Posi rafters are becoming increasingly popular for roof applications.
Posi joist roof span tables.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2.
Easy access for services on site also means the structural integrity of your design can t be compromised.
Posi joists can incorporate a trimmable end incorporating a solid timber block which can be engineered to give up to 130mm allowance at each end for trimming on site.
Try our interactive span checker to find the posi joist suitable for your project.
They can even be curved to create a dynamic roof line effect.
Simply enter the required span to see a range of results that will work.
Spans are for guidance only.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Due to variations in timber grades load sets support conditions and bearing widths the tables are not suitable as a design tool.
Mitek s posistruts are the perfect engineered solution and can even be trimmed to length on site.
The following easi joist span tables are to be used as a basic guide to achievable joist span for given depth and spacing and should be used for estimating of feasibility only.
Drilling through solid timber beams isn t the ideal scenario.
Posi joist combines the lightness of timber with the strength of the posi strut steel web allowing you to span far greater distances than would be possible with alternative timber products.
In addition end details of the posi joist can be altered to give a variety of support conditions.
Posi joists mitek manufactures the steel webs used in posi joists.
You will be given a range of depths and centres that are available and also an indicative deflection result.
Flat roof joists rafters purlin span tables for domestic floor joists to bs 5268 7 1 note.
For definitive information please contact an easi joist manufacturer.
View joist rafter tables.
Find a manufacturer there are numerous easi joist manufacturers across europe.
This gives you unequalled design freedom across a wide range of applications for both floor and roof in.
