Simply enter the required span to see a range of results that will work.
Floor joist span calculator uk.
The full version allows any size.
These spans were calculated using our floor joist calculation engine.
You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
Calculations to bs 5268 2 2002.
Suitable for uk building regulation approval.
Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine.
This demo version is fixed at 1m clear span.
You will be given a range of depths and centres that are available and also an indicative deflection result.
Floor joist span calculator.
Span tables for domestic floor joists to bs 5268 7 1 note.
Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.
Domestic floor joist calculator.
Select the on center spacing for the joists.
The lowest is a plain ceiling joist with no storage 10 pounds per square foot.
Usually 400 450 or 600mm.
This is how far apart they will be.
Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
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.
Floor joist span tables for surveyors floor construction.
This is the distance between joist centres.
This table uses commonly available uk regularised timber depths.
Also available for the android os.
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.
The highest is a fully loaded floor 70 pounds per square foot.
Try our interactive span checker to find the posi joist suitable for your project.
Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1.
Surveyors and structural engineers use data from tables below to help calculate the size of timbers necessary to give adequate support to timber floors.
Most lay outs are on 16 so the field is pre selected.
This span table is to the format and methodology given in bs 5268 7 1.
Designing with wood beam span tables.
These span tables are the equivalent of other industry standard span tables and are calculated to the same standards.
