The situation is a result of a few traits that can all be combined and summed up in one word....greed:
Source the cheapest Chinese shit-excuse for furniture that you can find and sell it on for ten times the price.
Never mind if parts are missing...that's not your problem. You will never be facing the customer....ever.
Get the cheapest Indian, Pakistani or whatever to do the job - no qualifications needed.
When he gets here, reduce his salary even further with "deductions" for air ticket etc.
(This will do wonders for his morale.)
Take his passport away and inform him that he has no rights here in Oman.
(More morale building.)
Make sure that you choose floor-staff who have only basic English - they are cheaper to employ and when you drop their salaries and cheat them out of bonuses and days-off etc you can just claim that they did not understand you during the original negotiations and after all, they did sign a contract.
Put the fear of God, Shiva, Allah or whoever into your employees and further compound that cultural flexibility with the truth, so that no matter what the customer wants, they will tell you it is possible, because if it's not possible and the customer walks out the door, you will personally have them transferred to Salalah or some other far-off land as punishment, take a month's salary as compensation and refuse to pay their return flights home.
Your delivery team has to be made up of at least one Omani - this is the law.
The work ethic is low to non-existent here (don't protest - you know it's true for the menial jobs and I have been here too long to take the wishy-washy crap that is the usual argument for not doing anything.).
Qualifying criteria for a local or "token" Omanisation statistic in a low-level services position appears to be the ability to fog a mirror.
Can't blame him on anything though because he was sitting in the truck all the time.
Work your Indian and Sri Lankan "carpenters" for at least twelve hours a day and then leave them in the squalid conditions that you call "accommodation" - four walls and a roof is NOT a job well done on your part.
People need proper care and support (especially those who are away from family and friends through no fault of their own and no reason other than a messed up and corrupt economy back home - poverty like you have never seen, folks), proper furniture and facilities, air conditioning that works and when it doesn't you fix it THERE AND THEN and not when you can tear yourself away from your phone, the bar or the massage parlour.
It doesn't matter that what you have provided is "better than he has at home" - you should be making a conscious human effort to far exceed what his standard of living is....he is making you a bloody fortune!
Gouges get taken out of headboards and scratches get ripped into chairs and tables because most of the time these guys are so tired, pissed-off and disheartened that they have simply lost the will to live and with the loss of primordial instinct that goes with that, you can expect a severe reduction in general competency, motivation and eye-hand co-ordination.
Dissent is bubbling under the surface. An employee rebellion could happen overnight and then what's going to happen? What would a "tools down" protest for a week achieve on the "copping on that you are at the mercy of the minority workforce - they just haven't realised it yet" front?
Have a look across the road in Qatar.
Outnumbered five to one.....can you imagine the carnage if it all kicked off over there?
This is Oman - things are not changing. This is how it is. You just have to roll with it.
I buy furniture, I collect it myself even if I have to rent a van to do it, and finally, I build it myself.
It keeps things under my control - and leaves my blood-pressure within limits.
I recommend you do the same.
However, that said, I still love this place to bits.