Open Web Steel Joist Designer

Enter your project parameters below — we'll select an SJI joist designation and generate an instant price estimate for your Ontario project.

Span ft

Joist spacing ft o.c.

Dead load psf

Live load psf

Application

Project details

Quantity

Steel grade

Camber

Joist designations follow SJI K-Series, LH-Series, and DLH-Series conventions. Pricing estimates are AI-generated based on current Ontario fabrication and delivery market rates. This tool is for budgeting purposes only — all designs must be reviewed and stamped by a licensed Professional Engineer. Contact DeckCo for a formal quotation.