A note of caution.

Forklift stability is always an issue. The deign standards are based on a flat floor and in the worst case a slope of no more than 2%. This is because the standard requires the frklift be tested in ideal conditions with the load at full height to a slope as low as 3.5%. As a reiult a greater slope than 2% constitutes a ramp.

Hence if you have a situation where you require a forward tilt of more than 3 degrees which is 5% you should review your operational situation.

And this is especially so where your operation requires 3 wheel forklifts which cannot be made as safe as the 4 wheel units with advanced stability controls