The DD403 is a stainless steel single sink with drainboard built for top mount (drop-in) installation. A round single bowl sits beside a one-piece sloped drainer, so washed dishes air-dry above the sink instead of on the worktop. The body is pressed from 1.2 mm 304 or 316 stainless steel with a brushed interior finish, qualified 1 pc per carton from a minimum order of 20 pcs. Where worktop space is tight, it is specified as a single basin kitchen sink with drainboard that replaces a separate bowl and drying rack.
DD403 fitted as a drop-in single bowl kitchen sink with drainboard in a timber-framed kitchen.
Material
304 or 316 stainless steel
Steel thickness
1.2 mm (16-gauge class)
Installation
Top mount / drop-in
Bowl layout
Round single bowl + drainer
Interior finish
Brushed natural steel
MOQ & packing
20 pcs · 1 pc per carton
Why This Single Bowl Kitchen Sink With Drainboard Works
Six design decisions behind the DD403 — each one aimed at fewer drips on the worktop and a shorter wash-up cycle.
One-piece sloped drainboard
The drainer is pressed into the same sheet as the bowl, with a gentle fall toward the basin. Run-off returns to the sink instead of pooling under a crockery rack.
Round single bowl, soft corners
A generous round corner radius removes the tight seams that trap food residue, so this single basin sink with drainboard is quicker to wipe down after service.
Deep working basin
Depth is sized for stock pots, baking trays and roasting pans, which keeps large cookware out of the dishwasher queue in busy kitchens.
304 or 316 grade body
Standard 304 for kitchens and food-prep areas; 316 is available for coastal sites, marine galleys and chloride-heavy environments.
Coated, sound-dampened underside
The back of the deck carries a sprayed coating that absorbs the drum-like ring of thin steel and controls condensation on the underside of the bowl.
OEM and ODM ready
Custom sizes, bowl positions, brushed or matte finishes, laser logo engraving and retail packaging are all available on this single sink with drainboard.
Where This Drainboard Sink Is Used
The DD403 is specified for warm-climate residential kitchens, outdoor cooking areas and light commercial wash stations. Buyers in these markets choose a drainboard kitchen sink because bench space, not bowl volume, is usually the constraint.
Outdoor & utility wash station
Outdoor washing stations and garden kitchens
Mounted on a stainless frame, the same 1 pc per carton sink becomes a free-standing wash point for gardens, terraces and staff areas.
Tropical & African kitchensTerracotta and tile worktopsSouth American kitchensPainted tile and green stone topsCovered outdoor kitchensBrick grill and pergola settingsMiddle East kitchensPatterned tile and brass detailing
Every unit is inspected against these five views, so what you approve on the sample is what arrives on the pallet.
Plan viewOne round bowl plus a full-length drainer, pressed from a single blank with no welded drainboard joint.Body formRolled rim and continuous radius corners that stay true batch to batch.Drainer deckEvenly pitched grooves move water across the board and back into the bowl.Rim & undersideA thin, uniform rim edge keeps the drop-in lip tight to the worktop; the coated underside handles condensation.UndersideSprayed backing across the whole deck for quieter filling and controlled condensation.
Drain Assembly and Optional Accessories
Stainless strainer body with rubber sealing gasket and brass centre post.
The DD403 is supplied with a stainless steel basket strainer waste: a removable perforated basket that lifts out for cleaning, a rubber gasket that seals against the bowl outlet, and a brass centre post that resists seizing far longer than plated steel.
Removable basket strainer waste, easy to lift and rinse
Accessories are an optional choice at order stage
Drain pipe kit and stand frame available on request
Custom drainer position developed as a tooling project
A faucet is not included with the sink. Tell us the tap model you are specifying and we will match the pre-drilled hole layout, or supply a faucet as an optional accessory. Full options are listed on our contact page.
DD403 Technical Specification
Values below are the standard build for this model. Sizes, bowl positions, thickness and finishes can be revised for OEM and ODM programmes.
Product name
Stainless steel single sink with drainboard
Item number
DD403
Material
Stainless steel / 304 / 316
Thickness
1.2 mm pressed body
Interior finish
Brushed
Installation
Top mount / drop-in
Bowl configuration
Round single bowl with drainer board
Colour
Natural stainless steel finish
Function
Durable and easy to clean
Attribute
Draining board
Accessories
Optional choice
Packing
Carton, individually wrapped, 1 pc per carton
Carton size
750 × 400 mm (single pack)
MOQ & lead time
20 pcs · 4–6 weeks standard
Carton, Pallet and Bulk Supply
Single sinks with a drainer board are bulky to ship, so packing quality decides how many arrive undamaged. The DD403 leaves the line individually wrapped, edge-protected and strapped.
Palletised stock ready for container loading in the Samsink warehouse.Corner-protected carton with blue PP strapping, marked with item number and size.
1 pc per carton — individually wrapped, with the model printed on the outer box.
Blue PP strapping on every carton to stop the flap lifting in transit.
Pallet loading plan and container load calculation issued before shipment.
Retail-ready packaging available for brand owners, including printed artwork and inserts.
Dual production bases in Foshan (China) and Bangkok (Thailand) for faster regional fulfilment.
Buying Guide: Direct Answers
The four questions buyers ask most often before specifying a drainer board sink.
What is a sink with a drainboard?
A sink with a drainboard is a single unit in which the washing bowl and a grooved drying area are pressed from the same sheet of stainless steel. Water shed from drying crockery runs along the grooves and back into the bowl, so the worktop stays dry. It replaces the separate plastic drainer most households sit next to the sink.
Which side should the drainboard be on?
Put the drainboard towards your dominant hand and away from the hob, so hot pans are never passed over wet crockery. The DD403 is tooled with the bowl on the left and the drainer on the right; a mirrored left-hand drainer can be developed as a custom mould project.
Is a single bowl drainboard sink better than a double bowl?
For most households, yes. One wide bowl fits stock pots and trays that will not sit flat in a divided sink, while the drainboard provides the second working surface a double bowl would have given. A single basin sink with drainboard also leaves one continuous surface to wipe down, with no centre divider to trap debris. Choose a double bowl only when you routinely need two separate water volumes at once.
Can a drainboard sink be used outdoors?
Yes, provided the grade suits the site. Use 304 stainless steel for covered outdoor kitchens, and step up to 316 where the sink is exposed to salt air, pool water or heavy chlorides. A coated underside is recommended outdoors because it limits condensation on the bowl.
Frequently Asked Questions
What are the customization options for this stainless steel single sink with drainboard?
We customise size, bowl shape, drainer position, thickness, surface finish, pre-drilled tap holes, accessories and packaging. Send us your drawing or target dimensions and we will confirm feasibility, tooling time and cost against the DD403 platform.
How long does it take to ship a custom drainboard sink?
Standard production on the DD403 runs 4 to 6 weeks from order confirmation, covering design sign-off, material procurement and the production cycle. Hand-made custom sinks can move faster, and moulded projects need tooling time on top. We confirm the schedule in writing before you place the order.
What is the minimum order quantity?
The DD403 is quoted from 20 pcs, packed 1 pc per carton. Mixed orders across finishes and accessory combinations are welcome, and we will advise the best container or pallet build once we know your target quantity.
Should I choose 304 or 316 stainless steel?
Choose 304 for domestic and general commercial kitchens — it resists food acids, heat and everyday cleaning. Choose 316 where chlorides are present, such as coastal properties, poolside kitchens, marine galleys and some industrial food plants.
Build Your Drainboard Sink Programme With Samsink
Samsink has manufactured stainless steel sinks since 1995, with production bases in Foshan (China) and Bangkok (Thailand), more than 500 in-house moulds, and a supply record of over 1,000 customers worldwide. Send us the sizes, finishes and volumes you are planning, and we will come back with a factory-direct quotation and a packing plan for your market.
