Forum Thread

Replacement Office chair base????

YanksIn2009 3,105 773 January 6, 2016 at 01:31 AM
I have a fairly expensive executive office chair that has a broken base (the metal support basically fatigued over the years and snapped). The mounting holes at about 10 in x17.5 in and I have not been able to find a replacement online. Anyone know where one can find parts like this?

Oh and as far as contacting the manufacturer, they are so outrageous that it would be more economical to just buy another chair.

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#2
Maybe look at buying a used char for parts?
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#3
Quote from YanksIn2009 View Post :
I have a fairly expensive executive office chair that has a broken base (the metal support basically fatigued over the years and snapped). The mounting holes at about 10 in x17.5 in and I have not been able to find a replacement online. Anyone know where one can find parts like this?

Oh and as far as contacting the manufacturer, they are so outrageous that it would be more economical to just buy another chair.
Your description is too vague, I can't form a visual of your chairs defectConfused

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#4
Quote from LiquidRetro View Post :
Maybe look at buying a used char for parts?

Thought of that. Problem is you have to find the same model which is hard enough and when they are being sold used, they are sold used and functioning. The chair new is fairly expensive so I tend to doubt I will ever find one that is beat up to a great extent and being sold purely for parts. And the base looks like it is the part that will go first if the cahir is taken care of. It is shocking really how the metal fatigued over the 8 or so years I had the chair. They really must use the cheapest steel they can get away with in China.
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#5
Office chairs always take a beating, 8 years is a pretty good run. Most chairs probably don't even last that long. There are a few companies that make pretty durable chairs like Hon.

I agree that your description is way too vague for us to be of any help
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#6
Code:
-----------  mounting base
     |
     |
   /   \  wheels


top looking down -mounting base
  ___10____
| *      *  |
|           |
|     o     |  <--------broke around center
|           |  17.5
| *      *  |
------------
that's my thought
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Last edited by stufine January 6, 2016 at 11:38 AM
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#7
Stufine's assumptions are correct though the vertical column is really part of\connected to a tilt mechanism in one solid piece and that is what actually gave way.

The chair base literally snapped\fatigued where the metal vertical support beam meets the metal plate base which mounts to the bottom of the chair and is 10 x 17.5 inches on the mounting holes. There is a tilt mechanism there as well, but the metal fatigued and basically created a diagonal tear in the support that eventually got big enough to cause the whole thing to give way under the weight of someone sitting on the chair and leaning back.

The whole assembly is worthless save for the 5 star wheel assembly on the floor which I detached from the vertical cylinder\tilt mechanism that snapped. Whether the wheel assembly can be re-used is debatable (I would assume yes if you can find the exact same fitting support base with the same diameter support cyclinder) but the real problem is finding a main base plate and vertical support cylinder that fits the mounting holes. I really do not care if the wheel assembly matches the old one for aesthetics at this point. If the chair was not now a grand new, I would not bother and just buy a new one.



----------- mounting base
| <------------------------vertical column fatigued.
|
/ \ wheels


top looking down -mounting base
___10____
| * * |
| |
| o | <--------broke around center
| | 17.5
| * * |
------------
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Last edited by YanksIn2009 January 6, 2016 at 12:25 PM
#8
I really don't like your odds of finding something that will work. If parts aren't available at a reasonable price from the mfg, it's going to be difficult. Pictures and/or a model number/mfg might help.
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#9
get a plywood base 3/4"
get another tilt base setup
drill holes to new base size and bolt down towards floor. countersink heads if needed
use current bolts from broken base and screw plywood up to chair. might need longer bolts

naturally not explained perfectly but you should get the idea

I pitch chair tops and keep the bases. roll around table tops
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#10
probably has a lifetime warranty I would contact the vendor!
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#11
Quote from stufine View Post :
get a plywood base 3/4"
get another tilt base setup
drill holes to new base size and bolt down towards floor. countersink heads if needed
use current bolts from broken base and screw plywood up to chair. might need longer bolts
It depends on the chair design, on many executive chairs the chair back is attached to the base by the arms. But on more expensive chairs the back usually attaches to the metal base below the seat to allow more adjustments. Depending on the design, repair / replacement could be difficult.
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#12
How much of a 'handy-man' are you? If none at all, you'd be better off buying a new chair

But if you are, there's these sites:
swivel-chair-parts.com [swivel-chair-parts.com]
echairparts.com [echairparts.com]
officereplacementparts.com [officereplacementparts.com]
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#13
Quote from komondor View Post :
probably has a lifetime warranty I would contact the vendor!
Agreed, at those prices you'd hope so.
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#14
Quote from jkee View Post :
Agreed, at those prices you'd hope so.
5 Years...I already checked.

I.MECHANISMS
Seven Seas Seating warrants to you, the original retail purchaser, protection against defective materials or workmanship covering all executive seating and reclining mechanisms for a period of five (5) years from the date of original purchase, based on reasonable use. After the first year of use, the mechanism warranty covers repair or replacement parts only and does not cover any associated labor or shipping costs.
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#15
Quote from boboli View Post :
How much of a 'handy-man' are you? If none at all, you'd be better off buying a new chair

But if you are, there's these sites:
swivel-chair-parts.com [swivel-chair-parts.com]
echairparts.com [echairparts.com]
officereplacementparts.com [officereplacementparts.com]

Yeah the first place sort of has parts and mechanisms that I might be able to use along with a piece of plywood, but the prices are pretty sky high to the point you just go buy another chair. I have found some 50-100 dollar chair kits I might try with some plywood and see if it works out.
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