Common Mistakes When Laying Laminate Flooring (And How to Avoid Them)
- Jayant Upadhyay
- Aug 2
- 4 min read
Table of Contents
Introduction
Why Laminate Flooring is So Popular
Mistake 1: Skipping Subfloor Preparation
Mistake 2: Ignoring Acclimation Requirements
Mistake 3: Laying Over Uneven Floors
Mistake 4: Not Leaving Expansion Gaps
Mistake 5: Choosing the Wrong Underlayment
Mistake6: Incorrect Plank Alignment
Mistake 7: Using the Wrong Tools
Mistake 8: Not Planning the Layout
Mistake9: Forgetting Moisture Barriers
Mistake 10 Hammering Planks Too Hard
Mistake #11: Installing Too Quickly
Mistake #12: Not Considering Room Transitions
Mistake #13: Neglecting Manufacturer Guidelines
Mistake #14: DIYing Without Research
Mistake #15: Poor Finish Around Obstacles
How to Avoid These Mistakes
Pro Tips from Flooring Experts
Conclusion
1. Introduction
Laminate flooring is a budget-friendly, attractive, and durable choice for homeowners who want the look of hardwood without the cost. However, even a DIY-friendly material like laminate can present problems if not installed correctly. This guide explores the most common mistakes when laying laminate flooring—and how to sidestep them.
2. Why Laminate Flooring is So Popular
Laminate flooring mimics wood or stone using a photographic applique layer under a clear protective layer. It’s:
Easy to install (thanks to click-lock systems)
Scratch and moisture-resistant
Affordable
Available in a range of styles
But improper installation can lead to warping, separation, or costly repairs.
3. Mistake #1: Skipping Subfloor Preparation
Why it’s a mistake:
A clean, dry, and level subfloor is essential. Dirt, debris, or moisture can prevent proper adhesion and lead to squeaking or movement.
Solution:
Clean the subfloor thoroughly
Use a level to check for dips or bumps
Sand down high spots and fill in low areas with leveling compound
4. Mistake #2: Ignoring Acclimation Requirements
Why it’s a mistake:
Laminate planks can expand or contract with temperature and humidity changes. Installing them right out of the box can cause buckling.
Solution:
Let the planks acclimate in the room for 48–72 hours before installation
Keep them flat and in the same environment they’ll be installed in
5. Mistake #3: Laying Over Uneven Floors
Why it’s a mistake:
An uneven subfloor causes laminate planks to move or lock improperly, leading to separation over time.
Solution:
Use a straightedge to find uneven areas
Patch or sand the subfloor
Use a self-leveling compound if needed
6. Mistake #4: Not Leaving Expansion Gaps
Why it’s a mistake:
Laminate expands and contracts. Without an expansion gap around the edges, the flooring may buckle or warp.
Solution:
Leave at least ¼ inch gap between the flooring and walls or any fixed object
Use spacers during installation
7. Mistake #5: Choosing the Wrong Underlayment
Why it’s a mistake:
Underlayment affects sound insulation, moisture resistance, and durability. Using the wrong one can compromise performance.
Solution:
Use foam underlayment for standard subfloors
Use moisture-barrier underlayment for concrete slabs or moist environments
8. Mistake #6: Incorrect Plank Alignment
Why it’s a mistake:
Lining up the end joints can weaken the floor’s structure and look visually unappealing.
Solution:
Stagger planks by at least 12 inches from row to row
Use leftover pieces to start new rows
9. Mistake #7: Using the Wrong Tools
Why it’s a mistake:
Improper tools can damage planks, cause inaccurate cuts, or make installation difficult.
Solution:
Use a tapping block, pull bar, rubber mallet
A jigsaw or miter saw helps make clean cuts
Don’t use a hammer directly on the planks
10. Mistake #8: Not Planning the Layout
Why it’s a mistake:
A poor layout can lead to narrow pieces at the edges, uneven transitions, and waste of material.
Solution:
Measure the room and plan rows
Adjust plank width to avoid slivers on walls
Snap chalk lines to guide installation
11. Mistake #9: Forgetting Moisture Barriers
Why it’s a mistake:
Moisture can ruin laminate from the bottom up, especially over concrete or in basements.
Solution:
Use a polyethylene moisture barrier under underlayment
Always check for moisture content in the subfloor
12. Mistake #10: Hammering Planks Too Hard
Why it’s a mistake:
Laminate has a delicate click-lock system. Excessive force can damage the locking mechanism.
Solution:
Tap lightly using a tapping block
Apply pressure evenly to avoid damaging edges
13. Mistake #11: Installing Too Quickly
Why it’s a mistake:
Rushing leads to alignment errors, missed steps, or damaged planks.
Solution:
Take your time and check alignment after each row
Work in sections and double-check everything
14. Mistake #12: Not Considering Room Transitions
Why it’s a mistake:
Flooring needs to accommodate movement and different materials at doorways or between rooms.
Solution:
Use T-molding or reducers between rooms
Follow manufacturer guidelines for transitions
15. Mistake #13: Neglecting Manufacturer Guidelines
Why it’s a mistake:
Every product has unique requirements. Ignoring them can void warranties or lead to issues.
Solution:
Read the full installation manual before starting
Follow guidelines for acclimation, spacing, underlayment, and cleaning
16. Mistake #14: DIYing Without Research
Why it’s a mistake:
Lack of knowledge leads to problems that could have been easily avoided.
Solution:
Watch tutorials
Read multiple guides
Ask for help or hire a pro if unsure
17. Mistake #15: Poor Finish Around Obstacles
Why it’s a mistake:
Cutting around door jambs, pipes, and other obstacles improperly can ruin the look of your flooring.
Solution:
Undercut door jambs
Use templates for difficult cuts
Seal around pipe penetrations
18. How to Avoid These Mistakes
Here’s a summary of what you should do right:
Problem | Solution |
Uneven floor | Level before starting |
No acclimation | Leave planks for 48–72 hours |
No expansion gap | Use spacers |
Wrong underlayment | Choose based on subfloor |
Bad alignment | Stagger properly |
No moisture barrier | Use on concrete floors |
Poor planning | Layout before cutting |
Rushing | Take your time |
19. Pro Tips from Flooring Experts
Use painter’s tape to prevent chipping during cuts
Label planks by rows to avoid mixing them up
Snap planks together at the correct angle to avoid damaging edges
Use a floor roller after installation to ensure tight seams
Clean up glue spills immediately (if glue-down type)
20. Conclusion
Installing laminate flooring can completely transform your space—if done right. Avoiding these common mistakes ensures a professional finish, long-lasting durability, and better value for your time and money.
Whether you’re a homeowner tackling a renovation or a DIY enthusiast upgrading a room, being meticulous with your process will make all the difference.
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