How to Repair a LEGO Wall Baseplate

How to Repair a LEGO Wall Baseplate | When you build a LEGO wall, you will occasionally have to fix and reglue a baseplate.  Here's how.

When I first built our Epic LEGO wall back in Sepetember 2014, I had no idea how much the concept would resonate with people.  Since then, I’ve seen dozens of amazing LEGO walls and variations of LEGO walls (including several in Canada!).  I’ve seen people create mobile walls, walls that can covert into tables, LEGO circulation desks, LEGO endcaps of shelving units.  It’s amazing.

But while my original post goes into all the details of creating one, it doesn’t offer much on maintaining one.  In the two and half years that I’ve had my LEGO wall, I’ve had to repair baseplates several times, so I figured it was time to make a tutorial.  Here’s a step-by-step tutorial to help you repair a loose baseplate:

Carefully remove the loose baseplate

Step 1: Carefully remove loose baseplates

You don’t want to warp or bend the plates, so gently remove them from the wall.  You might have to pry some of the sticker parts with a tool like a scraper, but do it carefully.

Remove dried glue from the wall

Step 2: Remove dried glue from wood

Scrap off the old, dried glue so that you can start with a clean-ish slate.  I used a chisel scraper from Home Depot that did the job pretty well.  This part might take awhile.  Be careful not to accidentally loosen or damage other plates during this part.

Sand wall and baseplate

Step 3: Sand back of baseplate and wood

Sand both the back of the baseplate and the wood where the baseplate will go.  You want to have a nice, porous surface for the glue to adhere to.

Reglue the baseplate

Step 4: Reglue the baseplate

Put plenty of glue on the back of the baseplate.  I like to do the edges, an x in the middle and some extra dots.  And don’t be like me in this picture – use a caulking gun.  It’s cleaner, more efficient and a lot easier on your hands.

Reattach to wall

Step 5: Reattach plate and use LEGOs to secure

Reattach the plate to the wall and use some extra LEGOs to secure it in place.  This will ensure that you can build across the plates

Let it dry

Step 6: Let dry at least 24 hours before building

It’s torture, I know, but let the glue dry for at least 24 hours (preferably longer) before building on it again.

Do you have a LEGO wall?  How do your students like to use it?

Diana Rendina, MLIS, is the media specialist at Tampa Preparatory School, an independent 6-12 in Tampa, FL. Previously, she was the media specialist at Stewart Middle Magnet School for seven years, where she founded their library makerspace. She is the creator of the blog She was a monthly contributor to AASL Knowledge Quest from 2015-2018. Diana is the winner of the 2016 ISTE Outstanding Young Educator Award, the 2015 ISTE Librarians Network Secondary Award, the 2015 AASL Frances Henne Award & the 2015 SLJ Build Something Bold Award. She is an international speaker on the Maker Movement and has presented at conferences including AASL, FETC & ISTE. Diana co-authored Challenge-Based Learning in the School Library Makerspace with Colleen and Aaron Graves and is also the author Reimagining Library Spaces: Transform Your Space on Any Budget.