The state government has flagged a possible ban on the sale of caged eggs in Western Australia unless animal welfare standards for laying hens are improved.

Agricultural minister Alannah MacTiernan confirmed the move on Wednesday morning which would require producers to provide more room to caged hens.

The state government has flagged a ban on caged eggs. Credit:Warwick Blackler

Revised national poultry welfare standards, currently under review by the Federal government, propose cages be higher than a chicken's height and each chicken have a minimum floor area of 550 centimetres squared.

Ms MacTiernan said the revised measures were not enough.