ᐅ What dimensions should my T30 structural load-bearing wall have?

Created on: 3 Sep 2019 20:48
I
immermehr
I
immermehr
3 Sep 2019 20:48
Hello everyone,
we had our planning meeting today and I need to clarify a question.
It concerns a T30 door:
- According to the Novoferm datasheet: structural dimension: 100x2125mm (4x83.7 inches), rough opening/nominal size: 1010x2130mm (39.8x83.9 inches), clear opening: 932x2091mm (36.7x82.3 inches), frame outer dimension: 1042x2159mm (41x85 inches) with a 25mm (1 inch) floor recess.
- We have a screed plus tiles layer of 18mm (0.7 inches).
Can someone tell me which size I need for my rough masonry opening?
Thanks in advance for your help.
I
immermehr
3 Sep 2019 21:19
Data Sheet

Table of standard sizes for fire protection door T30-1 H8-5 (BR, rough dimensions, clear opening dimensions)
11ant3 Sep 2019 23:32
immermehr schrieb:

Can someone tell me what size I need for my shell masonry?

That is clearly stated here:
immermehr schrieb:

Shell dimensions/nominal size: 1010x2130mm (40x84 inches)

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I
immermehr
4 Sep 2019 05:10
11ant schrieb:

It clearly says that:
Thanks for your reply.
The developer means that it only refers to the rough frame door, not the rough opening dimensions of the wall.
The rough opening dimensions of the wall are slightly larger (depending on the tradespeople).
11ant4 Sep 2019 13:55
A rough opening dimension applies only to the hole in the wall—not to the door that will be installed. The table indicates that the door is designed for a nominal size of 101 x 213 cm (40 x 84 inches). The door manufacturer knows that masons are not precision mechanics, which is why there is a standard specifying the allowable tolerances for deviations between the dimensions specified for masonry work and the actual measurements achieved. These tolerances are factored into the door manufacturer’s calculations. Conversely, this means the mason must work within the allowed tolerance range. Masonry corners and openings should always be created by masons—not by friends from other trades who then have to Google whether the given dimensions are serious. They should actually create an opening with the size “width 101 by height 213, each plus or minus according to DIN 18202”!
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I
immermehr
4 Sep 2019 16:07
11ant schrieb:

A rough opening dimension applies only to the hole in the wall – not the door itself that goes into it. The table indicates that the door is made for the nominal size of 101 x 213 centimeters (40 x 84 inches). The door manufacturer knows that masons are not precision engineers, which is why there is a specific DIN standard covering permissible tolerances between the dimensions masons are supposed to build and the actual dimensions they achieve. The door manufacturer factors these tolerances into their measurements. Conversely, this means that the mason also has to work within the allowed tolerance range. Masonry corners and wall openings should always be made by professional masons – not by friends from other trades who will first send you off to Google whether the dimensions are serious or not. They should actually create an opening with the size “width 101 by height 213, plus or minus according to DIN 18202”!

Hello 11ant,
thank you for your explanation.
The wall openings will be done by masons. I just need to pass the measurements on to the architect for the plan.
Another question: this door has a floor clearance of 25 millimeters (1 inch). My screed is only 16.5 millimeters (0.65 inches) plus tiles (on the plan: total 18 millimeters (0.7 inches)). How should I solve this problem?