I just made two of these in less than 3 hours according to the timestamps on the photos.
I wasn't rushing, that's just how long it took.
Read Nativewater's Eskimo paddle pages to learn theory and refinements of this type of paddle.
The paddle is 7 to 8 feet overall.
The blades are 3.5" wide at the tips and 2.5" wide where they meet the handle.
The handle portion in the middle is 24-27" long, 1.2" wide, and 1.5" thick.
Size the handle portion to suit yourself.
Tools I used:
dust mask (very important. You'll be making storm clouds of dust)
table saw or bandsaw or jig saw or hand saw for cutting the outline
hand saw (Japanese pull saw)
with Porter Cable 24 grit carbide disk ($7!)
with 50 and 80 grit resin bond sanding disks
ruler and magic marker
More paddle and oar making projects:
Here's the quickest way I know to make a paddle.
If it's oars you need, here's how to make oars from 2x4s.
Make a steering oar for a Marshall Islands Racing canoe.
Step 1: Get Wood
Dig around in the guts of a demolished house or barn til you find a softwood 2x4 about 8 feet long Look for straight grain and no knots where the middle handle portion.
Knots in the blade area are okay, imagine whether the knots will make the paddle too weak or not.
Usually it's easier to find clear wood on a bigger plank such as a 2x6, 2x12, etc. They came from a bigger tree and you've got more leeway to dodge knots.
New cheap 2x4s tend to be the core slice from a log and have lots of knots from the baby tree.
I found a good old 2x8 with knots in all the places that wouldn't be paddles. It's weathered and severely cracked, but that doesn't bother me. The blades are carved down past the bottom of the cracks. I'll fill any cracks in the handle portion.