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Rebar splicing

Peter L | Posted in General Questions on

I’ve seen footing rebar tied it two ways. One was the horizontal bar laying side to side at 24″ overlaps. The other was horizontal bar facing top to bottom at 24″ overlaps.

Which is the right or better way? The top to bottom seemed “cleaner” but not sure which is best?

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  1. Expert Member
    Michael Maines | | #1

    Peter, I think your question is whether it's better to stack rebar side by side, or over/under. If that's the case, it doesn't matter. Table R611.5.4(1) and Figure R611.5.4(1)(page 281) have more info: Basically, each section of bar needs to grip enough concrete to keep it from slipping. Tying the bar does not contribute to the calculated strength. Just make sure your bar is the required distance from the edge of the concrete and you'll be fine.

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