This is how far apart they will be.
Floor joist span calculator uk.
You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
The highest is a fully loaded floor 70 pounds per square foot.
This is the distance between joist centres.
This demo version is fixed at 1m clear span.
This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance.
1 enter joist details 1 1 span and joist spacing.
Domestic floor joist calculator.
Suitable for uk building regulation approval.
The full version allows any size.
Surveyors and structural engineers use data from tables below to help calculate the size of timbers necessary to give adequate support to timber floors.
You will be given a range of depths and centres that are available and also an indicative deflection result.
This span table is to the format and methodology given in bs 5268 7 1.
These spans were calculated using our floor joist calculation engine.
Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine.
Floor joist span calculator.
Most lay outs are on 16 so the field is pre selected.
Floor joist span tables for surveyors floor construction.
Also available for the android os.
Simply enter the required span to see a range of results that will work.
Span tables for domestic floor joists to bs 5268 7 1 note.
Try our interactive span checker to find the posi joist suitable for your project.
Usually 400 450 or 600mm.
Span calculator for wood joists and rafters also available for the android os.
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.
Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1.
Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.
This table uses commonly available uk regularised timber depths.
These span tables are the equivalent of other industry standard span tables and are calculated to the same standards.
Select the on center spacing for the joists.
Designing with wood beam span tables.
There are six choices.
Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
