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How to use: Rebar Tie Wire Calculator
- Enter slab length and width and the bar spacing.
- Set the wire used per tie and the % of intersections tied.
- Read the total wire length and weight.
Formula
Intersections = nx × ny. Ties = intersections × ratio. Wire length = ties × wire-per-tie; weight uses ~1.6 mm wire.
Rebar Tie Wire Calculator — FAQ
How much tie wire do I need for rebar?
Allow roughly 250–350 mm of wire per tie; the tool totals it from your grid.
Do you tie every rebar intersection?
Often every intersection on edges and ~50% in the field — set the percentage to match.