ᐅ Deviation of actual values from planned values

Created on: 13 Jan 2020 16:03
O
Oakland
I’m not sure if this is the right section, but I’ll just post my question here:

What percentage deviation from the planned values should be expected or accepted?

Example: A room is supposed to be 350 cm (11 ft 6 in) wide according to the plan, but it is only 335 cm (11 ft). Would this still be within the tolerance range where nothing can be done?
Mycraft14 Jan 2020 13:16
Oakland schrieb:

100-300 ml less oil than specified is filled.

This is not a problem since the given amounts are only approximate values anyway, and the oil pan and other components in the oil circuit never completely drain during an oil change. Filling up to the minimum level is completely sufficient.
O
Oakland
14 Jan 2020 13:21
Mycraft schrieb:

This is not really an issue since the specifications are only approximate values anyway, and the oil pan and other components in the oil circuit never fully drain during an oil change. Filling up to the minimum level is completely sufficient.

If 5 liters (5.3 quarts) are added but 5.5 liters (5.8 quarts) appear on the invoice, that is called fraud.

From a technical point of view, you might be right.
Mycraft14 Jan 2020 13:57
Of course, the invoice should reflect exactly what was delivered. However, your statement can also be interpreted as the manufacturer’s specifications not being followed.
H
hampshire
14 Jan 2020 15:53
Oakland schrieb:

Example: A room is supposed to be 350 cm (138 inches) wide according to the plan, but it is only 335 cm (132 inches). Is this still within the tolerance range where nothing can be done?
The deviation sounds quite large. This can result not only from errors or fraud but also from how the measurement is interpreted.
For example, if you have a rough dimension of 3.5 m (11 ft 6 in) and on both walls there is a service or installation layer, you can easily lose about 15 cm (6 inches).
Ask for clarification first; you can still file a complaint afterwards.
Vicky Pedia14 Jan 2020 16:44
@hampshire Of course, I assumed we were talking about the structural dimensions. Additionally, the installations should be visible on the detailed 1:50 scale plans. However, you are probably right; it’s just speculation if you don’t know the conditions and the plans. Fraud would be my last suspicion, as that is more complicated than measurable or countable issues. More likely it is carelessness or a mistake in judgment. I would ask the site management for clarification.
Birkenfelder15 Jan 2020 11:26
Hello,

A deviation of 150mm (6 inches) is quite significant. To me, such dimensional errors often suggest differences between the various planning documents. Was there a change in the architect’s plans that the structural builder might have missed or perhaps worked from outdated drawings?

It would be worth asking about this!