# Why Is A 4×4 Not 4 Inches?

## What is the actual size of a 4×4?

Nominal vs.

Actual Measurements of Dimension LumberNominal SizeActual Size2 x 121 1/2 x 11 1/4 inches (38 x 286 mm)4 x 43 1/2 x 3 1/2 inches (89 x 89 mm)4 x 63 1/2 x 5 1/2 inches (89 x 140 mm)6 x 65 1/2 x 5 12 inches (140 x 140 mm)14 more rows•Mar 27, 2020.

## Why are wood sizes not the actual size?

The “nominal” cross-section dimensions of a piece of lumber, such as 2 X 4 or 1 X 6, are always somewhat larger than the actual, or dressed, dimensions. … The reason is that dressed lumber has been surfaced or planed smooth on four sides (called S4S). The nominal measurement is made before the lumber is surfaced.

## Are 4×4 actually 3.5×3 5?

TIL Lumber’s advertised size is not its actually size do to drying and planing. A 4″x4″ is actually 3.5″x3. 5″

## Is a 2×6 really 2×6?

In short, 2×6 are referred to as 2×6 because it’s easier to say and understood throughout the industry that we are only referring to its nominal dimensions vs its actual.

## Why is lumber 1/2 inch smaller?

During this process, it shrinks as the moisture in the wood is removed and the wood cells shrink. Once the drying is complete, the boards are then planed to a standard size. Hence, what started out as a 2 x 4 now measures 1 1/2 inches x 3 1/2 inches.

## Is a 4×4 really 4 inches?

Are 4×4 boards really 4″x4″? The short answer is no, they are not. But apparently some people think they should be, and they filed a lawsuit about it against Home Depot and Menards.

## What is half the width of a 2×4?

If the slight difference in width isn’t a problem, consider using a couple of 2x2s instead, it’s much easier (2×2 will be 1.5″ by 1.5″, half of a 2×4 would be 1.5″x1. 75 minus half a blade width if you cut the rip perfectly).

## What is the actual thickness of 3/4 plywood?

The actual thickness is just like it sounds – the actual thickness of the plywood panels you buy, after sanding. Typically, the actual thickness of plywood is 1/32 inch less than the nominal thickness….Thickness in millimeters.Thickness (inch)Thickness (milimeter)3/4”19mm1-1/8”28.6mm1-1/4”31.75mm7 more rows•May 16, 2011

## Why are 2×4’s not 2×4?

In the past, when a timber was called a 2×4 [or “two-by-four”], it actually measured 2 inches by 4 inches. … Because of this extra milling, a 2×4 no longer measures a full 2 inches by four inches. Instead, a 2×4 is really only 1 1/2″ by 3 1/2″.

## How wide is a 1×12?

Nominal vs. Actual1x Lumber1x63/4 x 5-1/21×83/4 x 7-1/41×103/4 x 9-1/41×123/4 x 11-1/42 more rows

## Why is it called 5 4 board?

Five quarters, six quarters, eight quarters. It refers to the thickness of the wood, in quarters of inches. So 5/4 is 1 1/4″ thick, 6/4 is 1 1/2″ thick, and 8/4 is 2″ thick.

## When did 2x4s stop being 2×4?

Size standards, maximum moisture content, and nomenclature were agreed upon only as recently as 1964. The nominal 2×4 thus became the actual 1½ x 3½, imperceptibly, a fraction of an inch at a time. It was a 34 percent reduction in actual volume; as those in the trade would say, it’s “selling air.”

## What is a nominal post?

Post-nominal letters, also called post-nominal initials, post-nominal titles or designatory letters, are letters placed after a person’s name to indicate that the individual holds a position, academic degree, accreditation, office, military decoration, or honour, or is a member of a religious institute or fraternity.

## How much does a 2×4 cost?

1x LumberBoardStud*10’2x32x4\$5.17\$7.652×6\$8.82\$7.65

## Are 4×4 posts actually 3.5×3 5?

no, it is just a bit over 3.5″x3. 5″ for clearance. 2×4 and 4×4 boards are no longer the actual number, but as you state–they are 1/2″ LESS.

## Why is lumber so expensive?

Lumber prices are so high that many builders are holding back on construction. Lumber costs have skyrocketed by almost 200% since the pandemic began. After factories shut down last year due to the pandemic, the demand for new houses outstripped supply.

## Why are boards a half inch short?

Through the drying process, the boards naturally shrink, as moisture leaves the beams. … Without the rough edges, what went in as a 2-by-4 planks of rough-sawn wood is now a tongue-tripping 1.5-by-3.5, having lost approximately ¼-inch on all sides to the planer and drying processes.

## What does 2x4x8 mean?

A board foot is actually a measure of volume of a board. By definition a board foot is one square foot one inch thick. To calculate board footage use the following formulas: Board Footage = thickness in inches x width in inches x length in feet divided by 12.

## How can I make my 2×4 longer?

If you want it to be strong, the simplest way to extend a board is to sister it with other boards. For example, rather than using a 2×4, you could use layered 1×4’s, with the breaks between boards in each layer offset from each other, laminated together with screws every foot and/or glue.

## What is smaller than a 2×4?

Lumber DimensionsNominalActualActual – Metric2″ x 4″1-1/2″ x 3-1/2″38 x 89 mm2″ x 6″1-1/2″ x 5-1/2″38 x 140 mm2″ x 8″1-1/2″ x 7-1/4″38 x 184 mm2″ x 10″1-1/2″ x 9-1/4″38 x 235 mm24 more rows