I wanted a cheap coffee table, so I went to Ikea and picked up a Lack coffee table for $20. It was a little plain, so I decided to customize it a little.
Step 1: Materials and Tools
IKEA Lack Coffee Table ($20)
12 ft. 1x6 boards ($10)
Bag of concrete ($3) (I used standard quikrete concrete. For a smoother finish you may want to try masonry concrete)
Wood stain (Your choice. I used golden oak)
Wood finish (There is usually satin, semi-gloss, and gloss. Again your choice)
Saw (Table, circular, jig, whatever you're comfortable with. I used a table saw)
Concrete polisher (hand pads or angle grinder)
Step 2: Cut the wood
The original dimensions of the table surface were 21.5 in by 35.5 in. I wanted a 1 in overhang around the edge, so the outer dimensions of the wood were 23.5 in by 37.5 in. Measure and cut your wood at 45 degree angles. The longer edge should be equal to the outer dimensions. If its not exactly 45 degrees, its okay, we'll fix it later.
Step 3: Glue the wood and fill in the gaps
Scuff up the surface of the table a bit so the glue will adhere better. Then apply a liberal amount of glue onto the table and place the pieces of wood down. Try to line them up as closely as you can. I had a lot of trouble here because my cuts were not exactly 45 degrees.
Once the pieces are on the table, clamp them in place so they don't move while they are drying. After clamping, I used some wood filler to fill in any imperfections in the wood and the small gaps between the pieces. Then I let the whole thing dry for a few hours. Once everything was dry I sanded off any excess wood filler.
Step 4: Stain the wood
You could probably wait until after the concrete is dry to stain the wood, but you might get some stain on the concrete. I choose a golden oak color for my stain. I thought it looked good with the black table. You can choose whatever finish you like!