Metal · Cutting · Rebar cutting list
Rebar cutting list: the stock bars for a list of cut lengths
The cut lengths must already include hooks, bends and laps. This page does not work them out: it lays the lengths you give it out on stock bars. It does not replace the bar schedule of the project.
What it does and how it is worked out
The cut lengths must already include hooks, bends and laps. This page does not work them out: it lays the lengths you give it out on stock bars. It does not replace the bar schedule of the project.
Type the cuts of your rebar job and the page lays them out on the fewest bars, with what is left of each one. Free, in the browser and on a phone. The list below is an example, the straight bars of a small slab, both ways, 240 × 120 in: 30 pieces on 20 bars of 240 in, 99 % of the bar used. Clear it and put in your own cuts.
- bars
- —
- used
- —%
- waste
- —%
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The example of this page, worked out
The list the page opens with is an example, not anybody's order: the straight bars of a small slab, both ways, 240 × 120 in. Every length comes from the outside sizes of the job, and the figures are the optimiser's own, worked out by the same code as the tool above, on bars of 240 in with a 0 in cut and 0 in trimmed off each end.
| What the optimiser answers | Figure |
|---|---|
| Bars to buy | 20 |
| Pieces | 30 |
| Bar used | 98.8 % |
| Waste: blade, trim and short ends | 1.3 % |
| Offcuts worth keeping, 12 in or more | 10 · 10.0 ft |
Long barCross bar
The cutting list of the example
| Piece | Qty | Length, in |
|---|---|---|
| Long bar | 10 | 234 |
| Cross bar | 20 | 114 |
The same list on the main optimiser, with other bar lengths and your own offcuts: open it there.
What to watch: rebar job
- Cut lengths in, stock bars out. Put in each cut length with how many there are, and the length of the bar you buy: the page says how many bars, which cuts come from each, and what is left. The bar is 20 ft here; change it to 40 or 60 ft in the bar's box. A shear takes no kerf: the example has 0 in.
- Hooks, bends and laps are yours to add. The cut length of a bent bar is longer than what the drawing shows, by what its hooks, bends and laps take: that comes from the bar schedule of the project and from the code it follows (ACI 318 and the CRSI detailing practice in the United States). The example is straight bars only.
- One size at a time. A list is one bar size: do #4 and #5 as two lists. The weight of each size is in the rebar sizes and weights table.
- Your bar, your blade, your trim. The example is on bars of 240 in with a 0 in cut and 0 in trimmed off each end. Set the bar your supplier sells and the width of your blade: the plan is worked out again as you type, and so is what is worth keeping (12 in or more here).
Templates: rebar job
Example sizes, not a standard: load one into the list above, then change each length to yours. Loading one replaces the list; nothing is sent and no email is asked for.
| Template | Pieces | Bars | Used | |
|---|---|---|---|---|
| A strip footing, 19 ft × 2 ft | 21 | 4 | 99.4 % | Load |
| A slab 18 ft × 12 ft, bars at 8 in | 45 | 45 | 100.0 % | Load |
Bars and bar used on bars of 240 in, as the optimiser works them out. What the bars weigh: metal weight calculator.
Questions people ask
- How many bars does a rebar job take?
- The example on this page, the straight bars of a small slab, both ways, 240 × 120 in, is 30 pieces and takes 20 bars of 240 in with a 0 in cut and 0 in trimmed off each end: 98.8 % of the bar is used and 10 offcuts are worth keeping. Put in your own cuts and the page works out yours.
- Does the rebar cutting list include hooks, bends and laps?
- No. The page takes the cut lengths as you give them and lays them out on stock bars; it does not calculate hook, bend or lap lengths, and it does not replace the bar schedule of the project. The example, a slab of 240 × 120 in with straight bars every 12 in and 3 in of cover, is 20 bars of 240 in.