Match two unique criteria, total from a third .add to new sheet

Hello
Apologies if this has been answered in another thread, I have tried to ask the question in many different ways but cannot come up with anything that helps.

I have several columns of data regarding damages that contain Date;Item;Volume;Reasons Code in one sheet.

I am trying to define trends.

I am trying to check that if a particular item, in a particular month shows in a table, then the total volume (for that item in that month)is then added together and put into a a column in another sheet.
Eg

Sheet one looks like this (i HAVE ONLY INCLUDED 3 ITEMS - IN REALITY IT WILL BE APAPROX 10)

sheet 1

MONTH....... ITEM.. ........VOLUME... ....REASON
AUG... white tin........... 13.... MISC (PLEASE ADVISE)
AUG... red tin 9 WATER INGRESS
AUG... white tin 60 WATER INGRESS
AUG blue tin 5 MISC (PLEASE ADVISE)
SEPT blue tin 83 MISC (PLEASE ADVISE)
SEPT blue tin 63 WATER INGRESS
SEPT red tin 132 MISC (PLEASE ADVISE)
OCT white tin 51 MISC (PLEASE ADVISE)
OCT red tin 45 WATER INGRESS
OCT white tin 8 WATER INGRESS

Sheet 2 (if I could manage the formula!) would look like this

sheet 2

Month ...white red blue
aug...... 73 .....9....5
sep....... 0.....132....146
oct.......59..... 45....0


I can then chart the trends across several month(if there are any)
I can chart trends no problem, it's the actual formula to pick up the info that I am struggling with