts.

jury is still out on what I am gonna do

it has nothing to do with saving a sheet it's all about the thickness coming out of the sander, no such thing as 3/4, 5/8 or half they are always been under size.

quote:

Originally posted by XLT:
it has nothing to do with saving a sheet it's all about the thickness coming out of the sander, no such thing as 3/4, 5/8 or half they are always been under size.

I have to politely disagree about the "always" part. I can recall building cabinets in the 1970's, when a 3/4" piece of plywood actually fit well in a 3/4" dado (using a stacked dado set).

quote:

Originally posted by henryaz:

quote:

Originally posted by XLT:
it has nothing to do with saving a sheet it's all about the thickness coming out of the sander, no such thing as 3/4, 5/8 or half they are always been under size.

I have to politely disagree about the "always" part. I can recall building cabinets in the 1970's, when a 3/4" piece of plywood actually fit well in a 3/4" dado (using a stacked dado set).

correct in the 1970's

quote:

Originally posted by XLT:

quote:

Originally posted by henryaz:

quote:

Originally posted by XLT:
it has nothing to do with saving a sheet it's all about the thickness coming out of the sander, no such thing as 3/4, 5/8 or half they are always been under size.

I have to politely disagree about the "always" part. I can recall building cabinets in the 1970's, when a 3/4" piece of plywood actually fit well in a 3/4" dado (using a stacked dado set).

correct in the 1970's

And 2x4's were 2"x4". I own a 4 plex built in 1966 that's CBS construction and took a bathroom down to the studs last year to completely remodel it, it was amazing to see how nice of a wood the 2x4's were made out of. Makes that crap you see at Lowe's that's full of knots look like fire wood.

quote:

And 2x4's were 2"x4". I own a 4 plex built in 1966 that's CBS construction and took a bathroom down to the studs last year to completely remodel it, it was amazing to see how nice of a wood the 2x4's were made out of. Makes that crap you see at Lowe's that's full of knots look like fire wood.

The wood in my house built in 1908 is nothing short of amazing. 2x10s , 2x12s, 2x4s are all rough cut and knot free. There are three Douglas fir beams in the basement that measure 8x12"x10'. All heartwood. Its amazing the materials used in this place.

quote:

Originally posted by jimmy123x:

quote:

Originally posted by XLT:

quote:

Originally posted by henryaz:

quote:

Originally posted by XLT:
it has nothing to do with saving a sheet it's all about the thickness coming out of the sander, no such thing as 3/4, 5/8 or half they are always been under size.

I have to politely disagree about the "always" part. I can recall building cabinets in the 1970's, when a 3/4" piece of plywood actually fit well in a 3/4" dado (using a stacked dado set).

correct in the 1970's

And 2x4's were 2"x4". I own a 4 plex built in 1966 that's CBS construction and took a bathroom down to the studs last year to completely remodel it, it was amazing to see how nice of a wood the 2x4's were made out of. Makes that crap you see at Lowe's that's full of knots look like fire wood.

2x4 can be had if you just want them rough sawn im sure the ones in your house are rough. I did a remodel on a house once, we tore the wall open they didnt have long enough 2x4's when the built it so each stud was sitting on a piece of firewood, do what you got to do I guess.