i need advice on buying a beginers board

my sister and i are thinking of buying 2 surfboards were both beginers
shes 15 11/12 stone and about 5ft 9 im 5 ft 10 and nearly 14 stone
does anyone know what kind of boards would suit us best
what height and width should the boards be?
shes 15 11/12 stone and about 5ft 9 im 5 ft 10 and nearly 14 stone
does anyone know what kind of boards would suit us best
what height and width should the boards be?