Apt.1 Laundry Room Vol.6: Cushion Floor Finish

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ud83dudcda Apt.1 Laundry Room Series u2014 6 of 8

u2190 Apt.1 Laundry Room Vol.5: Wallpaper Finishing u00b7 Series Index u00b7 Apt.1 Laundry Room Vol.7: Vanity Installation Pt.1 u2192

u270fufe0f Originally published: January 5, 2022 / ud83dudd04 Updated: May 8, 2026

2026 DIY Dad’s Note: Finishing the Laundry Room & Completing the 1st-Floor Renovation
Removing the Old Cushion Floor & Prepping the Subfloor
Laying the Cushion Floor
Finished Result
1. DIY Renovation Quote Review Manual
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2026 DIY Dad’s Note: Finishing the Laundry Room & Completing the 1st-Floor Renovation

Most Complained

ud83duded2 RECOMMENDED PRODUCTS

Mold-Resistant Bathroom Caulk

Re-caulk every 3u20135 years. Black mold on caulk is the #1 tenant complaint in Japan.

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The finishing work in the laundry room u2014 wallpaper, cushion floor, and vanity u2014 is complete, and the full 1st-floor renovation has finally come to an end!

Wallpaper Finish (Vol.5)

Wallpapering in a laundry/changing room demands more moisture-resistance than a typical room:

Choose wallpaper with anti-mold properties (essential)
Apply caulk behind the vanity and around the bathroom door frame
Breathable wallpaper is preferable u2014 it lets moisture escape
White and light tones are popular for a clean, fresh look

This room gets hit with humidity every single day at bath time. Taking moisture-resistance seriously keeps the interior looking great for years.

Cushion Floor Finish (Vol.6)

The cushion floor in a laundry room must handle wet conditions:

Choose a water-resistant CF rated for bathrooms and laundry areas
Install base molding at wall joints to prevent water from seeping underneath
Caulk around the vanity legs for waterproofing
Minimize seams in the CF u2014 each seam is a potential entry point for water

Water getting under the CF can cause rot. Take extra care with seam waterproofing.

Vanity Installation (Vol.7)

Replacing a bathroom vanity is genuinely DIY-friendly:

Remove the old vanity (disconnect cold water, hot water, and drain lines)
Set the new vanity in position and secure it to the wall
Connect the cold and hot water supply lines (flexible hose connectors)
Connect the drain (P-trap)
Open the shut-off valve and check for leaks
Caulk around the vanity perimeter

Supply and drain work is generally DIY-legal (no license required). Be meticulous about checking all connections for leaks.

Apt.1 u2014 1st Floor Renovation Complete!

Japanese-style room, kitchen, toilet, bathroom, and laundry room u2014 every room on the 1st floor has been renovated.

1st-Floor Renovation Summary

Japanese room: sandy plaster walls u2192 wallpaper, tatami u2192 CF, ceiling repainted
Kitchen: fixtures replaced, walls refinished
Toilet: full gut renovation u2014 new toilet and interior
Bathroom: converted from traditional wet bath to unit bath
Laundry room: new partition wall and all fixtures installed

The sense of accomplishment from doing every room yourself is something special. “It was a lot of work u2014 but I’m really glad I did it.”

ud83cudfe2 Thinking About Apartment Investment or Renovation?

For apartment renovations, return on investment is everything. DIY Dad dramatically cuts costs by doing the work himself.

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Hey there u2014 DIY Dad here! The 1st-floor laundry room renovation continues. Wallpaper is done; next up is the cushion floor.

u2191 Existing floor before work begins.

Removing the Old Cushion Floor & Prepping the Subfloor

ud83duded2 RECOMMENDED PRODUCTS

Bathroom Vanity & Mirror Cabinets

Mirror cabinets add storage and light u2014 tenants notice immediately.

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Amazon Japan u2192

I stripped the old cushion floor, did a bit of subfloor prep, and then laid the new CF.

u2191 Subfloor after prep.

For tools and materials, see: DIY Dad’s Tools & Materials Guide Vol.2 u2014 Cushion Floor Installation.

I used a wood-grain pattern CF. First, cut the sheet slightly larger than the area (about 3cm extra on each side), trim to fit, then spread CF adhesive on the subfloor.

u2191 Spreading CF adhesive.

u2191 Spreading CF adhesive u2014 continued.

Laying the Cushion Floor

After the open time, press the CF down. Roll it from one end toward the other with a floor roller to bond it without trapping air bubbles. Trim the edges to fit the wall line, then repeat for the remaining sections.