Premier Annastacia Palaszczuk announced her 14-minister cabinet on Sunday, prior to its swearing-in on Monday.

Opposition Leader Lawrence Springborg said the make-up of his shadow ministry would not be determined until the "close of business" this week, or possibly as late as Sunday.

"We'll be maintaining by and large the same number of shadow ministers as were in the ministry previously and there's a good reason for this," he said following a 2¾-hour party room meeting at Parliament House on Tuesday.

"Basically, we're looking at a $50 billion public business, which is the government in Queensland, and I think what Labor have done will prove itself in the medium-to-long term to be absolutely unworkable.

"It cannot represent properly the magnitude of the business of government in Queensland and it makes sense to have portfolios that are manageable, because otherwise you become frozen by indecision and you're not across your brief."

There was one financial downside to at least some members of an expanded shadow ministry. Because it can only be the size of the government's ministry, the additional shadows would have to volunteer their services without the additional pay packet.

"People understand the reality of what we're dealing with," Mr Springborg said.

"They understand that we can only really officially shadow the government, but there people certainly very willing to make sure we have the commitment as individuals to provide a real alternative to Queenslanders.

"So there is a strong understanding of that and strong support for that."

EARLIER

A depleted Liberal National Party has met at Queensland Parliament House for the first time since it returned to opposition.

Opposition Leader Lawrence Springborg, who was last week elected to his party's leadership for the third time, got the meeting under way about 1pm on Tuesday.

There was no inspirational pre-party room meeting speech for the benefit of assembled media.

Instead, there was a cursory greeting, followed by a request for "our friends in the fourth estate" to leave so they could "get down to business".

Among the items to be discussed would be the makeup of the shadow ministry.

Whilst it was ultimately the decision of the leader, Mr Springborg said the party room would discuss whether to maintain a 19-strong front bench or follow the Palaszczuk government's lead and trim it down to 14.

Speaking on Fairfax Radio 4BC on Tuesday morning, Mr Springborg said Premier Annastacia Palaszczuk's decision to cut the number of ministries from 19 to 14 would prove to be a failure.

"We've got people who largely weren't in Parliament and those that were, weren't in the portfolio areas they're in now so they'll spent an inordinate amount of time getting to know their portfolios before they get to govern," he said.

"The only saving grace is that the portfolios that they take out are not the psychedelic cot-cases they were when we came to government (in 2012)."

Mr Springborg has been critical of the Labor ministry's inexperience in government, with five of the 14 frontbenchers elected to Parliament for the first time last month.

The Newman ministry also included five first-time parliamentarians in David Crisafulli, Tim Mander, John McVeigh, Ian Walker and Campbell Newman himself.

Mr Springborg said he was "inclined" to maintaining 19 shadow portfolios in Opposition, but five of those positions would have to be filled on a voluntary basis.

"All we can do is to actually reflect the government's ministry and those would be officially recognised," he said.

"Anyone over and above that would have to be prepared to be shadow ministers and not receive that (shadow ministry) allowance."

A spokeswoman for Mr Springborg said a decision on the shadow ministry was not expected to be finalised on Tuesday.