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.

Floor Joist Capacities

Sponsored Links

Floor Joist Capacities - max working load 3.0 kN/m2

Floor joist capacities for timber grade C 18, C 24 and C 30 - joist center space ranging 300 to 600 mm - are indicated in the diagram below.


Floor Joist Capacity - max working load 2.0 kN/m2

Floor joist capacities for timber grade C 18, C 24 and C 30 - joist center space ranging 300 to 600 mm - are indicated in the diagram below.

The strength classes C 16, C 24 and C 30 referes to Eurocode 5 and BS 5268.

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 - Fixed at Both Ends - Continuous and Point Loads

Stress, deflections and supporting loads.

Beams - Fixed at One End and Supported at the Other - Continuous and Point Loads

Supporting loads, moments and deflections.

Beams - Supported at Both Ends - Continuous and Point Loads

Supporting loads, stress and deflections.

Building Foundations - Loads

Typical loads on building foundations.

Concrete Slabs - Load Capacities

Load capacity of simply supported concrete slabs.

Floor Vibrations

Human activities like walking, running and dancing - and operating machines - can introduce floor vibrations due to resonance.

Floors - Live Loads

Floors and minimum uniformly distributed live loads.

Horizontal Roof Rafters - Maximum Spans

Douglas Fir in horizontal roof rafters and maximum spans.

Low-Frequency Vibrations Effects on Building Constructions

Effects of low-frequency vibrations on building constructions.

Maximum Floor Joist Span

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

Typical Floor Loads

Uniformly and concentrated floor loads

W Steel Beams - Allowable Uniform Loads

Allowable uniform loads.

Wood Beams - Strength of Material

Bending and compression strength of wood species used in beams.

Wood Headers - Max. Supported Weight

Weight supported by a double or triple wood headers.

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.