The Foundation of a Good Shower
It’s easy to focus on the screen and tapware and forget the part of the shower that does the hard work: the base. The shower base is what channels water to the waste and keeps it out of your subfloor, so getting it right is one of the most important decisions in any Illawarra bathroom renovation. At Just Bathrooms, our Wollongong showroom team helps homeowners choose between pre-formed bases and fully tiled bases, and weigh up the cost, look and longevity of each.
Acrylic, Fibreglass & Polymarble Shower Bases
Pre-formed shower bases are the most popular choice for their reliability and value. Acrylic and polymarble bases offer a smooth, easy-to-clean surface with a pre-set fall to the waste, removing much of the risk of a poorly graded floor. Fibreglass-reinforced bases are durable and budget-friendly, making them a practical pick for family bathrooms and rentals across the South Coast. As a 100% Australian manufacturer of baths and shower bases, Decina is a go-to brand for quality pre-formed bases, with Fienza also offering a strong range. Browse our full showers collection to see the options.
Tiled Shower Bases & Tile-Insert Trays
For a seamless, high-end look, a tiled shower base lets you run the same tiles across the floor and into the shower with no visual break — ideal for the open, curbless showers popular in modern Wollongong renovations. The smart middle ground is a tile-insert tray (also called a tile-over tray): a pre-formed waterproof tray with a recessed top that you tile into, combining the reliable fall and waterproofing of a moulded base with the look of a fully tiled floor. Linear channel grates from DTA or floor wastes from Art Aust complete the look.
Getting the Size & Fall Right
Shower bases come in standard footprints — common sizes include 900x900mm, 900x1000mm and 1200x900mm — but the right choice depends on your room and how the screen meets the base. Square bases suit corner showers, while rectangular bases work well for walk-ins along a wall. Whatever you choose, the floor must fall evenly toward the waste so water drains cleanly and never pools. This is where a pre-formed base earns its keep, and where a tiled base relies on a skilled installer. Our team can match a base size to your layout and to the shower screen — including the curved and radius screens that pair with rounded bases.
Waterproofing: The Step You Can't Skip
No matter which base you choose, waterproofing is what protects your home — and in NSW it must comply with the relevant standards. A pre-formed base reduces risk because the waterproof surface is built in, while a tiled base depends entirely on correct membrane installation beneath the tiles. Quality systems from Ardex, Mapei and Bostik are the trusted choice for Illawarra renovations. For why this matters so much in our coastal climate, read our guide on waterproofing your bathroom.
See Shower Bases in Wollongong
Choosing a shower base is easier when you can see the materials and sizes in person. At our Unanderra showroom you can compare acrylic, polymarble and tile-insert options against your chosen tiles and screen, with expert advice on sizing, falls and waterproofing. Serving Wollongong, Shellharbour and the wider Illawarra for over 20 years, Just Bathrooms can help you build a shower that stays leak-free for the long haul.
