S
samfisher18 May 2016 11:33Hello everyone,
since the installation of the Ikea kitchen in our new build is coming up soon, I have been wondering for several days whether I can mount the wall cabinets on a double-layer gypsum board wall with metal studs. The kitchen has a U-shape, and only one leg of the U is made of gypsum board; the rest is masonry. The cabinets on the drywall wall have a total length of about 1.90m (6 feet 3 inches) and will be hung on a continuous rail. For mounting the rail, I would use metal cavity anchors like the Knauf Hartmut and install around 10 anchors for the 1.9m (6 feet 3 inches) rail.
However, since I have read different specifications regarding the maximum loads or have not fully understood them, I am asking my question here again. According to Knauf, each anchor can support about 55kg (121 pounds). But then I also read that for gypsum boards, a maximum load of 70kg per running meter (45 pounds per foot) is generally allowed. That would be about 140kg (309 pounds) for my kitchen, whereas the anchors would hold 550kg (1,213 pounds).
I also cannot estimate how heavy a fully loaded kitchen cabinet can be (80cm (31 inches) high, 60cm (24 inches) wide). The empty cabinet already weighs around 30kg (66 pounds). If I convert the 70kg per running meter to 60cm (24 inches) width, I get a maximum load of 42kg (93 pounds) for the 60cm (24 inches) wide cabinet. That seems very low to me!
As a backup solution, I had considered attaching metal rails to the back of the cabinets and securing these with an angle bracket to the concrete ceiling. Since the cabinets are quite tall and the gap to the ceiling is about 10-15cm (4-6 inches), this should be barely visible. If necessary, I could also add a front cover panel.
What do you think, is it sufficient to mount the cabinets only with a rail on the wall?
I have attached a 3D graphic to make the situation clearer:
Rear view of the gypsum board wall:
Thanks and best regards,
Sam
since the installation of the Ikea kitchen in our new build is coming up soon, I have been wondering for several days whether I can mount the wall cabinets on a double-layer gypsum board wall with metal studs. The kitchen has a U-shape, and only one leg of the U is made of gypsum board; the rest is masonry. The cabinets on the drywall wall have a total length of about 1.90m (6 feet 3 inches) and will be hung on a continuous rail. For mounting the rail, I would use metal cavity anchors like the Knauf Hartmut and install around 10 anchors for the 1.9m (6 feet 3 inches) rail.
However, since I have read different specifications regarding the maximum loads or have not fully understood them, I am asking my question here again. According to Knauf, each anchor can support about 55kg (121 pounds). But then I also read that for gypsum boards, a maximum load of 70kg per running meter (45 pounds per foot) is generally allowed. That would be about 140kg (309 pounds) for my kitchen, whereas the anchors would hold 550kg (1,213 pounds).
I also cannot estimate how heavy a fully loaded kitchen cabinet can be (80cm (31 inches) high, 60cm (24 inches) wide). The empty cabinet already weighs around 30kg (66 pounds). If I convert the 70kg per running meter to 60cm (24 inches) width, I get a maximum load of 42kg (93 pounds) for the 60cm (24 inches) wide cabinet. That seems very low to me!
As a backup solution, I had considered attaching metal rails to the back of the cabinets and securing these with an angle bracket to the concrete ceiling. Since the cabinets are quite tall and the gap to the ceiling is about 10-15cm (4-6 inches), this should be barely visible. If necessary, I could also add a front cover panel.
What do you think, is it sufficient to mount the cabinets only with a rail on the wall?
I have attached a 3D graphic to make the situation clearer:
Rear view of the gypsum board wall:
Thanks and best regards,
Sam
@ypg
samfisher schrieb:
can be attached to a double-layer drywall on metal studs.
samfisher schrieb:
Since I have read different information about the maximum loads or did not fully understand them, I’m asking my question here again. Knauf states that each anchor can hold about 55kg (121 lbs). Then I read that generally for gypsum plasterboard the maximum load allowed is 70kg per meter (47 lbs per foot). That would be about 140kg (308 lbs) for my kitchen, while the anchors would hold 550kg (1213 lbs).You have reached the point where the anchors are no longer the weakest link in the chain.
The gypsum board wall still has to support the load transferred by the anchors.
The manufacturer of the boards should document the maximum load—try checking their website or ask the supplier / general contractor.
Did you really install 2 layers of gypsum plasterboard, or is it 1 layer of OSB and 1 layer of gypsum plasterboard on top?
If a professional did this, the wall should have metal studs spaced 62.5cm (25 inches) apart, measured from center to center. For wall cabinets mounted on double-layered drywall, I would recommend using hollow wall anchors; in your case, Fischer HM 5x65 S anchors are suitable. They are designed for drywall thicknesses of 20–34mm (0.8–1.3 inches), have a diameter of 10mm (0.4 inches), and require a minimum drill hole depth of 71mm (2.8 inches).
Regarding load capacity values, I noted them down somewhere:
Regarding load capacity values, I noted them down somewhere:
Similar topics