WHOLESALE LOGS & LUMBER Inc.

142 Hornertown Road    Scottdale, PA 15683   (724) 887-3020      Fax (724) 887-3021

 

TABLE 2-1 COMMON WOOD CHARACTERISTICS

FOR LOG HOMES

 

RANK

OUT OF

34

34

Species

Workability

Shrinkage

Strengtha

(bending stress at prop. limit)

Weightb

(lbs. per cu. ft.)

Decay

Resistance

Insulationc

(R-factor

per inch)

Uses

2

Balsam

Poplar

Easy

Low

Very weak (5000-6000 psi)

Lt. 26

Low

1.33

Walls

1

*No. White Cedar

Easy

Very low

Very weak

Lt. 22

High

1.41

Walls, post

9

Hemlock

Moderate

Low

Weak

Lt. 28

Low

1.16

Walls

9

Blk. Spruce

Moderate

Low

Weak

Lt. 28

Low

1.16

Walls

5

Basswood

Easy

High

Weak

Lt. 26

Low

1.24

Walls

13

Red Cedar (east)

Easy

Very low

Weak

Mod. 33

High

1.03

Walls, shingles

11

*Red Cedar (west)

Easy

Very low

Weak

Lt. 23

High

1.09

Walls, shingles

14

Redwood

Easy

Very low

Weak

Lt. 28

High

1.00

Walls, shingles

12

Cypress

Moderate

Low

Weak

md. 32

High

1.04

Walls, posts

7

Aspen

Moderate

Low

Weak

(6000-7000psi)

Lt. 26

Low

1.22

Walls

6

Cottonwoods

Moderate

Medium

Weak

Lt. 24-28

Low

1.23

Walls

4

Balsam Firs

Moderate

Medium

Weak

Lt. 25

Low

1.27

Walls

3

*White Pine

Easy

Very low

Fair

(7000-9000 psi)

Lt. 25

Moderate

1.32

General, trim

9

Pond. Pine

Easy

Low

Fair

 

Lt. 28

Moderate

1.16

Walls, trim

8

Jack Pine

Easy

Low

Fair

Lt. 27

Moderate

1.20

Walls

12

Red Pine

Easy

Low

Fair

Md. 34

Low

1.04

Walls, joints

19

Tamarack

Fair

Medium

Fair

Md. 36

Moderate

0.93

General

10

Yellow Poplar

Easy

Medium

Fair

Lt. 28

Low

1.13

General

17

Elm, Soft

Hard

High

Fair

Md. 37

Low

0.97

Fuel, floor

 

 

a   Screw at which timber will recover without injury or permanent deformations.

b   At 12 percent moisture content.

c  Calculations for 12 percent moisture.  Values series greatly with moisture: variation is 45 percent for softwoods and 3 percent for hardwoods (ace USDA FPL handbook No. 72) for moisture ranging from 0-30 percent.  Values given per inch of thickness in direction of heat flow; normal to grain.

*  Wood most frequently used by log home industry and used by WHOLESALE LOGS & LUMBER.