Convert floor joist dimensions to maximum span capacity by wood species and spacing.
Convert floor joist size to maximum allowable span based on wood species, spacing, and load requirements. Covers 2x6 through 2x12 joists.
Copy the code below and paste it into your website or blog. The calculator will work directly on your page.
We use cookies for analytics and ads to improve your experience. Your calculator data stays in your browser — we never collect it.