This was my first build. I obviously started small!
Please note due to the dimensions of the wood I used, I had to make slight changes.
The 1x2 measured 3/4"x1.5" so I had to add a 6th board on the stepping surface. Also, there is slightly more than 1/4" gap between the boards due to the width differences. Due to the dimensions of the boards, the height is only 3" instead of the original 3.75". The final dimensions are 17.5x 11x 3.
This step flexes when it is stepped on by an adult so if it is used by heavy people, adding a center support would be a good idea. Otherwise, it's perfect for kids or occasional adult use. The flexing may be due to the use of pine instead of a hard wood.
I don't like the look of the wood-filler filled holes, so next time I will try using wood plugs. I really wanted to stain this but it looked awful with all of the little wood filled patches glaring at me through the stain even though i sanded them and they took the stain okay.
All in all, it was fun and I learned a lot. I watched videos about how to perform different techniques such as using a circular saw and countersinking screws. I read our circular saw manual and used the saw successfully. I also turned a one hour project into an 8 hour project!