Floor Joist Span Calculator Uk

This span table is to the format and methodology given in bs 5268 7 1.

Floor joist span calculator uk.

Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1. You will be given a range of depths and centres that are available and also an indicative deflection result. Try our interactive span checker to find the posi joist suitable for your project. Span calculator for wood joists and rafters 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. 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. This demo version is fixed at 1m clear span.

This is the distance between joist centres. Suitable for uk building regulation approval. Floor joist span calculator. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.

Floor joist span tables for surveyors floor construction. Simply enter the required span to see a range of results that will work. 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.

Select the on center spacing for the joists. Surveyors and structural engineers use data from tables below to help calculate the size of timbers necessary to give adequate support to timber floors. This is how far apart they will be. 1 enter joist details 1 1 span and joist spacing.

Most lay outs are on 16 so the field is pre selected. Domestic floor joist calculator. Usually 400 450 or 600mm. There are six choices.

Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. The highest is a fully loaded floor 70 pounds per square foot. This table uses commonly available uk regularised timber depths.

Designing with wood beam span tables. The full version allows any size. Span tables for domestic floor joists to bs 5268 7 1 note. This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance.