22 mm thickness floorboards old house

Ive lifted some floorboards in a old house that are in a pretty bad state.. lots of holes and the T&G has been cut away.. wanted to replace them with new ones.. however having difficulty finding 22mm thickness floorboards

any solutions to this problem?

A timber merchant should have a thicknesser machine, he will charge for thicker wood & plane down. Could be costly.
Where I used to live had a great timber merchant, always cutting to exact sizes.

How about ?? using thickest boards you can find, but, use suitably thick packers on top of the joists as needed? to get the new [thinner] boards to the same top level as the old existing [thicker] boards?

Ken.

One major issue with T&G (other than getting a match for thickness) is getting material which is the same width and has the same tongue dimensions. This means to may need to replace entire sections of flooring rather than individual boards unless you can get stuff machined to order (which is likely to be expensive as stated above)

If it won't be seen it may also be worth knowing that hardwood plywood and chipboard also come in 22mm thicknesses as ex-stock product from timber merchants (forget places like B&Q, though).