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Cupboard shelves - help please.

Need a set of 3 shelves built in a hallway cupboard. The cupboard is 875 wide and 570 deep (we would like the cupboard shelves to be half this width ish). The shelves would need to start at about 1.5m high. These do not need to be made out of anything fancy, and will be mainly used for storing cleaning supplies and such. Thank you!