Common lumber dimensions nominal vs.
6 4 wood dimension.
2x4s are not actually 2 inches by 4 inches.
When the board is first rough sawn from the log it is a true 2x4 but the drying process and planing of the board reduce it to the finished 1 5x3 5 size.
For green freshly sawn lumber to be called 4 4 the thicknessin the grading area must be over 1 00 inch.
However lumber does shrink in thickness and.
Why a 2 4 is not always a 2 4 lumber sizes are usually given in nominal measurements.
Dimension lumber can be purchased as dry or green.
A table of lumber sizes that includes the actual lumber dimensions as well as the nominal sizes.
You should be able to yield approximately 1 1 4 thickness after you flatten plane shape or sand your project parts to fit your project.
Dry lumber that has been seasoned or dried to a moisture content 19 or less and green lumber has a moisture content of greater than 19.
Learn more in our blog.
A 6 4 board is called out as six quarter lumber which means the board was 1 1 2 in.
These dimensions are very common among woodworkers and lumber folks.
6 4 is label from a dimension system used in lumber.
3 1 2 x 7 1 4.
4 4 means approximately 1 thick 5 4 means approximately 1 1 4 thick 6 4 means approximately 1 1 2 thick 8 4 means approximately 2 thick 12 4 means approximately 3 thick.
Also known as 6 4 s2s.
3 1 2 x 11 1 4.
This includes softwood hardwood and glue laminated lumber.
Surfaced 2 sides s2s from rough sawn lumber.
If you re pretty snappy with numbers you ve already put together that 4 4 is probably one inch.
For 5 4 1 25 inch.
The rough thickness is the dimension when the board is first cut at the saw mill.
Thick when it was cut from the green log.
What does 4 4 mean in lumber.
So a 6 4 board is 1 1 2 thick however this is the rough thickness.
The actual measurements are the final size.
It means 6 x 1 4 increments of thickness.
In modern lumber practices the boards are no longer exactly 2 x 4 inches when first cut but today s drying and planing methods still leave the board.
The nominal measurements are a board s size before it has been planed smooth surfaced on all 4 sides.
3 1 2 x 9 1 4.
Wood veneer matching adjacent.