For reinforcing of concrete in bench top I use 3/8″ rebar ( #3) four bars the length of the top and seven bars the width. There should be 7″ between first and second short bars on each end. This will make room for the connecting hardware that will be placed in the concrete as it sets. This hardware is needed to connect the top and legs together for safety.

Rebar for Reinforcing Concrete Bench Mold

Rebar for Reinforcing Concrete Bench Mold

I use cut to length tie wire with a small loop on each end.

Tying Rebar Together

Tying Rebar Together

Pictured is the twister used to tie the bars in place.

Twister Tool for Tying Rebar

Twister Tool for Tying Rebar

When you cut bars to length you should leave about 3/4″ to 1″ clearance from mold. Put some kind of release on all surfaces of the mold and then hang your rebar cage in the mold. It should be in the middle of the mold so you have coverage top and bottom.

Rebar Reinforcing Ready for Hanging in Mold

Rebar Reinforcing Ready for Hanging in Mold

Rebar Reinforcing Hung from Pipes Laid Across Mold

Rebar Reinforcing Hung from Pipes Laid Across Mold

My bench top is 2-1/8″ thick. Do not put release on the rebar because you want it to stick to the concrete.

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