We have bought a very heavy solid wood cabinet. I would like your help
to determine if my living room hardwood floor can take this weight.
It weights 580 lbs empty. With our items added to it, I estimate the
weight of this cabinet would be 830 lbs. The wood cabinet is 20" deep,
67" wide and 90" high. The cabinet would rest on the floor using 4
levelers. This implies the load on each leveler, will by 830 lbs
divided by 4 i.e. about 208 lbs approx per leveler.
The levelers have a 0.75 square inch surface area. This implies the
load on the floor through each leveler is 208 lbs / 0.75 square inches
= 277 lbs / sq inch.
We want to place the cabinet in a ground floor room, butting a wall
that is also an exterior wall of the house. [Cabinet would extend 20
inches out from this wall into the room].
The house has a crawl space below. The flooring in the room is Bruce
Can you advise on whether my floor can take the weight of the cabinet?
Is there additional data I need to gather, before this question can be
Thanks a lot for your help
I don't know about your cabinet. I have a 6 feet grand piano sitting in
my living room and it did not cause any trouble. Also 3 curio cabinets
full of stuffs along the walls. Been 12 years since we moved in after
having this house built which has 12x8 inch laminated beam with 2x10
inch joist 16 inch OC on a concrete fuul basement.
On 10 Jan 2007 20:01:48 -0800, email@example.com wrote:
Using a live load standard of 40 lbs psf, I would say your going to be
What I would do is find out what your floor joists are, 2x8, 2x10,
2x12, engineered joist etc. Note the species/grade also. Then go to a
span table and determined what the floor will accept.
Personally I would be more concerned with movement. Walking towards
the cabinet can sometimes resonate into the joists. Especially on the
I would be inclined to nail two 2x6's together and firm up underneath
with a couple screw jacks about 20 inches from the foundation wall.
Just leaving the jacks there of course.
I would also find some way to anchor it to the wall, for safety.
I'm not a certified carpenter Bob, but this is what I would do.
Thanks to all for the info. Below is additional information based on
the questions you asked.
The sub floor is supported by I-Joists from Boise - called All Joist
that are I shaped with a 2x3 on the top and 2x3 on the bottom. In
between is what seems like OSB board 3/8" think. The total height from
top of top 2x3 to bottom of bottom 2x3 is 11 7/8". These I joists are
spaced 19.2" from each other.
The length/span of the I-Joist is 29 feet 5 inches. The I Joists run
from front of the house to the back. On the front end is the front
foundation wall. On the backend is the back foundation wall. About 12
feet from the front, there is four 2x10s that run left to right i.e.
are perpendicular to the I-Joists.
The room in question is in the front left corner of the house. The room
wall length running front to back is 11 feet 9 inches .The width of the
room left to right is 13 feet 5 inches. The cabinet would be placed.
The left wall of the room running front towards back of house is an
exterior wall - The cabinet would be placed parallel to & butting this
The front of the cabinet would be parallel to an I Joist - with the
cabinet width being 67 inches. The cabinet depth is 20 inches - so I
imagine that the cabinet will probably cross over a I Joist somewhere -
but none of the levelers on the cabinet probably will exactly on top of
The finished flooring is Bruce pre-finished hardwood oak strips 3/4" x
2 1/4" nailed down.
The subfloor is OSB board.
On 11 Jan 2007 02:41:01 -0800, firstname.lastname@example.org wrote:
Because it's a cabinet, I'm assuming that the sides come almost to the
floor. Also because of the size and bulk, I'm assuming they come
almost to the floor, because I think a really big cabinet would look
strange standing on legs. OTOH, I'm no designer and maybe it does
have legs, in which case, maybe you woulld have to put down the steel
plate and then cover that with some more attractive cover, carpet, or
plywood, maybe with quarter round at the edges.
I don't think the steel plate would have to be very thick to
distribute the weight from just below the leg to a couple inches in
all directions. Thicker would get 4 or 5 inches in all directions if
the plate went in those directions. This would help if the floor were
week but the plate extended over joists that are I'm sure stronger
than the floor.
If this were my situation, I would spend $50 to talk to a Strutural
Engineer. I'd take all the information you have gathered along with
some photos and ask his/her opinion. Then, follow the advice.
(This also has the virtue that when your cabinet falls through the floor
you have someone to sue for the repairs.)
P.S. I suspect that if it is safe to have a woman on spike heels
walking on your floor without damage, your weight of 277 lb. should be
no problem, but I am not an expert so don't sue ME!
That's not really that much weight for a floor. If distributed, that
comes out to about 90 pounds per square foot, which is nothing.
Think of it this way. A person can stand comfortably in a 1' x 2'
space of floor. That's 2 square feet and 90 lbs/sq ft would be the
equivalent of a 180-lb person (an average man). An ordinary floor
should be able to easily support a room completely filled with people.
A concentrated (non-distributed) load would put more stress at
individual spots, but the floor boards largely distribute the load
among the joists anyway. The only worry with a concetrated load might
be piercing through the floorboard at a spot. If it's good hard wood
there should be no concern...besides, your load is no worse than a
208-lb person standing on one foot.
Well, I agree that there's no danger of a collapse or punch-through
if the floor was built anywhere near to code, but I think I'd
still put coasters under the four legs to limit denting and
scarring (of the floor) when people slide the furniture around.
| 580lb empty, solid wood, no shit. What is this thing? Pictures? Why is
| it built so heavily?
only veneered particle board is this heavy.
a cabinet this size made out of real wood would weigh aprox.130 lbs. or
I would want to put coasters under her too.
Barely related but in the 60's I used to attend a social hall, where
there were often receiving lines. At the right angle, I notice the
scores or hundreds of indentations in the asbestos? commerical quality
tile floor where the women had stood in the their high heels.
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