Why the wall-hung format changes the paperwork

A wall-hung basin carries its own weight on the wall structure rather than on a pedestal resting on the floor. That single difference pulls three separate trades into the decision: the framing or masonry behind the basin, the plumber setting the waste and supply outlets, and the finishes team tiling around the fixing face. Documenting the basin alone is not enough; the note has to describe how it meets the wall.

Model 1004B fixes to the wall through a back panel, which means the finished wall face must be flat, fully tiled or otherwise completed, and strong enough to take the fixing. Where a project uses a stud partition with a concealed carrier, the fixing positions have to be set before the board goes on. Record that sequence in the procurement schedule, not in a site conversation two weeks before handover.

The product data worth putting in writing

The published page for 1004B describes a vitreous ceramic basin with a glossy glaze, a trapezoid outline, a single tap hole, and an overall size of 510 × 420 × 380 mm. Those figures are useful for space planning, but they are not installation data. Before the order, ask the supplier to confirm from the current technical sheet:

• The tap-hole diameter and the faucet reach that suits the bowl depth, so the spout lands over the wash area rather than at the front lip.
• Whether an overflow is present and how it is connected, because that decides the waste set you order with it.
• The waste outlet position relative to the finished wall face and the floor level, checked against the plumber's setting-out drawing.
• The fixing method and any bracket or hardware supplied with the basin versus what the site must provide.
• Clearances to mirrors, vanity units and adjacent partitions once tiles and adhesive are included in the dimension.

Sizes quoted on a product page and sizes on a technical drawing are not always stated on the same basis — with or without the back panel, before or after the wall finish. Take one authoritative number from the current data sheet and put that single figure in the purchase order, the drawings and the snag list.

How 1004B sits inside a matched suite

Specifying basin, WC and bidet from one series removes most of the visual mismatch complaints that appear at handover. The 1004 range covers several formats, so the same ceramic body and glaze can be repeated across bathrooms with different layouts:

The trap arrangement on the WC is the item most often discovered too late. The 1004A page describes two plumbing options — a wall drain and a floor drain — with different rough-in distances. Whichever applies to your building must be confirmed against the as-built or setting-out drawing before ordering, because changing a floor drain to a wall drain after the screed is down is a costly variation.

Ordering quantities and spares for a project

For multi-unit work, split the order documentation into three lists rather than one: fixtures, concealed parts (waste sets, carriers, stop valves, supplies), and site-supplied items (fixings, sealant, tapware). Wall-hung basins are frequently quoted as a bowl only, and the difference between "supplied" and "site-supplied" is where budget overruns quietly accumulate.

• Order against a room-by-room schedule with a fixture code per bathroom type, so a quantity can be traced to a location when something arrives damaged.
• Hold spare bowls for the rooms most exposed during the construction period. On ceramic work, breakages are far more common in the build phase than in use.
• Keep one complete set of packaging and labels with your handover file; batch and model references matter when a replacement is needed years later.
• Photograph the rough-in — outlet position, height, wall build-up — before the wall is closed. That single record resolves most installation disputes.

Glaze quality and the maintenance case

Procurement teams are often asked to justify a more expensive basin. The practical argument is the glaze. 1004B is described as having a dense glazed surface that resists water staining and limescale, which in a hard-water region means less aggressive cleaning over the life of the asset. Housekeeping schedules built around harsh acidic cleaners shorten the life of chrome tapware and sealants far more quickly than they remove scale from a poor glaze.

Write the cleaning recommendation into the handover pack at the same time you specify the fixture. A basin that needs pH-neutral cleaner and a soft cloth is a cheaper asset than one cleaned with abrasive powder, regardless of the purchase price.

Coordinating the order through one supplier

When ceramics, vanities, lighting and wall finishes come from separate vendors, the coordination burden falls on the project team. Grouping sanitary ware with the rest of the fit-out under a turnkey solution means one party holds the schedule, the packing list and the replacement channel. SANTERSON works on villa, hospitality and office projects and lists design consultation, material selection, manufacturing and project coordination as part of that scope.

Where a project needs a non-standard size, finish or branding, custom and OEM service covers bespoke material finishes and private labelling; confirm the minimum order quantity and current capacity for your specific item before it enters the specification. For freight, logistics and door-to-door delivery covers sea, air and rail forwarding with the associated customs paperwork — agree Incoterms, insurance and delivery point in writing, since duties and transit times vary by shipment. Installation and after-sales support is available as a separate line; warranty terms and response commitments should be read against the contract rather than assumed.

What to check on arrival, before the tiles go up

Inspection is easiest when the cartons are still in the loading area. Check each bowl for chips on the rim and on the underside of the back panel — a hairline crack in the fixing area will not show until the basin is loaded against the wall. Confirm that the tap hole is drilled to the size your selected faucet needs, and that the waste opening matches the set you ordered.

Hold the basin against the finished wall face at the height recorded on the drawing. This takes a minute per unit and catches the two most common mismatches: an outlet that does not line up with the plumber's waste, and a back panel that sits proud of an uneven tiling substrate. Both are fixable before the adhesive is mixed and neither is fixable afterwards.

A pre-order checklist

• Confirmed technical sheet with one authoritative set of dimensions, dated and referenced in the purchase order.
• Waste and supply outlet positions marked on a drawing signed off by the plumber and the wall-framing contractor.
• Tapware selected — reach, height and mounting type — matched to the single tap hole.
• Trap arrangement for the paired WC verified against the actual drain location.
• Fixing hardware identified as supplied or site-supplied.
• Spare quantity agreed, with a storage location that is not the same room under construction.
• Cleaning guidance recorded in the handover documentation.

None of these items are difficult. They simply have to exist on paper before the basin is ordered, because every one of them becomes a variation once the wall is closed and the tiles are laid.

Related fixtures in the same range

If 1004B is under review for a project, it is worth checking the alternatives at the same time so the whole building does not default to one format by habit. Wall Hung Ceramic Basin 1051B, Modern Wall Mount Bathroom Sink offers a different profile for wall-mounted layouts, while integrated basin countertops suit vanities where a seamless bowl-and-worktop surface is preferred. Each format carries its own installation notes, so the same documentation discipline applies whichever one you choose.

To confirm dimensions, rough-in details and current availability for 1004B on your project, contact the SANTERSON team through the contact page with your room schedule and drawings.