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Anthony Lumber Span Calculator

Welcome to the Anthony Forest Products Company Powerful Solutions™ Lumber Span Calculator. Simple clicks on the drop down boxes will allow variable inputs to calculate a span. Changing member types automatically sets new defaults to the most common deflection limits, member spacing, and loading conditions. Clicking on the Grade/Span Comparison calculator bar will allow size comparisons between different grades of Southern Pine. There is also a wet use (treated lumber) toggle to enable calculation of deck joist spans.

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