Okoume Marine ply. Shop around, good Okoume Marineply should be stamped British Standard 1088. It will be okoume throughout, with no voids, and should have 3, 5 or 7 plies of equal thickness. Such a canoe will last. Cheaper exterior ply can be used, but the life of your canoe will be limitedA2 Stainless steel pan head screws. Don't be tempted by countersunk screws, and don't be tempted by normal exterior screws. They will fail in time.
Lloyd's Approved Polyester resin. This is the best resin for canoe building, and can be applied without specialist skills. Besides, it is UV stable and water resistant, which Epoxy resin is not. Mechanically, epoxy is stronger, but since we use glass fibre tape on both sides of the joins, there is no need to worry about strength.
Ash gunwale strips. Ash is supremely flexible and is ideal for gunwales. You can use other timbers, but will need to steam them before bending to shape, while ash will bend into shape readily. We cut our own gunwales, they measure 6000mm long, by 18mm x 18mm cross section. You can't buy this size easily ( or at all). But you can scarf join 2 shorter lengths together successfully.
Seats ( thwarts) and mid-yoke can be of a range of timbers, or made of an ash frame with a woven seat.
PU glue or waterproof PVA glue. Other glues are available, some will cope with the aquatic environment better than others
You will need lots of sundry bits and pieces: 
Resin brushes, pots, acetone for clean-up
Nitrile gloves
Sanding blocks, sanding discs, sanding belts of various grits

A large flat workbench, at least 8 feet long, and  maybe 900mm wide ( what, mixed measurements???  Yes, I am English!Japanese pullsaws ( because English panel saws just won't do it) or a plunge saw
A drill driver, driver bits, drill bits, 
Awl
Plane or Planer
Clamps
Sliding bevel
Pencils
Sander or lots of sand paper


Somewhere dry, and preferably warm, where the canoe can be built, and equally importantly, stored when not in use. There is a canoe here in my workshop which was built locally ( not by me) in 1973. It is still looking good. It is dry stored.

As emphasized above, we do NOT sell kits or materials for canoe building. However, Fyne Boats do sell kits. Their kits are available from www.fyneboatkits.co.uk . This might be your best option if you are determined to build your own canoe, and prefer not to attend a course. They also offer canoe building tuition. Note that at Fyne, tuition and kit are both required to be purchased if you build your boat with them, and you will be provided with all the pieces cut out ready for assembly.  Important to differentiate this from Birchcanoes, where we make you  cut out your own panels, seats etc ( with our help as required)