Fundo Primo Shower Kit

Product Info

The wedi Fundo® Primo® Shower System, like all wedi Shower Systems, offers full warranty coverage thanks to its complete and natural waterproof core and range of specially engineered components. The Fundo® Primo® is internally waterproof due to its wedi XPS foam‘s closed cell structure, and naturally protects against mold or mildew like every wedi XPS foam based product.

It is fast and clean to cut to fit custom designs while prefabrication reduces installation time significantly. The base features a strong and pre-sloped surface, allowing for tiling immediately whether you choose mosaic or large format tiles. The wedi Fundo® Primo® is primarily made to work in shower designs including a wedi curb.

Pre-sloped extension panels are available so that no limit exists for creating any size or shape for custom shower designs. The Fundo® Primo® is insulating, creating a thermal barrier that can prevent cold from transferring through the tiled surface, and makes floor heating systems more efficient. It also has outstanding moisture and water exposure control compared to traditional mortar bed installations or other currently known methods for building showers, including the use of sheet or liquid waterproofing membranes which can be very thin and vulnerable or they may offer water absorption into thin-set bonded seam areas.

Kit includes:

  • 1 wedi Fundo® Primo® Shower Base (Several Shower Base options available)
  • 5-6 wedi 36 in. or 48 in. x 60 in. x 1/2 in. Building Panels (depending on kit)
  • 8-9 10.5 oz tubes of wedi Joint Sealant (depending on kit)
  • 1 wedi Curb, Lean
  • 1 wedi Fundo® Click and Seal™ Drain Kit
  • 1 wedi Fastener Kit (1 screws/washers 100 count box)
  • 1 wedi Corner Putty Knife
  • 1 wedi Mixing Valve Flexi Collar
  • 1 wedi Flexi Collar

Optional add-ons like soap niches, seats, and benches can be purchased a la carte.


Fundo Primo Installation

Ghost Accordion

Displays nothing

Installation Manual, Requirements/Limitations and Warranty
Product Approvals & Certification

Approvals and certificates applicable to entire Fundo® Shower System incl. wedi Building Panel:

City of New York, MEA 912-52-SM

Fundo® Shower Systems & Building Panels: ICC PMG 1189 (for USA & Canada) – Download Here

Meets all applicable ANSI/ISO Standards incl. ANSI 118.10 and IAPMO PS106

TCNA handbook recognized for wall, floor, countertop, & more applications

City of Los Angeles Approval M-100017

BBA (British Board of Agrement)


CE Marked

Diverse State Approvals

SAI Global Watermark Certified (Australia & New Zealand)

Codemark Certified (Australia & New Zealand)

Close Accordions

Technical Performance Data

Tensile Strength
65 psi
Shear Strength
Under conditions required in ANSI A118.10-1999
4 week Shear Strength Dry: 216 psi 12 week Shear Strength Dry: 217 psi 100 day Shear Strength Wet: 201 psi
ASTM D4068 / ANSI A118.10-1999
Waterproofness of Assembly
Passed, wedi Fundo Kit assembly (complete system)
Fungus/Bacteria Resistance
Passed, No Growth
Linear Variation
AC 159/ASTM 1037-39
Passed, less than 0.07%
Floor and Trench Drain Compliance
ASME A112.18.2
Passed, Compliant (ICC PMG 1189)
Seam Strength
ASTM D751-11 (requirement 8 lb/in width)
Passed, 36.4 lbs

Product Sizes

For product retail pricing, please see our Illustrated Retail Price List (USA or CA), available in the downloads section below.

Item Number
Fundo® Primo® Kit 36x36
36 in. x 36 in. (914 x 914 mm)
1 pc
Fundo® Primo® Kit 36x48
36 in. x 48 in. (914 x 1219 mm)
1 pc
Fundo® Primo® Kit 36x60
36 in. x 60 in. (914 x 1524 mm)
1 pc
Fundo® Primo® Kit 36x72
36 in. x 72 in. (914 x 1830 mm)
1 pc
Fundo® Primo® Kit 36x72 Offset
36 in. x 72 in. (914 x 1830 mm)
1 pc
New! Fundo® Primo® Kit 42x42
42 in. x 42 in. (1066 x 1066 mm)
1 pc
Fundo® Primo® Kit 42x60
42 in. x 60 in. (1066 x 1820 mm)
1 pc
Fundo® Primo® Kit 42x72
42 in. x 72 in. (1066 x 1830 mm)
1 pc
Fundo® Primo® Kit 48x48
48 in. x 48 in. (1219 x 1219 mm)
1 pc
Fundo® Primo® Kit 48x60
48 in. x 60 in. (1219 x 1524 mm)
1 pc
Fundo® Primo® Kit 48x72
48 in. x 72 in. (1219 x 1830 mm)
1 pc
Extension Panels
Item Number
Straight extension panel, Pre-grooved
48 in. x 24 in. sloped 1/4 in./ft (610 x 1219 mm sloped 2%)
1 pc
Straight extension panel "lean", pre-grooved
72 in. x 12 in. sloped 1/4 in./ft (1829 x 305mm sloped 2%)
1 pc

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