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

Hardwood Lumber - Dimensions

Sizing of hardwood lumber.

Dimensional lumber made from hardwood varies from the sizes used for softwood. Hardwood lumber dimensional sizes are indicated below:

Hardwood Lumber - Dimensions
Rough SizeNominal SizeActual Dimension (in)
(Inches)(Fraction In)
("quarter")
S1S1)S2S2)
3/8 3/16 (4.8 mm)
1/2   3/8 (9.5 mm) 5/16 (7.9 mm)
5/8   1/2 (13 mm) 7/16 (11 mm)
3/4   5/8 (16 mm) 9/16 (14 mm)
1 4/4 7/8 (22 mm) 13/16 (21 mm)
1 1/4 5/4 1 1/8 (29 mm) 1 1/16 (27 mm)
1 1/2 6/4 1 3/8 (35 mm) 1 5/16 (33 mm)
1 3/4 1 1/2 (38 mm)
2 8/4 1 13/16 (46 mm) 1 3/4 (44 mm)
3 12/4 2 13/16 (71 mm) 2 3/4 (70 mm)
3 1/2 3 1/4 (83 mm)
4 16/4 3 13/16 (97 mm) 3 3/4 (95 mm)
  • 1 inch = 25.4 mm

1) S1S - Surfaced one Side

2) S2S - Surfaced two Sides

Common Hardwood Species

  • Oak
  • Walnut
  • Basswood
  • Beech
  • Birch
  • Butternut
  • Chestnut
  • Cherry
  • Elm
  • Gum
  • Hickory
  • Maple
  • Mahogany
  • Yellow Poplar

Hardwood Grades

  • FAS - First and Second
    • best grade - required for a natural or stained finish
    • at least 6 inches wide and 8 to 16 feet long
    • 83.3% clear wood on the worst face
  • Select - No. 1 Common
    • minimum 3 inches wide and 4 - 16 feet long
    • 66.6% clear wood on the worst face
  • Select - No. 2 Common
  • Select - No. 3 Common

Related Topics

  • Miscellaneous

    Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

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 older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2009). Hardwood Lumber - Dimensions. [online] Available at: https://www.engineeringtoolbox.com/hardwood-lumber-dimensions-chart-d_1462.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































3.27.8

.