If you are replacing or patching a floor, it is important to choose the correct type of timber and size of floorboard to suit the age of your building.
Os ydych yn ailosod llawr i gyd neu ddarnau ohono, mae'n bwysig dewis y math cywir o bren ac estyll o'r maint cywir i gyd-fynd ag oedran eich adeilad.