Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Wood Beams - Strength of Material

Sponsored Links

Compression and bending strengths of wood species typically used in beams:

Wood Beams - Strength of Material
Wood SpeciesMaximum Stress (psi)
Horizontal Shear
- τ -
Perpendicular to Grain
- σ -
Parallel to Grain
- σ -
Birch, Yellow 1417 1668 477 715 960 1200
Fir, Douglas 1417 1668 417 625 1360 1700
Larch, Western 1417 1668 417 625 1360 1700
Maple, Red 1271 1495 410 615 880 1100
Oak, Black 1369 1610 590 885 920 1150
Pine, Eastern White 1222 1438 223 335 960 1200
Redwood 1320 1553 433 650 1200 1500
  • 1 psi (lb/in2) = 6895 Pa (N/m2)
  • 1 MPa = 106 Pa
Sponsored Links

Related Topics

Beams and Columns

Deflection and stress, moment of inertia, section modulus and technical information of beams and columns.

Related Documents

Continuous Beams - Moment and Reaction Support Forces

Moments and reaction support forces with distributed or point loads.

Floor Joist Capacities

Carrying capacities of domestic timber floor joists - Grade C - metric units.

Floors - Live Loads

Floors and minimum uniformly distributed live loads.

Glue-Laminated Timber - Dimensions

Common sizing of glue-laminated timber.

Hardwood and Softwood Species

Species of hardwood vs. softwood.

HE-A Steel Beams

Properties of HE-A profiled steel beams.

Lumber - Weights

Weights of green, kiln dried and pressure treated lumber boards.

Machine Stress Rated (MSR) and Machine Evaluated (MEL) Lumber

Grading of lumber in North America

Maximum Floor Joist Span

No. 1 and No. 2 Grade of Douglas fir and maximum span floor joists - imperial units

Nails and Spikes - Withdrawal Force

Allowable withdrawal load for nail and spikes.

Softwood and Hardwood - Structural Strength Classes

Strength classes, bending stress and mean density of hardwood and softwood

Softwood Lumber - Grading

Rough lumber, surfaced lumber (dressed), worked lumber, shop and factory lumber and yard lumber.

Structural Lumber - Section Sizes

Basic size, area, moments of inertia and section modulus for timber - metric units.

Structural Lumber - Properties

Properties of structural lumber.

Tree Species - Water Demand

Trees species and relative water demand.

Urban Tree Heights

Height of trees commonly used in towns and urban areas.

Weight of Beams - Stress and Strain

Stress and deformation of vertical beams due to own weight.

Wood - Compressive Strength vs. Moisture Content

Red Spruce, Longleaf Pine and Douglas Fir - moisture content and their compressive strength.

Wood - Density vs. Moisture Content

The density of wood versus moisture content.

Wood Columns - Safe Loads

Safe loads for wood columns.

Wood Headers - Max. Supported Weight

Weight supported by a double or triple wood headers.

Wood Screws - Withdrawal Force

Allowable withdrawal load force.

Wood, Panel and Structural Timber Products - Mechanical Properties

Density, fibre stress, compressive strength and modulus of elasticity of clear wood, panel and structural timber products.

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!


We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.