Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine.
Floor joist caculator.
Home joist span.
It has been my experience to never use a beam smaller than a two ply 2 x 8.
Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.
Home joist span calculator.
The screw count is a bit high at times but this will allow for losing some.
Domestic floor joist calculator.
Use the joist span and spacing calculator below to plug in your desired type of wood the size of your joists and the required spacing between each joist.
Joist size 2x8 2x10 2x12.
The highest is a fully loaded floor 70 pounds per square foot.
1 enter joist details 1 1 span and joist spacing.
Select the on center spacing for the joists.
This demo version is fixed at 1m clear span.
Most lay outs are on 16 so the field is pre selected.
No matter what the specs say.
Also available for the android os.
Floor joist span calculator.
Span calculator for wood joists and rafters also available for the android os.
The full version allows any size.
Usually 400 450 or 600mm but any value can be used up to 610mm max.
The lowest is a plain ceiling joist with no storage 10 pounds per square foot.
For help simply click on the beside the section you need help with or watch this tutorial video.
This is the distance between joist centres.
These small areas are usually door opening on the interior and people are trained that these areas are the strongest.
This calculator matches up with 90 of the applications in the 2012 international residential code book.
While every effort has been made to insure the accuracy of the information presented and special effort has been made to assure that the information reflects the state of the art neither the west coast lumber inspection bureau the american wood council nor its members assume any responsibility for any particular design prepared from this online span calculator.
On center joist spacing 12 16 24 overhang.
To use the joist span calculator below first select the species of lumber you will use for your construction project from the drop down list.
Calculations to bs 5268 2 2002.