Altesora
Room specification
Curbless primary bathroom in warm porcelain
- Room
- Bathroom
- Products
- 8
- One of each
- $929.99
- Issued
- August 17, 2026
Specification study. This is the materials list Altesora would specify for this room. Every product in it is real, priced, and orderable. The room has not been photographed — the imagery on our website for this space is a generated concept image, not a record of built work, and it is deliberately not included in this document.
The room this specification describes is published at https://altesora.com/spaces/curbless-primary-bathroom
Materials, in build order
Listed from what goes against the substrate to what you finally see. The surface beside each product is where it went, and the option named is the one the SKU and price below refer to.
| Prices, SKUs, and lead times were current on August 17, 2026 and are confirmed at the point of order. This document is a specification, not a quotation. | |||
| Surface | Product | SKU | Unit price |
|---|---|---|---|
| Shower walls and floor | Lastra large-format porcelainPorcelain · Matt600 × 1200 mm — Warm grey15.5 sq ft per box · 2 per boxLarge format keeps joints sparse, so the eye reads the stone rather than the grid. | ALT-LAS-6012-WG | $8.99per sq ft |
| Behind the tile | Bonded sheet waterproofing membranePolyethylene composite · Fleece-laminated1 m × 5 m roll53.8 sq ft per boxBonded to the substrate as one continuous system, with banded corners and seams. | ALT-MEM-05 | $89per roll |
| Under the shower floor | Pre-sloped shower panExtruded polystyrene · Cement-coated900 × 900 mm — Centre drainFactory slope removes the guesswork of forming a fall by hand. | ALT-PAN-0909C | $249each |
| Shower floor | Stainless linear shower drainStainless steel · Brushed600 mm — Tileable insertSet flush with the finished tile so the floor stays uninterrupted. | ALT-DRN-600T | $329each |
| Shower walls | Recessed shower nicheExtruded polystyrene · Cement-coated300 × 600 mm | ALT-NCH-3060 | $129each |
| Under the tile | Large-format tile mortarCementitiousWhite — 20 kg | ALT-MOR-W20 | $42per bag |
| Joints | High-performance groutCementitious · MattWarm grey — 4.5 kg | ALT-GRT-WG | $34per bag |
| External edges | Brushed bronze tile edge profileAnodised aluminium · Brushed bronze8 mm — 2.5 m length | ALT-TRM-BZ08 | $49per length |
The figure above is one unit of every priced item, which is a floor rather than an estimate — a real room needs more than one box of tile.
End of schedule — 8 products, priced as of August 17, 2026. A specification, not a quotation; prices and lead times are confirmed at the point of order.
Why it was specified this way
A curbless entry is decided long before the tile arrives. The floor has to be recessed and re-sloped to a linear drain set flush with the finished surface, and the whole wet area has to be waterproofed as one continuous system rather than a set of separate products hoping to co-operate.
Large-format porcelain keeps the grout joints sparse, which is what makes the room read as calm. It also demands a flat substrate — lippage that would disappear on a small mosaic is obvious across a 1200mm tile, so the levelling work is where the time goes.
The build behind it
Curbless primary bath in large-format porcelain, Leesburg, VA, September 2025. The case study covers the conditions behind this room and how it was built, at https://altesora.com/portfolio/curbless-primary-bath
Having this priced for your room
Send us the room and we will confirm quantities against your dimensions, check the specification against your conditions, and price the materials and installation together. Altesora works across Leesburg, VA, Loudoun County, VA, Fairfax County, VA, and the rest of Northern Virginia.
- Enquiries
- https://altesora.com/contact
You are welcome to include this specification in a design presentation, specification packet, or submittal, and to name Altesora as its source. The terms that apply, including what may not be done with our specifications and images, are at https://altesora.com/legal/product-disclaimerRead the terms