WoodDimensional18.67 board feet

2x8x14 — Weight and Board Feet

A 2x8 cut to 14 ft: 18.67 board feet of nominal section, and 1.0573 cubic feet of actual material to carry. Weight depends on the species, so it is tabulated below.

Quick specification2x8x14

Nominal size2 × 8 in
Actual size (dry)1.5 × 7.25 in (38.1 × 184.15 mm)
Length14 ft (168 in)
Board feet18.67 bd ft
Actual volume1.0573 ft³
Weight (Spruce (Sitka))28.38 lb (12.87 kg)
Weight per foot2.027 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
SpeciesDensity2x8x14 weight
Balsa0.16 g/cm³10.56 lb · 4.79 kg
Cedar (Western Red)0.37 g/cm³24.42 lb · 11.08 kg
Poplar (Yellow)0.42 g/cm³27.72 lb · 12.57 kg
Basswood0.42 g/cm³27.72 lb · 12.57 kg
Redwood0.42 g/cm³27.72 lb · 12.57 kg
Spruce (Sitka)0.43 g/cm³28.38 lb · 12.87 kg
Cedar (Eastern Red)0.47 g/cm³31.02 lb · 14.07 kg
Hemlock (Western)0.47 g/cm³31.02 lb · 14.07 kg
Cypress (Bald)0.48 g/cm³31.68 lb · 14.37 kg
Fir (Douglas)0.53 g/cm³34.98 lb · 15.87 kg
Pine (Southern Yellow)0.55 g/cm³36.3 lb · 16.47 kg
Mahogany (Honduran)0.55 g/cm³36.3 lb · 16.47 kg
Cherry (Black)0.56 g/cm³36.96 lb · 16.76 kg
Larch0.58 g/cm³38.28 lb · 17.36 kg
Teak0.63 g/cm³41.58 lb · 18.86 kg
OSB (Oriented Strand Board)0.65 g/cm³42.9 lb · 19.46 kg
Walnut (Black)0.66 g/cm³43.56 lb · 19.76 kg
Ash (White)0.67 g/cm³44.22 lb · 20.06 kg
Birch Plywood0.68 g/cm³44.88 lb · 20.36 kg
Birch (Yellow Birch)0.69 g/cm³45.54 lb · 20.66 kg
Bamboo0.7 g/cm³46.2 lb · 20.96 kg
Maple (Hard Maple)0.705 g/cm³46.53 lb · 21.11 kg
Beech (American)0.72 g/cm³47.52 lb · 21.55 kg
Oak0.75 g/cm³49.5 lb · 22.45 kg
MDF (Medium Density Fibreboard)0.75 g/cm³49.5 lb · 22.45 kg
Hickory0.82 g/cm³54.12 lb · 24.55 kg
Rosewood (East Indian)0.85 g/cm³56.1 lb · 25.45 kg
Ipe1 g/cm³66 lb · 29.94 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 2x8” can be wrong by a large margin.

Board feet explainedhow 18.67 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 × 8 × 14 × 12) ÷ 144 = 18.67 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 1.0573 cubic feet.

Lengthhow 14 ft compares with the rest of the table

LengthBoard feetActual volumeWeight (Spruce (Sitka))
2x8x680.4531 ft³12.16 lb
2x8x810.670.6042 ft³16.22 lb
2x8x1013.330.7552 ft³20.27 lb
2x8x12160.9062 ft³24.33 lb
2x8x1418.671.0573 ft³28.38 lb
2x8x1621.331.2083 ft³32.44 lb

Frequently asked questionsabout a 2x8x14

How much does a 2x8x14 weigh?

In Spruce (Sitka), about 28.38 lb (12.87 kg). Across the species in this database it ranges from 10.56 lb in Balsa to 66 lb in Ipe.

How many board feet is a 2x8x14?

18.67 board feet, calculated from the nominal section: (2 × 8 × 168) ÷ 144.

What are the actual dimensions of a 2x8x14?

1.5 × 7.25 inches in section, 14 ft long — 38.1 × 184.15 millimetres by 14 feet. The nominal 2 × 8 inch call size is the rough green section.