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 Headers - Max. Supported Weight

Sponsored Links

Use The Engineering ToolBox Sketchup Extension to insert construction lumber in your 3D models.

Weight supported by a double or triple wood header on two 4" x 4" posts:

Wood Headers - Max. Supported Weight
Span
(feet)

MAx. Weight (lb)
2 x 2" x 6"3 x 2" x 6"2 x 2" x 8"3 x 2" x 8"2 x 2" x 10"3 x 2" x 10"
4 2250 3780 4690 5850 5000 7410
6 1680 2520 3130 4690 5000 7410
8 2660 3990 3760 5640
10 2130 3190 3010 4510
12 2510 3760
Sponsored Links

Related Topics

Beams and Columns

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

Related Documents

Beams - Supported at Both Ends - Continuous and Point Loads

Supporting loads, stress and deflections.

Board Feet Chart and Calculator

Board feet is used as a volume measurement of lumber.

Cantilever Beams - Moments and Deflections

Maximum reaction forces, deflections and moments - single and uniform 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 Lumber - Dimensions

Sizing of hardwood lumber.

Horizontal Roof Rafters - Maximum Spans

Douglas Fir in horizontal roof rafters and maximum spans.

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 - Dimensions

Commercial softwood lumber dimension chart - nominal and actual sizes.

Trusses

Common types of trusses.

US Wood Screws - Nominal Sizes

Wood screws - nominal sizes vs. diameters.

US Wood Screws - Pilot Holes

Hard wood and soft wood pilot holes, shank clearance holes and countersink diameters.

Wood - Compressive Strength vs. Moisture Content

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

Wood Beams - Strength of Material

Bending and compression strength of wood species used in beams.

Wood Columns - Safe Loads

Safe loads for wood columns.

Wood Hardness

Soft and hardwood - the Janka Hardness scale.

Wood Screws - Withdrawal Force

Allowable withdrawal load force.

Wood Species - Densities

Densities of various wood species - apple, ash, cedar, elm and more.

Wood Species - Moisture Content and Weight

Weight of green and air-dried fire wood.

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!

Privacy

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.