Organisers were quickly playing down concerns that the venue would not be completed in time for December's Asian Games, but the postponement will still be a major embarrassment as the $200,000 Masters tournament is regarded as one of the biggest events on the competitive calendar.
Both the Professional Squash Association (PSA) and Women's International Squash Players' Association (WISPA) received letters from the Qatar Squash Federation which expressed its regret.
"The events will be postponed until further notice due to the non completion of the squash complex.
"The plan is to host the Qatar Classic within the coming six months after getting the final approval from Qatar national Olympic committee.
"Again I would like to apologise for everyone on behalf of Qatar squash federation."
Delays in construction made hosting the event impossible.
Andrew Shelley, Executive Director of WISPA, was quick to pay tribute to the support of the Qataris despite the postponement.
"Whilst this is extremely disappointing for all concerned, it is important to remember that the Qatar Squash Federation have been supporters of both WISPA and the PSA for a number of years with the Qatar Classic.
"We know that their passion will ensure that the Classic will take place in the coming months."