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How much cable do I need for identical runs with risers and slack?
Add a vertical section at each end of the floor route and apply slack to the whole run. Each run must be cut from one reel. Round cuts per reel down and reels to buy up. If one run exceeds a full reel, the result shows the length shortfall.
Use the free calculator Get the business edition · €29
Worked example
With the example inputs below, the calculator returns these results.
Cut length per run (m) 29.7
- Horizontal route per run
- 24 m
- Vertical route at each end
- 1.5 m
- Service slack
- 10 %
- Identical runs
- 6 runs
- Cable on one full reel
- 100 m
Other results
- Complete cuts per reel
- 3
- Full reels to order
- 2
- Total cable left after cuts (m)
- 21.8
Use your own figures
Check reel length before buying stock for the stage build. Open the worksheet, replace the example values, then copy or print the result.
AV cable reel cuts →