Wooden Building Block Table Top

by zieak in Workshop > Furniture

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Wooden Building Block Table Top

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I love the look of used wooden building blocks and have used them to make a couple of tables.  This one is one that I made as a wedding gift for a friend.  This is a project easily completed in a weekend as long as you have the materials on hand.  

Tools and Materials

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You will need:
  • Lots of building blocks.  
  • A piece of thick plywood as large as your planned tabletop.
  • Trim boards for the outside edges of your table.
  • A base or legs for your table.  
  • Wood glue
  • Tape measure
  • Saw
  • Hammer and nails
  • Polyurethane
  • Paintbrush and small pail
A few thoughts on the materials... 

I have been somewhat successful in finding used wooden blocks at our local thrift stores.  You might have some kicking around already or you can ask friends.  I have a preference for using the simpler shapes but you can use cylinders and triangles and other shapes that might work.  A typical end table takes a fairly substantial pile of blocks.  I have also found that manufacturers definitely have different dimensions so you might not be able to easily mix between companies (not that they are ever labeled).

I love finding trashed tables with good bases.  The one I used was from a restaurant table that I reclaimed from the landfill.  If you want something new, you can order from tablelegsonline.com (I am not affiliated - just a very happy customer.)  Or you can build something yourself!

Layout Your Table and Cut the Sub-tabletop

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Using you blocks, plan your pattern.  This is pretty easy - just play with them.  Maybe you want something random.  Maybe lines.  Or concentric rings.  I have usually done what I can to maximize the size of the table with some sort of pattern.

Then measure your table top's dimensions.  

Cut a piece of thick, flat, plywood (I used 3/4 inch) that is the same size.  It doesn't have to be pretty, but it should be flat.  Mine was a little warped so I screwed 2x4 boards underneath to level it up nicely.  

Glue Your Pieces in Place

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You should be able to just spread the glue on the surface of the plywood and brick that contact each other but you could also add some between bricks.  I will use the trim to contain the edges of the bricks though so they are not likely to be knocked free.  

Trim the Outside Edge and Seal

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I used some hemlock boards that I had around to make a rough frame around the edge of the table.  I was able to use finishing nails to nail into some of the larger blocks, the other trim boards and the 2x4 pieces that I had screwed to the plywood.

If you want to, you can use a paintbrush to put a coat of polyurethane on the blocks.  The first table that I made like this, I used a pour-on epoxy to level the entire surface.  I wanted this one to be a little more rustic because the epoxy one definitely turned out more glossy.

Add the Base

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This base attached with just a few wood screws.  I had previously repainted it when I was doing another project and had leftovers to use up.  

My first building block table was similar, but I didn't use a base layer below the blocks and then used the poured-on epoxy.  The gluing took much longer and the epoxy took a long time to dry.  Then, I had to sand many of the edges to square it enough to put the trim on.  In the end, I think  like the slightly more rough look of the weekend version I detailed in this Instructable.