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Wet Area Details

Bathrooms that do not drip onto the ceiling below.

Start chapter 1 freeEnrol in this course
30050±0.000LANTAI KAMAR−0.020LANTAI KMKERAMIK DINDING 20×40+ PEREKAT SEMEN T.5COATING SEMEN-POLIMER 2 LAPISNAIK 300 DARI LANTAI KMPLESTER + ACI KEDAP AIRSEALANT SILICONE ANTI-JAMURDI SUDUT DINDING–LANTAIBATA MERAH ½ BATUPLESTER 2 SISIKAIN PENGUAT DI SUDUT100 + 100 MMKERAMIK 30×30 + NAT EPOXYPEREKAT SEMEN T.5SCREED MIRING 1% KE FLOOR DRAINCOATING KEDAP AIR 2 LAPISPELAT LANTAI T.120, TURUN 50FLOOR DRAIN 2 TAHAP+ PIPA PVC Ø50ILUSTRASI CONTOHBUKAN UNTUK KONSTRUKSI1K-DBSWET AREA DETAILSSKALA 1:5
Level
Intermediate
Lessons
18
Time
1h 58m
Rating
4.8
Learners
12.8K
Updated
Sep 2026

After this course

What you'll be able to do yourself.

The bathroom is the smallest room with the most complaints. This course breaks down wet floor layers, dropped slabs, the fall to the floor drain and pipes passing through the slab. You learn to draw them properly and to check them before the tile covers everything.

  1. 1Stack a wet floor from slab to tile.
  2. 2Set how far waterproofing rises on walls and in the shower zone.
  3. 3Work out slab drop, screed fall and waterproofing area.
  4. 4Detail sleeves, puddle flanges and fire collars on pipes through a slab.
  5. 5Run a flood test and know when tiling can start.

Good for

  • Drafters detailing toilets for apartments, hotels and houses.
  • Junior architects handling plumbing coordination.
  • Site supervisors on finishing work.

Best taken after

Full syllabus

Chapter by chapter, nothing hidden.

18 lessons, 1h 58m in total. Chapter 1 is open to everyone.

Chapter 1The wet floor, layer by layerFreeWhy bathrooms leak, and which layers hold the water back.6 lessons / 36 min
  1. Tile is not waterproof5 min
  2. Bathroom words4 min
  3. Stack the bathroom floor6 min
  4. Corners, upturns and the shower zone5 min
  5. Find the faults in the wet floor6 min
  6. Chapter 1 test10 min
Chapter 2Dropped slabs, falls and floor drainsWater must run to one point, and the space for that starts with the structure.6 lessons / 41 min
  1. Dropped slabs and floor steps5 min
  2. Slide the wet floor parameters5 min
  3. Work out falls and WP area7 min
  4. Draw your wet floor8 min
  5. Water back in the bedroom6 min
  6. Chapter 2 test10 min
Chapter 3Pipes through the slabOne hole in a slab has to stop water, smell and fire at once.6 lessons / 41 min
  1. Sleeves and the pipe gap5 min
  2. Stack the pipe penetration6 min
  3. Find the faults in the penetration6 min
  4. Draw the pipe penetration8 min
  5. The forgotten sleeve6 min
  6. Chapter 3 test10 min

Lesson kinds

  • Concept
  • Glossary
  • Layer Stack
  • Spot the Fault
  • Chapter test
  • Slide the Parameter
  • Calculate
  • Draw the detail
  • Site case

Get a feel for it

You practise, you don't just watch.

Try it: Slide the ParameterIllustration, not for construction
30050±0.000LANTAI KAMAR−0.020LANTAI KMKERAMIK DINDING 20×40+ PEREKAT SEMEN T.5COATING SEMEN-POLIMER 2 LAPISNAIK 300 DARI LANTAI KMPLESTER + ACI KEDAP AIRSEALANT SILICONE ANTI-JAMURDI SUDUT DINDING–LANTAIBATA MERAH ½ BATUPLESTER 2 SISIKAIN PENGUAT DI SUDUT100 + 100 MMKERAMIK 30×30 + NAT EPOXYPEREKAT SEMEN T.5SCREED MIRING 1% KE FLOOR DRAINCOATING KEDAP AIR 2 LAPISPELAT LANTAI T.120, TURUN 50FLOOR DRAIN 2 TAHAP+ PIPA PVC Ø50

Slide the value. The drawing follows, just like in the lessons.

Enough for the dry side of a bathroom. Walls in the shower zone usually need to go much higher.

Illustration, not for construction

Your creator

Taught by someone who still does the work.

Your creator

Nara Wijayakusuma

Architect, 12 years in practice

Teaches details the way studios use them: start from the problem on site, then down to the drawing.

Courses
5
Learners
110.1K

Other courses

About becoming a creator

Learner reviews

From people who took it.

4.8out of 5

1.1K reviews

  • 581%
  • 414%
  • 34%
  • 21%
  • 10%

  • Ardi Nugraha

    Site engineer

    The parapet detail is simple but right on target. My senior asked where I learned it.

  • Nadia Kusuma

    Interior architect

    Spot the Fault is addictive. Every drawing looks right until you check the membrane height.

  • Dimas Prakoso

    Architecture student, final year

    Layer Stack made the waterproofing build-up stick in my head. It lands better than watching a video.

Questions that come up

About this course.

All questions

01

What can I try for free?

All of chapter 1, "The wet floor, layer by layer": 6 lessons, about 36 min. No card needed. If it isn't for you, stop there.

02

What should I know before starting?

It helps to have finished Roof and Parapet Details first. It isn't locked, but the chapters assume you know that material.

03

Subscribe or buy this course?

Pro is Rp149.000 a month and opens every course, track, exam and certificate. Buying this course is Rp319.000 once and it stays yours. If you plan to take more than two courses, Pro usually comes out cheaper.

04

Do I get a certificate?

Certificates come from track exams, not single courses. This course counts toward Core Details, Studio-Ready Drafter. The exam runs 60 minutes and you pass at 75 percent.

05

Can I use these drawings on a project?

No. Every drawing in the course is an illustration for learning, not for construction. Use them to understand the logic, then follow your firm's standard and your engineer's drawings.

Part of

This course counts toward these tracks.

Where next

Courses people often take next.

All courses
  • datFlagship

    Core Details / Beginner

    Roof and Parapet Details

    Roof edges that stay dry, from the sheet to the site.

    Nara Wijayakusuma
    Lessons
    28
    Time
    2h 55m
    Rating
    4.9
    Learners
    36.4K
K-DBSStart with chapter 1

Wet Area Details free.

No card needed. If it suits you, go on with Pro or buy this course.

Start chapter 1 freeSee plans, Rp149.000