Worked 300 mm rise at 15°: 1,159.11 mm slope, 1,119.62 mm horizontal reach and 39.5 mm V-notch for a 400 × 150 mm tray. Includes editable 3D.
The available horizontal run is 1600 mm; it includes the lead-in and slope projection, and excludes the final tail.
A 300 mm rise at 15° requires an ideal sloped base length of 1,159.11 mm. It occupies 1,119.62 mm horizontally, leaving a 480.38 mm lead-in inside the stated 1600 mm run.
| Sloped base length | 1,159.11 mm |
|---|---|
| Horizontal reach | 1,119.62 mm |
| Lead-in to A | 480.38 mm |
| Original-stock station B | 1,639.5 mm |
| Full V opening at A | 39.5 mm |
| Opening-side final gap at B | 39.16 mm |
Drag to rotate · pinch or scroll to zoom
Form: close A and open B to level the tail. Toggle the purple connection cover to inspect the opening.
Side-wall layout, repeated on both sides. A is the closing bend; B is the opening bend. Stations are measured along the straight base from its starting end.
Notch height and small openings are enlarged for readability. Use the labelled dimensions; do not measure from the screen.
● Keep base connected
At A, remove the V from both walls and fold upward until its edges meet. At B, slit both walls to the base, then counter-fold to make the tail horizontal. The walls open at B: provide a compatible connection detail; purple shows the gap-cover region, not a specified fastener or plate design.
Ideal thin-sheet geometry: excludes kerf, bend radius, rolled lips, material allowance and connection specifications. This method keeps the base joined at both axes; do not cut across it.
Cable Tray Vertical Offset Calculator & 3D Guide
Geometric estimate and illustrative process. Not a fabrication drawing.
| Rise height | 300.00 mm |
|---|---|
| Bend angle | 15° |
| Tray width | 400.00 mm |
| Side height | 150.00 mm |
| Available horizontal run | 1,600.00 mm |
| Sloped length | 1,159.11 mm |
|---|---|
| Horizontal reach | 1,119.62 mm |
| Lead-in distance | 480.38 mm |
| V half-width d | 19.75 mm |
|---|---|
| V full width 2d | 39.50 mm |
| A / B | 480.38 mm / 1,639.50 mm |
At A, remove the V from both walls and fold upward until its edges meet. At B, slit both walls to the base, then counter-fold to make the tail horizontal. The walls open at B: provide a compatible connection detail; purple shows the gap-cover region, not a specified fastener or plate design.
Ideal thin-sheet geometry: excludes kerf, bend radius, rolled lips, material allowance and connection specifications. This method keeps the base joined at both axes; do not cut across it.
For rise H and angle θ: sloped length = H / sin(θ); horizontal reach = H / tan(θ); lead-in = available run − horizontal reach. Angles are in degrees. These are ideal geometric lengths, not bend allowances.
S = 300 / sin(15°) = 1,159.11 mm. Q = 300 / tan(15°) = 1,119.62 mm. A = 1600 − Q = 480.38 mm. B = A + S = 1,639.5 mm.
2d = 2 × 150 × tan(15° / 2) = 39.5 mm.
B = 1,639.5 mm is measured along the original straight base. The 1600 mm run is a horizontal projection of the formed tray. They are different measurements, so do not put the projected run onto the straight blank as station B. The model tail is 300 mm and is excluded from that run.
The 150 mm wall height controls the notch opening; the 400 mm base width sets the cross-section. These ideal geometric lengths apply independently of material choice, but they do not establish that galvanized steel, stainless steel or FRP can use the same cutting and folding process. Bend radius, kerf, rolled lips, material allowance and connection hardware require a suitable fabrication method.