ᐅ Drying Cracks in Oak Staircase

Created on: 27 Mar 2017 20:52
L
Lars B.
L
Lars B.
27 Mar 2017 20:52
Hello everyone,

I have an important concern and urgently need good advice. In 2015, a balcony platform with a staircase was built onto my house. I chose oak for the stringers of the staircase. Over the course of the first summer, I inspected the stairs regularly and noticed that more and more cracks were appearing, both in the stringers and in the stair treads. The stringers were cut out and re-glued. However, this glued joint is now also opening up. (The carpenter has offered to repair this free of charge, as well as the cracked steps.) I’m not really an expert when it comes to standards or tolerances, but in my opinion the amount of cracking seems excessive. I have attached some photos. The cracks range from 30 to 80 cm (12 to 31.5 inches) in length and reach depths of up to 4.5 cm (1.8 inches).

I would like to hear your opinions.

Last year, I spoke twice with the carpenter on site and insisted that he should rebuild the staircase. Am I right in doing so, and would that be reasonable to expect? If I have forgotten to include any important details, please excuse me – I will be happy to add them.

Thanks in advance!

Holzständerwerk und Holzbalken einer Außenkonstruktion im Freien


Außenbereich mit Holzbalken, Rohbaukonstruktion und Regenrinne sichtbar.


Außen Treppenstufen aus Holz mit Geländer neben Steinwand


Außenbereich mit robuster Holztreppe und Geländer, Garagen- und Hausansicht im Hintergrund


Holztreppe im Rohbau unter Bauarbeiten aus Balken, blauer Himmel sichtbar


Außenbereich mit rohen Holzbalken einer Treppenkonstruktion auf betonierter Fläche.


Außen-Holztreppe mit Geländer an Mauer und Betonboden


Holztreppe am Bau mit Geländer und Schraubverbindungen.


Außen-Holztreppe mit rissigem Geländerpfosten und Stufen auf Baustelle


Holztreppe und Deck mit großen Rissen im Balken bei Bauarbeiten
D
Deliverer
28 Mar 2017 11:37
That doesn’t seem like a particularly significant amount of cracking...
However, the wood should be treated at some point!
11ant28 Mar 2017 14:13
I’m much more worried about installing the steps :-(

I would say the wood simply wasn’t stored long enough.

In my opinion, stair construction is more of a joiner’s trade than a carpenter’s trade, but that may vary depending on the region.

For overlapping steps, I would have used a carpenter, and for properly fitting the steps, a joiner. The construction shown in the pictures is neither one nor the other. But that doesn’t change the storage time issue.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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Nordlys
28 Mar 2017 14:35
Untreated oak is not ideal for outdoor use. Siberian larch performs much better. That’s just the way it is. Old shipbuilding oak, aged for years and exposed to the wind, is hardly affordable. This is something you just have to accept. Karsten
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Payday
15 Apr 2017 15:30
No surface treatment was applied here, right? Why wasn’t it oiled, painted, or treated in some way directly during installation?