WoodDimensional4 board feet

2x3x8 — Weight and Board Feet

A 2x3 cut to 8 ft: 4 board feet of nominal section, and 0.2083 cubic feet of actual material to carry. Weight depends on the species, so it is tabulated below.

Quick specification2x3x8

Nominal size2 × 3 in
Actual size (dry)1.5 × 2.5 in (38.1 × 63.5 mm)
Length8 ft (96 in)
Board feet4 bd ft
Actual volume0.2083 ft³
Weight (Spruce (Sitka))5.59 lb (2.54 kg)
Weight per foot0.699 lb/ft

Board feet is a nominal-section convention; volume and weight use the actual section. The two are not interchangeable and are not meant to agree.

Weight by speciesall species in the database, lightest first

Wood database
SpeciesDensity2x3x8 weight
Balsa0.16 g/cm³2.08 lb · 0.94 kg
Cedar (Western Red)0.37 g/cm³4.81 lb · 2.18 kg
Poplar (Yellow)0.42 g/cm³5.46 lb · 2.48 kg
Basswood0.42 g/cm³5.46 lb · 2.48 kg
Redwood0.42 g/cm³5.46 lb · 2.48 kg
Spruce (Sitka)0.43 g/cm³5.59 lb · 2.54 kg
Cedar (Eastern Red)0.47 g/cm³6.11 lb · 2.77 kg
Hemlock (Western)0.47 g/cm³6.11 lb · 2.77 kg
Cypress (Bald)0.48 g/cm³6.24 lb · 2.83 kg
Fir (Douglas)0.53 g/cm³6.89 lb · 3.13 kg
Pine (Southern Yellow)0.55 g/cm³7.15 lb · 3.24 kg
Mahogany (Honduran)0.55 g/cm³7.15 lb · 3.24 kg
Cherry (Black)0.56 g/cm³7.28 lb · 3.3 kg
Larch0.58 g/cm³7.54 lb · 3.42 kg
Teak0.63 g/cm³8.19 lb · 3.71 kg
OSB (Oriented Strand Board)0.65 g/cm³8.45 lb · 3.83 kg
Walnut (Black)0.66 g/cm³8.58 lb · 3.89 kg
Ash (White)0.67 g/cm³8.71 lb · 3.95 kg
Birch Plywood0.68 g/cm³8.84 lb · 4.01 kg
Birch (Yellow Birch)0.69 g/cm³8.97 lb · 4.07 kg
Bamboo0.7 g/cm³9.1 lb · 4.13 kg
Maple (Hard Maple)0.705 g/cm³9.17 lb · 4.16 kg
Beech (American)0.72 g/cm³9.36 lb · 4.25 kg
Oak0.75 g/cm³9.75 lb · 4.42 kg
MDF (Medium Density Fibreboard)0.75 g/cm³9.75 lb · 4.42 kg
Hickory0.82 g/cm³10.66 lb · 4.84 kg
Rosewood (East Indian)0.85 g/cm³11.05 lb · 5.01 kg
Ipe1 g/cm³13.01 lb · 5.9 kg

Weights are derived, not quoted: density at about 12% moisture content × actual volume. Treat them as a floor — green stock stays heavier until it dries. The spread across species is roughly six to one, so a freight or support estimate that assumes one figure for “a 2x3” can be wrong by a large margin.

Board feet explainedhow 4 bd ft is arrived at

A board foot is 144 cubic inches of nominal section — a board an inch thick, a foot wide and a foot long. Lumber is bought and sold on that basis, so the calculation uses the nominal thickness and width rather than the dressed ones:

(2 × 3 × 8 × 12) ÷ 144 = 4 board feet

The rated price therefore covers more wood than is delivered, which is the long-standing convention rather than an error. The actual volume of material in the same piece is 0.2083 cubic feet.

Lengthhow 8 ft compares with the rest of the table

LengthBoard feetActual volumeWeight (Spruce (Sitka))
2x3x630.1562 ft³4.19 lb
2x3x840.2083 ft³5.59 lb
2x3x1050.2604 ft³6.99 lb
2x3x1260.3125 ft³8.39 lb
2x3x1470.3646 ft³9.79 lb
2x3x1680.4167 ft³11.19 lb

Frequently asked questionsabout a 2x3x8

How much does a 2x3x8 weigh?

In Spruce (Sitka), about 5.59 lb (2.54 kg). Across the species in this database it ranges from 2.08 lb in Balsa to 13.01 lb in Ipe.

How many board feet is a 2x3x8?

4 board feet, calculated from the nominal section: (2 × 3 × 96) ÷ 144.

What are the actual dimensions of a 2x3x8?

1.5 × 2.5 inches in section, 8 ft long — 38.1 × 63.5 millimetres by 8 feet. The nominal 2 × 3 inch call size is the rough green section.