ᐅ Calculation of the Floor-to-Floor Height

Created on: 5 Aug 2017 11:21
M
McEgg
McEgg5 Aug 2017 11:21
I have a question about calculating the floor-to-ceiling height... The general contractor is currently on summer break, so maybe someone here can help.

The plan states the following:
  • Top of finished floor = +0.18 m (7 inches)
  • Top of raw floor = +0.05 m (2 inches)
  • Floor-to-ceiling height 2.76 m (9 feet) rough measurement
  • Floating screed with underfloor heating build-up 13 cm (5 inches) including 1 cm (0.4 inches) floor covering

So what is the actual height of the floor at the end? I would say 2.76 m (9 feet) - 0.18 m (7 inches) = 2.58 m (8 feet 6 inches), right?
If I choose a different floor covering than what was quoted, I would need to calculate the 12 cm (5 inches) screed plus the floor covering. For example, for click laminate flooring: 12 cm (5 inches) + 1.35 cm (0.5 inches) + adhesive = about 13.4 cm (5.3 inches).
Then the floor-to-ceiling height would be 2.76 m (9 feet) - 0.134 m (5.3 inches) = approximately 2.62 m (8 feet 7 inches).

Is that correct?
11ant5 Aug 2017 12:24
McEgg schrieb:
Floor-to-floor height 2.76 m (9 ft 1 in) structural

I understand this as the clear floor-to-ceiling height between the construction elements; and "structural" meaning without subtracting the floor build-up or ceiling plaster. A 12 cm (5 inches) floor build-up without covering would result in a clear height of 2.64 m (8 ft 8 in) up to the structural ceiling, before the final floor finishes—that’s the room height. The floor-to-floor height actually refers to the distance to the same height reference point on the next floor, and I would always calculate that from the top of the structural subfloor to the top of the structural subfloor, since floors can have different build-ups. For stair builders, of course, the reference is usually the finished floor level to the finished floor level.

Do you want to know how tall your cabinets can be now?

Before calculating with specific centimeters, don’t forget to consider the tolerances!
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McEgg5 Aug 2017 13:07
Exactly, it’s about cabinets.
That means I always start with about 2.64 m (8 ft 8 in) and then subtract the flooring. Depending on the type of floor, this will vary...
I just didn’t quite understand how they arrived at 18 cm (7 inches). Assuming glued parquet is used, I estimate that about 1.4 cm (0.5 inch) will be added to the 12 cm (5 inches).
11ant5 Aug 2017 13:49
McEgg schrieb:
I just didn’t really understand how they arrive at 18 cm (7 inches).

They actually don’t.
McEgg schrieb:
The plan states:
Top of finished floor = + 0.18 m (7 inches)
Top of raw floor = + 0.05 m (2 inches)

That makes 13 cm (5 inches).
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RobsonMKK5 Aug 2017 15:40
13 cm (5 inches) would be a very thin construction.
Marvinius II5 Aug 2017 22:42
The underfloor heating is installed on an insulation layer made of polystyrene foam. In our case, the total assembly height is 17cm (6.7 inches) plus the floor covering. So, you will end up somewhere around 2.58 or 2.57 meters (8 feet 6 inches or 8 feet 5.5 inches).