Thanks for the reply Peter... it did confuse me a little bit, but it got me thinking about the true measurements of wood (since, here in the US, I knew enough to know that a 2x4 isn't really a 2x4).

So, I pulled the true sizes up... and the plans listed the sizes "2x4, 2x6, and 1x6" so I pulled up those specific true measurements.

Then, using the exploded-out view, seeing the thickness of each, I was able to match them up to the correct true sizes. I still need to math out how many of each I need to buy, but I figured I'd report back w/ my findings for others in the future. Plus, it was good for me to work this out for future plans as well.

**2 x 4 - ***(really 1-1/2" x 3-1/2")*

-- 3. 1-1/2” x 2-1/4” x 2-7/8” make 1

-- 5. 1-1/2” x 2-1/2” x 14-1/4” make 2

-- 6. 1-1/2” x 2-1/2” x 12-7/8” make 2

-- 7. 1-1/2” x 2-1/8” x 2-1/2” make 4

-- 10. 1-1/2” x 3-1/2” x 24” make 1

**2 x 6 - ***(really 1-1/2" x 5-1/2")*

-- 8. 1-1/2” x 5-1/2” x 10” make 1

-- 9. 1-1/2” x 2” x 5-1/2” make 1

-- 12. 1-1/2” x 5-1/2” x 13” make 2

**1 x 6 - ***(really 3/4" x 5-1/2")*

-- 1. 3/4” x 3-1/2” x 6-3/8” make 2

-- 4. 3/4” x 1-1/4” x 7-1/2” make 1

-- 11. 3/4” x 4-3/4” x 27-7/16” make 2

**Not Sure ***(but, these are accent pieces that can wait until the end)*

-- 2. 3/8” x 1-3/4” x 1-7/8” make 2