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There are never enough cup holders. You have your coffee, water bottles, 1 liter seltzer bottles; Not counting the half drunken ones that you forgot to throw out... Here's a super easy wood project to add 8 cup holders to your car.

Step 1: The BOM

This whole project took less than 2 hours, I made it out of some left over 1x12 and 1x3 boards I had laying around, and some 1 5/8 deck screws and some glue. Oh, as I made the top of the cup holder very high over the hump in the back seat, I used some black styrofoam packing blocks as spacers.

Step 2: Construction

so what are we talking about here?

1) I measured the width height and depth of the hump in the back seat of the car with the seats pushed back, In my case that resulted in an area of 24 inches by 8 inches. the hump was about 3 inches, high and I build the side supports 8 inches high to give a lot of room for the 1 liter bottles, and tall water bottles, figuring I could put something underneath to raise the cup level for shorter cups.

2) I drew the holes on the top, drilled some holes on the line, and then cut the ciricles out with a scroll saw.

3) the router was then used to round off the inside edges (you could just file them) and I set the router bit higher to ge that nice box out section for the outside edges of the top.

4) screw and glued the edges together.

5) coat of stain, and then a 50/50 mix of teak oil and poly-urathane to seal in all the stain.

Step 3: Final Fit.

After everything was dry, I stuffed underneath with a filler material (in my case black styro-foam, but floaty noodles, tissue box, old rolled up towel, etc will do.) As I MEASURED TWICE AND CUT ONCE. all fit exactly in my back seat perfectly. the passenger seat pushed all the way back even double as a lockdown on the cup holder.

Step 4: Final Photos Installed.

Wife is thrilled. Now she can keep 8 cups of half-finished old coffee and soda bottles without spilling any of it!!!!

This won't help add more cup holders but may be helpful for those with older vehicles. <br><br>I modified my cup holders in my '94 Suburban (they were made for some seriously super small cups.)<br><br>I purchased 4&quot;-3&quot; plumbing slip fittings. Inserted into the ridiculously small cup holders and this allowed water bottles, and large to extra large fast food cups to fit nicely with added height &amp; width very securely. <br><br>It wasn't the most attractive modification but it surely worked.
My car is a 2003 so I only have 2 cup holders in the front. It is HELL! :) <br><br>You are a genius! Does anyone remember the crazy cup &quot;indents&quot; on the inside of the glove compartment door that acted as a pathetic &quot;tray&quot;? Who eats/drinks with the car in Park?! No One! :)
<p>My wifes car actually has 5 cup holders, and its still not enough. Plus all of them are short (made for 12oz coffee's,) and the tall water bottles are always falling over. This one is custom to our needs: 6 made for the tall water bottles (and 24oz starbucks coffee,) and the two on the end for 1 liter seltzer bottles. so now with 13 cup holders for the two of us we should be ok. </p>

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