ᐅ Which type of brick or block is best for the exterior wall around the front door?

We have a large opening in the exterior wall (3.3m long by 2.5m high [10.8ft by 8.2ft]) that will be filled in, and a high-quality/heavy aluminum front door will be installed there.

The question is, which type of block can be used? I would prefer not to go thicker than 115mm (4.5 inches), otherwise the guest bathroom will become too cramped.

I was thinking of using calcium silicate blocks. The plasterer, who would also do the masonry work, prefers aerated concrete blocks (e.g., Ytong). What about stability in that case? Wall anchors can of course be used, but wouldn’t the heavy door in the middle of the wall exert too much force? Especially if it slams shut? He prefers aerated concrete because the plaster adheres better and, at this thickness, the insulation is also improved. Soundproofing is less of a concern on this side of the house.

Thanks and best regards

I see no reason to oppose the plasterer’s "request." There are also aerated concrete blocks available in 10cm (4 inches) or 7.5cm (3 inches) thickness, as well as gypsum boards. Please show a photo and floor plan to illustrate the current situation. I assume you want to alter a glazed "representative entrance facade" from the 1980s?

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Yes, currently there is a door with windows in the exterior wall, featuring aluminum frames and glass elements, measuring 3.3 x 2.5 meters (11 x 8 feet). So, it is open from floor slab to floor slab.
Now, a new door measuring 1.6 x 2.2 meters (5.25 x 7.2 feet) is planned to be installed in the center.
The surrounding area will be built up with masonry.
The question is whether the door leaf, when opened, will exert too much pressure on a simple wall (12 cm (5 inches) thick, especially if made of aerated concrete) at the hinge side. Even if the 70 kg (154 lbs) door is slammed shut forcefully.

Aside from the fact that in PP4 aerated concrete you can easily hold 60 to 70 kg (130 to 155 lbs) per anchor with the right plugs... The door frame carries the weight of the hinges, not the wall.

In my case, it even holds in PP2, which is a significantly less compressive resistant aerated concrete insulation block 😉 And the door is heavy, RC2...