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Cable Tray Slope & Fabrication Calculator

Calculate V-cut dimensions, bolt positions, slope length, and hanger spacing. SVG diagram for on-site marking.

STEP 1

Bend Direction + Tray Specs

Side rail height (usually 100mm)

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What is the Cable Tray Slope & Fabrication Calculator?

The Cable Tray Slope & Fabrication Calculator is a field-ready tool for electrical construction workers who need to quickly calculate V-cut dimensions, bolt hole positions, slope length, and hanger spacing for inclined cable tray installations. Select the bend direction (vertical or horizontal), choose a preset angle (30ยฐ/45ยฐ/60ยฐ) or enter measured height and distance manually, and the tool instantly outputs V-cut half width, full width, marking interval A, and a to-scale SVG fabrication diagram you can use with a measuring tape on-site. Warnings are shown automatically for vertical risers, angles above 45ยฐ, and V-cut widths exceeding 80% of the reference dimension. Hanger spacing is calculated using KEC field practice guidelines, accounting for tray width, slope angle, and installation environment. All results can be copied in one tap to share with your team.

Common Use Cases

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V-Cut Dimensions On-Site
Before grinding a V-cut into a tray, get the exact half-width and full-width in millimeters. The tool automatically selects the correct reference dimension โ€” side height for vertical bends, tray width for horizontal bends โ€” so there is no guesswork.
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SVG Diagram for Direct Marking
The SVG fabrication diagram shows V-cut lines, bolt hole circles (ร˜14), and the center reference line to scale so you can hold your phone next to the tray and mark directly with a tape measure. No printing or separate app required.
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Slope Length and Elbow Selection
Enter height and distance or select a preset angle to get the actual slope length with 5% and 10% safety margins, and the correct standard elbow size (10ยฐ to 45ยฐ) automatically recommended from your calculated angle.
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Hanger Spacing Planning
Select the tray width and installation environment to compute the recommended hanger interval per KEC guidelines, combining base spacing, slope angle factor, and environment factor. Copy all results at once to share with your crew.

How to Use

  1. 1
    STEP 1 โ€” Direction & Specs
    Choose vertical bend (tray slopes up/down) or horizontal bend (tray changes direction on a flat plane). Then select the tray width and side height from the dropdowns. These determine the V-cut reference dimension automatically.
  2. 2
    STEP 2 โ€” Angle Input
    In Preset mode, tap 30ยฐ, 45ยฐ, or 60ยฐ and enter the height H in meters โ€” slope length and horizontal distance are computed automatically. In Manual mode, enter measured H and L directly. Enter L=0 for a vertical riser segment.
  3. 3
    STEP 3โ€“5 โ€” Results and Diagram
    STEP 3 shows slope angle, length, and elbow recommendation. STEP 4 shows V-cut half width, full width, marking interval A, and bolt hole positions. STEP 5 shows the SVG diagram โ€” hold your phone next to the tray and mark it directly.
  4. 4
    STEP 6 โ€” Hanger Spacing & Copy
    Select the installation environment (indoor, outdoor/corrosive, or vibration) to get the recommended hanger interval. Tap "Copy all results" to copy every calculated value to your clipboard and share with your team instantly.

Frequently Asked Questions