You are probably referring to the construction module, which is the step of multiples of 12.5 cm (5 inches) with adjustments of -1 for walls and +1 for openings. Yes, taking this into account in your floor plan helps you avoid poor workmanship issues such as mortar pockets caused by overstretched joint gaps.
For ceiling and sill heights, various "adjustments" can be made using small-format tiles or finishing layers, so you don’t need to think so rigidly in full brick increments—especially not with jumps in ceiling height of a full 25 cm (10 inches).
Window and exterior door dimensions are not critical for openings; sill heights are often evened out using cut bricks. For interior doors, it is highly recommended to use standard sizes (typical height today is 213 cm (84 inches), living area doors 88.5 cm (35 inches), bathroom doors possibly 76 cm (30 inches), storage closets 63.5 cm (25 inches), front doors 113 cm (44.5 inches) or 101 cm (40 inches)).
For patio doors, I recommend 113 cm (44.5 inches), and I would always keep window sashes under 1.5 meters (5 feet).
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For ceiling and sill heights, various "adjustments" can be made using small-format tiles or finishing layers, so you don’t need to think so rigidly in full brick increments—especially not with jumps in ceiling height of a full 25 cm (10 inches).
Window and exterior door dimensions are not critical for openings; sill heights are often evened out using cut bricks. For interior doors, it is highly recommended to use standard sizes (typical height today is 213 cm (84 inches), living area doors 88.5 cm (35 inches), bathroom doors possibly 76 cm (30 inches), storage closets 63.5 cm (25 inches), front doors 113 cm (44.5 inches) or 101 cm (40 inches)).
For patio doors, I recommend 113 cm (44.5 inches), and I would always keep window sashes under 1.5 meters (5 feet).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/