Floor Joist Span Calculator Uk

Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1.

Floor joist span calculator uk.

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. There are six choices. Floor joist span tables for surveyors floor construction. This is the distance between joist centres.

This table uses commonly available uk regularised timber depths. 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 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.

The full version allows any size. Simply enter the required span to see a range of results that will work. 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 is how far apart they will be.

These span tables are the equivalent of other industry standard span tables and are calculated to the same standards. This demo version is fixed at 1m clear span. Calculations to bs 5268 2 2002. 1 enter joist details 1 1 span and joist spacing.

Most lay outs are on 16 so the field is pre selected. Also available for the android os. These spans were calculated using our floor joist calculation engine. You will be given a range of depths and centres that are available and also an indicative deflection result.

The lowest is a plain ceiling joist with no storage 10 pounds per square foot. Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine. Select the on center spacing for the joists. Try our interactive span checker to find the posi joist suitable for your project.

Floor joist span calculator. This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. This span table is to the format and methodology given in bs 5268 7 1. Usually 400 450 or 600mm.

Domestic floor joist calculator. Designing with wood beam span tables. Suitable for uk building regulation approval. 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.