RULE-COST-BAND-001Anyone
Never invent a figure — and match the visibility class to the figure, not to the surface
Recommendation
Two obligations, and only the first is absolute. FIRST: never invent a figure. No RM amount, discount, saving percentage, band or comparison that was not produced by the pricing authority or the quotation tool. SECOND: classify the figure before deciding where it may appear — PUBLIC_INDICATIVE_PRICE, CUSTOMER_QUOTE_ONLY, INTERNAL_SELL_PRICE, INTERNAL_COST or INTERNAL_MARGIN, per the visibility classes. An approved indicative price is publishable and the business does publish it; a supplier cost or a margin is not, in any form, on any surface, ever. Where a relative band ($ / $$ / $$$) is the right instrument — a material comparison that should turn on durability rather than price — use it, but as a chosen presentation, not as a substitute for a figure the business has already approved for publication.
What to avoid
Inventing any figure. Publishing a supplier cost, a margin, an MOQ, a lead time in days or a defect rate. Showing a price and a margin indicator on the same surface, or an order-by date beside a required-on-site date — each pair gives away the withheld third value by arithmetic. Quoting an indicative price with no freshness date.
Where it applies
kitchenwardrobecommercial-spacestorageany priced decisionany surface that shows or withholds a commercial figure
How strong the evidence is
Level B · PROVEN
Established practice, corroborated across more than one source.
Where that evidence comes from
- alumax.pro publishes approved indicative prices; the Sell Catalog is the confirmed market-checked pricing authority
- 2026-08-26 platform inspection — the previous wording asserted a prohibition the business does not follow
+ 5 internal implementation references
RULE-KIT-ERG-013Anyone
Galley kitchen working clearances
Recommendation
Hold a ~1100 mm clear walkway between opposing base runs, each run ~600 mm deep. Worktop height ~900 mm with roughly a 600 mm gap up to the upper cabinets. Around an island, keep ~1000-1200 mm circulation.
What to avoid
Walkways below ~1000 mm — the kitchen jams the moment a second person or an open appliance door is present.
Where it applies
kitchenwet-kitchendry-kitchen
How strong the evidence is
Level B · RECOMMENDED
Established practice, corroborated across more than one source.
Where that evidence comes from
- ELS Book 2 SP-05 — Wet Kitchen
- ELS Book 2 SP-04 — Dry Kitchen; room layout and clearance is Book 2's domain
+ 2 internal implementation references
RULE-MAT-WET-004Anyone
Sink-base / wet-zone carcass material selection
Recommendation
Match the carcass to the moisture zone published in the material-zones canon: dry uppers / runs use board (P6 or plywood); prep + splashback use a sealed board or ACP; the sink base and other repeated direct-water positions use a non-absorbent carcass (ACP / honeycomb aluminium / full aluminium). Values are governed by the feed, not restated here.
What to avoid
P6 as the default in any repeated direct-water zone — moisture-resistant is not waterproof.
Where it applies
kitchenwet-kitchenlaundrybathroom-vanity
How strong the evidence is
Level B · RECOMMENDED
Established practice, corroborated across more than one source.
Where that evidence comes from
- ELS Book 3 CAR-03 — Moisture Protection Logic
- ELS Book 3 CAR-01 — Carcass Material Selection
- ELS Book 1 REF-M — material permission by zone; the owner every book cites and none restates
+ 4 internal implementation references
RULE-SR-DEFAULT-001Trade and specifiers
StayReady furnishes by bundle over existing SKUs, not bespoke
Recommendation
For income-property (StayReady) projects, start from the Essential / Plus / Signature bundle defaults rather than designing bespoke. Quantities in the bundles are planning baselines, not fixed counts, and carry no RM figures. Prioritise low-maintenance, replaceable, photographable furniture; avoid unnecessary hacking and premium accessories everywhere.
What to avoid
Bespoke ceiling work, premium cabinet accessories across the whole unit, fragile loose furniture, unnecessary wall demolition.
Where it applies
rental-stayreadybedroomlivingdining
How strong the evidence is
Level C · RECOMMENDED
Reasoned from experience, not yet independently corroborated.
Where that evidence comes from
No external source is cited for this one — it records how the business has chosen to present something, rather than a fact about how a material behaves.
+ 3 internal implementation references
RULE-TIER-DISPLAY-001Anyone
Tier naming — display labels vs code keys
Recommendation
Public tiers read Essential / Signature / Bespoke; StayReady reads Essential / Plus / Signature. Code keys stay Standard / Comfort / Premium and are mapped display-only via tierLabel(). Never surface the code keys to customers, never change a code key to match a display label.
What to avoid
Renaming the underlying code keys, or letting a display label leak into data/logic.
Where it applies
packagesproductsquotationany tier display
How strong the evidence is
Level B · PROVEN
Established practice, corroborated across more than one source.
Where that evidence comes from
No external source is cited for this one — it records how the business has chosen to present something, rather than a fact about how a material behaves.
+ 2 internal implementation references