Middle
6′ 7 3/8″ from topSurface height: 21 5/16″
Enter the mounting depth, hardware allowance and ground measurements.
Request a quote Ramp & Slope Calculator.
Set section heights and estimate threaded rods for the middle and end feet.
Set-out heights
Slope4.658%Falling · 2.667°
Rise : run1:21.47Vertical : horizontal
Per horizontal foot0.5589″Drop
Top: 25″ → bottom: 0″, above the same level reference. Joint distances are measured along the ramp from the top.
| Joint | From top | Surface height |
|---|---|---|
| Top | 0″0 in | 25″25 in |
| 1 | 13′ 2 3/4″158.75 in | 17 5/8″17.614 inDrop: 7 3/8″ |
| Bottom | 44′ 9 5/16″537.3319 in | 0″0 inDrop: 25″ |
Fractions rounded to 1/16″; decimal readings shown to 0.0001 in. Each height is calculated directly from the start, before rounding.
Each section is assumed to follow the same slope. Treat landings and changes of slope as separate runs.
Threaded rod presets
A middle and end support for each entered section. Set the hardware offsets once, then adjust the ground reading at any foot.
Measure vertically from the walking surface to the underside of the bracket supported by the rod.
The bottom reference for the clear gap. Include any plate, pad or base below that reference.
Combined rod length outside the clear gap, through the brackets, nuts, washers and foot attachment. Count it once.
Extra rod beyond the calculated assembly length. This does not change the preset gap.
Use the same level reference as the ramp heights. 0 assumes the ground is at that reference level.
Middle = 50% of each section; end = its joint. Feet are assumed directly below those positions, with vertical rods. Ground correction: positive for higher ground, negative for lower ground.
Enter the mounting depth and hardware allowance to calculate rod lengths. Use 0 only when no allowance is needed.
1 entered section · 2 foot positions · hardware measurements needed
Section 113′ 2 3/4″ along ramp
End
13′ 2 3/4″ from topSurface height: 17 5/8″
Enter the mounting depth, hardware allowance and ground measurements.
31′ 6 9/16″ of the ramp is beyond the entered sections. Add the remaining lengths above to include their feet.
Preset clear gap is measured from the top of the foot base to the underside of the ramp bracket. Set that gap approximately before lifting the section into place.
Total rod length adds your hardware and spare allowances, rounded up to 1/16″. Check the final settings with a level and use the engagement and extension limits for your actual hardware.