Let's Build a Workbench

I've been building a vanity for the girlfriend and all of my work has had to happen on the floor. Well no longer! Today I built myself a basic workbench out of some 2x4s and MDF. It is a basic design but is quite sturdy. Here's how I did it:

Here I am making the legs with two 2x4s I laminated together.

I put them together with 2 1/2" screws...

...and a bit of wood glue.

The completed legs are 40" tall. A good standing height for me.

I built the side frames by connecting two legs with 18" boards.

And just copied it for the other side.

Attaching the side frames with 46" long boards.

Front and back done.

Standing up. I will have to fashion some way to level it on my uneven floor.
I added a cross beam for supporting the top surface.

I used 3/4" MDF for the top. It is strong and I won't mind
screwing into it or ruining it. It is sacrificial.

First use! I am using the workbench to complete the workbench.
I clamped a 1/2" MDF panel down to cut it for the bottom shelf.

I had to cut it to fit width and depth as well as cutting notches
to accommodate the legs.

All done! Miter saw fits nicely on top.

And cleaned up the workshop.

Most of the bench was put together with some wood glue and then 2 1/2" screws. The MDF panels were 2'x4' and attached with 1 1/4" screws. The top panel was not cut and overhangs on the front and sides. It is flush with the back of the bench since it will be placed against a wall. I haven't yet decided if I will mount it to the wall for stability or keep is somewhat mobile. The frame was built using 7 2"x4"x8' pine boards. I used my miter saw for the framing cuts and a circular saw for the MDF. The MDF creates a very fine dust when cut so be sure to wear good respiratory protection. I will be investing in a new respirator as I found that my glasses and safety glasses fog up after 4 or 5 breathes with the disposable masks.