Hi From Sunny Devon/uk

Hi there guys,

Big hi from sunny devon/uk

new to baking bread and needed some advice if imay please?

my white loaf is turned out really nice but when i try to make a wholemeal loaf it comes out like a brick and idont know why.

someone did say i may need to add some Gluten flour or been told another name is vital wheat gluten but i cant seem to find any in my local shop can anyone give me some advice please??