Seima laundry sinks buying guide
The Seima laundry sinks on this page are two designs: the Eva, a 45 litre white ceramic sink, and the Kubic, a square-edged stainless steel sink in 35, 45 and 70 litres. The choice between them is the look of the laundry. Choose the Eva for a classic or Hamptons laundry, and the Kubic for a clean, contemporary one. After that it comes down to size, the tap hole and what is in the box.
Eva or Kubic
| Sink | Material | Capacity | Suits |
|---|---|---|---|
| Seima Eva | White ceramic | 45 litres | A classic or Hamptons laundry |
| Seima Kubic KL 35 | 304 stainless steel | 35 litres | A compact laundry |
| Seima Kubic KL 45 | 304 stainless steel | 45 litres | Everyday soaking and rinsing |
| Seima Kubic KL 70 | 304 stainless steel | 70 litres | Buckets, bedding and pets |
Laundry sink, laundry tub, laundry trough, utility sink and wash tub all name the same deep basin. Trough is the word many people search with. The National Construction Code calls the fitting a washtub and requires at least one in any house or apartment that has a laundry. A kitchen sink or washbasin cannot be counted as that washtub.
The Seima Eva ceramic sink
The Eva is a white ceramic sink with a Nanoglaze surface. The surface is smooth and glass-like, which makes grime and bacteria harder to hold on to, and the glaze also contains antibacterial elements baked into it. That makes cleaning easier, and the sink keeps its sheen. The Eva measures 620mm wide by 550mm deep, holds 45 litres and has a 35mm rim. It suits a Hamptons laundry, and its size also lets it double as a wash basin for guests, a baby bath or a place to wash a pet.
The Eva is made of vitreous china, comes with a 90mm stainless steel basket waste and has no overflow. It is made with one tap hole or none, so decide on the tap before you order. It mounts above the counter or inset, with the rim sitting on the benchtop. The benchtop cut-out is 570mm wide by 510mm, and the benchtop must be at least 600mm deep.
Ceramic dimensions vary by up to 5mm from the nominal figures. Hold the actual sink against the bench and mark the cut-out from it, and do not cut from the drawing alone. Fix the sink with silicone sealant and not an epoxy adhesive, and seal the waste to the basin with silicone so the join is watertight.
The Seima Kubic stainless steel sinks
The Kubic has square lines and a silk satin finish, which suit a minimalist, contemporary laundry. The steel is 1.0mm thick premium 304 grade. The bowls are extra deep at 240mm, with square corners that are easy to clean, and a large built-in tap platform sits beside the bowl. The rim is flat and sits flat on the benchtop. Sound deadening is built in, and each sink includes a basket waste. The same deep bowl also suits an outdoor kitchen or a pantry, so it is not only a laundry sink.
| Sink | Bowl size | Depth | Capacity |
|---|---|---|---|
| Kubic KL 35 litre | 400mm by 400mm | 240mm | 35 litres |
| Kubic KL 45 litre | 500mm by 400mm | 240mm | 45 litres |
| Kubic KL 70 litre | 700mm by 400mm | 240mm | 70 litres |
All three Kubic sinks share the same 400mm bowl width and the same 240mm depth. The sizes differ in length, so the choice is a question of bench length and how much you wash at once. The 35 litre suits a narrow bench. The 45 litre covers most laundry routines. The 70 litre is the call for buckets, bulky bedding, sports gear and washing a pet, and it needs the most bench.
The Kubic is made with one tap hole or none, and with or without an overflow kit. The overflow, where it is fitted, sits at the front of the sink, opposite the tap platform. Check the product page for the version you are buying, because the sink is made with or without the overflow kit.
How large and how deep
Laundry sinks are sized in litres. Litres tell you how much the bowl holds. Depth decides whether a bucket fits under the tap and whether the water stays in the bowl while you work, so look at both. Every sink on this page is a single deep bowl, which suits most households: one uninterrupted basin for soaking and hand-washing, with room to fill a bucket, and only one drain to plumb. A double bowl suits a laundry that runs two tasks at once, but it needs the bench length and the second drain, and one large bowl is often the better answer than two small ones.
Ceramic or stainless steel
Stainless steel is the practical call for most laundries. It is light, it resists rust and heat, and a dropped bucket does it no harm. Thicker steel dents and flexes less. Ceramic is the better match when the look is classic. The surface is hard and non-porous, so it resists scratches and stains and holds no odours, but it is heavy, the cabinet beneath has to carry the weight, and a heavy object dropped on the rim can chip it. White ceramic also shows heavy staining and needs careful cleaning.
For the full range of each material, see ceramic laundry sinks and stainless steel laundry sinks.
What grade 304 means
Grade 304 stainless steel is about 18 percent chromium and 8 percent nickel. That gives it corrosion resistance, though no stainless steel is completely rustproof. Thicker steel dents and flexes less, and it sounds less tinny when something heavy lands in the bowl. The silk satin finish on the Kubic hides scratches and water marks better than a mirror polish would, which suits a sink that is used hard every week.
Fitting the sink to the bench
A top-mount sink, also called an inset or overmount sink, sits in a cut-out with its rim resting on the bench. It works with almost every bench, including laminate, timber and stone, and the rim covers the cut edge, which protects an absorbent bench from water. It is also the easier sink to replace. Debris can collect along the rim, and the silicone there can peel and let water into the cabinet, so check it when you clean. Silicone around the sink needs replacing every three to five years.
None of the sinks on this page is an undermount sink: the Eva mounts above the counter or inset, and the Kubic has a flat rim that sits on the benchtop. An undermount sink needs a waterproof solid bench such as engineered stone, granite, marble or concrete, and the stainless steel laundry sinks page lists the sinks made for that. Measure the cabinet or bench opening before you pick a sink. The Eva needs a cut-out of 570mm by 510mm and a bench at least 600mm deep. For the Kubic, fix the sink with silicone sealant and not an epoxy adhesive, as for the Eva, and use the actual sink to mark the opening, because dimensions on a drawing can differ from the product you receive.
Tap hole and waste
Both designs come with a single tap hole or none. A single tap hole takes a sink mixer. No tap hole suits a wall-mounted tap, and then the wall has to be plumbed for it. Choose the tap before you order the sink, because the tap hole is set when the sink is made. Laundry taps are the matching category.
A basket waste comes in the box with every sink on this page: a 90mm stainless steel basket waste with the Eva, and a designer basket waste with the Kubic. The Eva has no overflow. The Kubic is the one to choose if you want one.
Caring for a Seima sink
Clean the Eva with a damp cloth, and keep abrasive cleaners, liquids and pastes away from it. Clean the Kubic with warm water, a mild detergent and a soft cloth, following the grain, then dry it with a microfibre cloth to prevent water spots. Keep steel wool, bleach and chlorine-based cleaners away from stainless steel. Look under the sink each month for leaks and moisture.
Other sinks and units
If you want a sink that arrives on its own cabinet, see laundry sink and cabinet units. For a tight room, small laundry solutions is the page to start with. Black sinks are in black laundry sinks. Other makers have their own pages: Clark laundry sinks, Caroma laundry sinks, Fienza laundry sinks and the Oliveri laundry collection. The whole group is in laundry sinks.
Match the sink to the laundry
| If your laundry has | Choose |
|---|---|
| A classic or Hamptons look | The Eva ceramic sink |
| A clean, contemporary look | A Kubic stainless steel sink |
| A narrow bench | The Kubic 35 litre |
| Everyday soaking and rinsing | The Kubic 45 litre or the Eva |
| Mop buckets, bedding or a pet to wash | The Kubic 70 litre |
| A laminate or timber bench | Either sink, top-mounted |
| A wall-mounted tap | A sink made without a tap hole |
Before you order
Run four checks. Measure the bench opening and the depth of the bench. Choose the tap and the tap hole together. Decide if you want an overflow, which means a Kubic. Confirm that the finish suits the look of the room, white ceramic or satin stainless steel.
