SpanFinder.com.au
Use the live SpanFinder calculator to compare preliminary joist and bearer options by required span, deck height, dead load, joist spacing, FLW and span type.
The finder shows published product spans and margin against the required span. A result with positive margin may be suitable for preliminary selection, but the original table and site-specific conditions still need checking.
The live calculator remains the source of product matching. This page exists to explain the tool and capture deck span calculator search terms.
A deck span calculator uses inputs such as span, spacing, load and material to help compare likely joist or bearer options.
The current live finder uses deck height, covering dead load, required span, joist spacing or FLW, span type and product filters.
No. It is a preliminary selector built around published span-table rows and must be checked against original sources.
A heavier decking system increases permanent load, so allowable span can reduce in the source tables.
Deck height can change the live load requirement and may also trigger other design and approval considerations.