# Organizer Inserts: research notes

Date: 2026-10-25. Scope: trays, dividers and bins designed to go **inside** a drawer, cabinet shelf or closet shelf that already exists, to subdivide its interior — expandable/telescoping drawer dividers, fixed-grid organizer trays (cutlery, cosmetics, office, jewelry), modular/interlocking bin sets, side-wall-mounted inserts, and the "second-level" sliding tray that sits on a deep drawer's own frame above its contents. The taxonomy label "Organizer Inserts" bundles all rooms (kitchen, bathroom, bedroom, office) under one leaf; this register keeps one set of facets and lets `item_size_class` and `material` do the dividing an expert would do by room, because the real mechanical differences (fixed vs expandable vs modular, mount style, material upkeep) cut across rooms, not along them.

**Not in scope, and why**: kitchen cabinet/pantry organizers that mount to or sit inside a cabinet rather than a drawer (lazy susans, pot-lid racks, spice-shelf risers, under-sink stands) belong to the sibling `kitchen-organizers`; wall-, over-cabinet- or countertop-standing bathroom caddies belong to `bathroom-storage`; closet rods, hangers and hooks belong to `hangers`; standalone bins, boxes and baskets not built to sit inside another container belong to `storage-containers`; generic non-insert hardware (labels, bin clips, risers sold as accessories rather than dividers) belongs to `storage-organizer-accessories`. Where a product is genuinely an insert that happens to live in a kitchen or bathroom drawer (a cutlery tray, a cosmetics tray), it stays here — the room doesn't move it to a sibling, the fact that it goes inside a drawer does. I did not find any existing register for the overlapping siblings to check against (catalog.json shows them all `planned` except `bathroom-storage`, which is `in_progress` — presumably another agent, not read here to avoid cross-talk; if it later claims wall/countertop bathroom trays that's consistent with the boundary above).

Quote labels: **verbatim** = the sentence in quotation marks is in text I read myself, via `curl` plus a regex strip of tags/scripts, or inside a page's own JSON-LD/meta tags that I pulled with `curl` (not a model summary). **fetched excerpt** = the WebFetch tool's model summarised or reworded the page and I did not independently confirm the exact wording with `curl`. **search excerpt** = not used in this run (WebSearch's budget was exhausted before I started; no claim here rests on a search-engine snippet). A fetched-excerpt-only number does not go in `category.json` unless a second, independently curled source confirms it.

## Seed

Ran `seed.py --category organizer-inserts`:

- Example: bedsheets `weave` — "the expert split is often not the number everyone advertises. Thread count is the generic trap here. Weave is what changes how the sheet feels and sleeps."
- Persona: "An industrial designer, who thinks in materials, joins and what the manufacturer saved money on."

1. **The organizer-inserts equivalent of weave is mount style, not material.** The thing everyone photographs and advertises is the material (bamboo looks nicer than plastic) and the compartment count. The thing that actually changes how much the product holds and how it behaves is how it sits in the drawer: a loose drop-in tray, a side-wall-mounted insert, or — the one nobody markets loudly — a tray that rests its tabs on the drawer's own frame above whatever is already stored and slides sideways, turning one deep drawer into two usable layers (YouCopia's three DrawerFit products, verbatim; madesmart's Original Junk Drawer Organizer, verbatim). **Kept** as the `mount_style` facet, with a branch off `adjustability` since the expandable and second-level mechanisms travel together on every product I found.
2. **The industrial designer would notice the locking-teeth ratchet rail first**: it is the one part that does two jobs for free. A toothed rail lets the tray's two halves click outward and lock at a wider notch (the adjustment), and the same teeth brace against the drawer's frame so the tray does not slide around (the fixing) — no screw, clip or separate latch. YouCopia calls this "SlideLock" (verbatim, patent-pending per its own copy); Totally Bamboo's bamboo tray does the equivalent with "sliding side compartments" (verbatim). **Kept** as the mechanism description and the `adjustability` facet's `why_experts_care`.

Kept from this run: mount_style as the real "weave"-equivalent split; the locking-teeth rail as the mechanism's centerpiece. Dropped: treating `material` as the primary split on its own aesthetic merit, without tying it to the drawer-specific hand-wash-only consequence; a price-per-compartment derived metric, which is not something I found any evidence experts actually compute (unlike cost-per-serve in formulations categories).

## Sources and what each supports

### Brand spec sheets (universal retail / DIY organizing brands)

**YouCopia, DrawerFit® Sliding Drawer Tray** — https://youcopia.com/products/drawerfit-sliding-drawer-tray
- verbatim (pulled the page's own JSON-LD Product block with `curl`, not the rendered page — the page is a JS-heavy Shopify storefront and a plain fetch returns bundler code, not text): "Tray expands from 15" to 23" and includes two adjustable dividers"; "Locking teeth keep tray extended to sit on top of drawer frame"; "Tray glides across drawer for easy access to items stored below"; "Measures 15.0"-23.7" D x 7.1" W x 2.0" H; made with high-quality, BPA-free, recycled plastic in speckled white color"; "Creates a second level of storage to organize small items in a drawer."
- Supports: expandable range (15–23.7 in), locking-teeth mechanism, BPA-free recycled plastic, second-level/sliding mount style, "small items" framing for `item_size_class`. Confidence high (manufacturer's own structured data, read directly).

**YouCopia, DrawerFit® Sliding Drawer Sorter** — https://youcopia.com/products/drawerfit-sliding-drawer-sorter
- verbatim (same method): "Creates a second level of storage to maximize drawer space"; "Two adjustable dividers keep small items organized"; "Expandable from 15" to 23" to sit on top of drawer frame"; "Patent-pending SlideLock™ design keeps bin extended to glide across the drawer"; "Measures 15.0"-23.1" D x 5.9" W x 2.7" H; made with high-quality, BPA-free, recycled plastic."
- The page's own schema.org markup tags this product's `category` as **"Household Drawer Organizer Inserts"** verbatim — the brand's own name for the product type matches this register's scope almost exactly.
- Supports: second source for the 15–23 in range, SlideLock/locking-teeth naming, BPA-free plastic, the brand's own category name. Confidence high.

**YouCopia, DrawerFit® Sliding Drawer Bin** — https://youcopia.com/products/drawerfit-sliding-drawer-bin
- verbatim: "Bin expands from 15" to 23" to fit drawers horizontally or vertically"; "Locking teeth keep bin extended to sit on top of drawer frame"; "Measures 15.0"-23.7" D x 7.1" W x 2.7" H."
- Supports: third product on the same 15–23 in range and mechanism, confirming it's a line-wide design choice, not a one-off spec. Confidence high.
- I also pulled YouCopia's sitemap directly (`/sitemap_products_1.xml`) to see the brand's full catalog: outside the three DrawerFit products above, everything else (StoreMore, SpiceLiner, UpSpace, ShelfBin, RollOut, TeaStand, lid racks, lazy-susan turntables) is a cabinet, pantry or fridge/freezer organizer, not a drawer insert — which is exactly the `kitchen-organizers` sibling's territory, not this one. Confirms the scope boundary from the brand's own product-line split.

**madesmart, Classic Gadget Tray ("Junk Drawer Organizer® Gadget Tray")** — https://www.madesmart.com/product-page/junk-drawer-organizer-gadget-tray
- verbatim (pulled via `curl`, read the page's own `og:description` meta tag and matching JSON-LD, not a model summary): "This thoughtfully designed organizer has rounded corners, easy-to-clean compartments with the soft-grip lining, and non-slip rubber feet to keep things in place. Made from high-quality, BPA-free plastic for long-lasting organization."
- Supports: non-slip rubber feet as a real, named feature; second brand independently using "BPA-free plastic" language. Confidence high.

**madesmart, Two Piece Drawer Organizer** — https://www.madesmart.com/product-page/two-piece-drawer-organizer
- verbatim: "Two stackable trays act as a system to organize small drawers... Place one tray on top of the other to save space in your drawers, or set them side-by-side for easy access to contents."
- Supports: modular/stackable arrangement as a real, marketed configuration option (not unique to interlocking-bin sets). Confidence high.

**madesmart, Original Junk Drawer Organizer®** — https://www.madesmart.com/product-page/original-junk-drawer-organizer
- verbatim: "Use the twelve compartments to simplify the cluttered drawers in your kitchen, bathroom, office, or school. The convenient sliding, removable top tray adds an extra level of storage for items that require easy access."
- Supports: second brand, second source for the second-level sliding mount style (independent of YouCopia's mechanism); 12-compartment data point for `compartment_count`; explicit "kitchen, bathroom, office, or school" framing that supports keeping this category room-agnostic. Confidence high.

**madesmart, Expandable Drying Stone™ Drawer Organizer** — https://www.madesmart.com/product-page/expandable-drying-stone-drawer-organizer
- verbatim: "Composed of non-toxic, naturally occurring materials with antimicrobial and antibacterial properties, the Drying Stone™ eliminates germs through a rapid dehydration process upon contact."
- Supports: a real but niche mineral/antimicrobial material variant, bathroom-specific (toothbrush drying). Noted in "Trimmed detail" rather than made its own facet — one brand, one product, too narrow to generalise as a `material` value.

### Brand spec sheets (kitchen-cabinetry trade channel)

**Rev-A-Shelf, Drawer Accessories collection** — https://www.rev-a-shelf.com/collections/drawer-accessories
- fetched excerpt (WebFetch tool; the live page redirects/blocks a plain `curl`, so I could not independently confirm the exact wording — this is the one claim in the register's reasoning that rests on a fetched excerpt rather than curled text, and I have not put any of its numbers in `category.json` as a result): cutlery/utensil trays offered in "Polymer options" and "Wood constructions," plus "Customizable tray inserts with removable dividers"; a "Craftsman Collection" item described as an "Adjustable Deep Drawer Divider Insert for Base Cabinet Drawers"; stated "Dimension Range: 10" to 36" widths."
- Supports (qualitatively only, not for any number in the JSON): the existence of a second, separate market segment — inserts built to a new kitchen cabinet's nominal width and sold through cabinet/hardware dealers, not sized to fit an arbitrary existing drawer the way the retail-universal products above are. This is the basis for the `fit_segment` facet. The 10–36 in figure is plausible (matches standard US base-cabinet module widths) but is fetched-excerpt-only, so it is not asserted as a sourced range in the JSON; `fit_segment`'s values are categorical, not numeric, so no threshold is at stake.

### Specialist review

**The Spruce, "The 9 Best Drawer Organizers of 2021" by Camryn Rabideau** — https://www.thespruce.com/best-drawer-organizers-4154355 (live site blocks the fetch tool; read via the Wayback Machine snapshot at `20210803170306`, retrieved with `curl` and stripped of markup — this is the raw archived page text, not a tool summary, so I count it as verbatim)
- verbatim: "you'll want to consider the size of what you're storing and the drawer that you're storing in... always make sure to take measurements before buying."
- verbatim, Home-it bamboo cutlery organizer: "17.5" long and 2" deep. The main compartment is just under 14" wide, but it can expand to up to 17.5 inches... The organizer is made of sleek bamboo."
- verbatim, Rolodex desk organizer: "made of black metal mesh... almost 12" long, just over 15" wide and approximately 2.5" deep. There are four small compartments... two long compartments."
- verbatim, SimpleHouseware closet underwear/sock divider: "fabric organizer... Each set... comes with four bins, each of which are 4.25 inches deep and made of mold-proof fabric," with cell counts of 6, 7, 8 and 24 across the four bins, sold as separate pieces you arrange yourself.
- verbatim, iDesign + The Spruce fridge-drawer insert: "8.37 x 6.37 x 3.88 inches... The built-in divider is removable."
- verbatim, InterDesign cosmetics tray: "clear acrylic... 11.25 inches wide, almost 8 inches long and 1.25 inches deep... can expand to a width of 18 inches... cotton swabs and pads, bobby pins, nail clippers, various makeup products."
- verbatim, Real Simple Honeycomb organizer: "eight white plastic pieces that snap together to create 32 compartments... can be easily cut down to size with a pair of scissors."
- verbatim, iDesign deep-drawer insert: "this attachment is designed to maximize vertical space in your drawers. Simply attach it to the interior side of your drawer."
- verbatim, madesmart Junk Drawer Organizer with Removable Top Tray: "a two-tier product... The plastic 'Junk Drawer Organizer' is 15 inches long, 11.5 inches wide and 3 inches high. It has a removable top tray that slides back and forth."
- verbatim, madesmart Interlocking Drawer Organizer Bins: "eight separate bins... three 3 x 3 inch squares, three 9.1 x 3 inch rectangles and two 9.3 x 6.3 inch rectangles. All of these bins are 2 inches deep... you might want to keep the bins in place with a little bit of glue or tape for extra security."
- Supports: independent, cross-brand confirmation of every mechanism family (fixed, expandable, modular/interlocking, side-wall-mounted, second-level sliding); the measure-first buying rule; the material spread (bamboo, metal mesh, fabric, acrylic, plastic); the modular-bins-can-shift trade-off; a second data point for a second-level sliding product (madesmart) independent of YouCopia's own copy; compartment counts from 2 to 32 across real products. Confidence high — this is the single most load-bearing source in the register, and every number taken from it is quoted directly above.

I could not reach Wirecutter's or Good Housekeeping's drawer-organizer buying guides: Wirecutter sits on nytimes.com, which the fetch tool refuses outright, and I could not find a working archive.org snapshot URL for either in the time available (my guessed slugs for Good Housekeeping and Real Simple's current guides returned no snapshot; I did not exhaustively search the CDX index for alternate slugs because archive.org's CDX endpoint became slow/rate-limited partway through this run). The Spruce's 2021 guide, read above, stands in as the category's specialist-review source.

### Primer / brand care guidance

**Totally Bamboo, Cleaning & Care** — https://www.totallybamboo.com/pages/cleaning-and-care (curled directly, page loads server-side; read as stripped text)
- verbatim: "Care for Bamboo Drawer Organizers — To clean and care for your drawer organizer, simply hand wash with warm water and soap. Allow it to air dry before your next use. Please avoid soaking any of our drawer organizers in water or washing them in the dishwasher."
- The same page gives the identical instruction, verbatim, for the brand's bamboo cutting boards, cooking utensils and lazy susans ("We do not recommend soaking... or washing them in the dishwasher as this could damage the board/them"), which is why I treat the hand-wash rule as generic bamboo-care advice rather than something specific to organizers (see Judgements).
- Supports: the `material` facet's hand-wash-only claim for bamboo/wood, and the bamboo-vs-plastic trade-off. Confidence high (direct manufacturer care instructions for the exact product type).

**Totally Bamboo, Expandable Cutlery Tray** — https://www.totallybamboo.com/products/expandable-cutlery-tray
- verbatim (curled, read the page's `og:description` meta tag directly): "Say goodbye to cluttered kitchen drawers with our drawer organizer! Features sliding side compartments that expand it from 13" up to 22" wide."
- Supports: a second, independent brand and material (bamboo, not YouCopia's plastic) landing in the same 13–22 in expansion band as YouCopia's 15–23 in, which is why the register's `expansion_range_in` typical note treats roughly 11–23.7 in as the cross-brand band rather than trusting one brand's number alone (the 11 in low end comes from the Spruce-reviewed InterDesign product; the 23.7 in high end is YouCopia's own Tray/Bin spec, not InterDesign or Home-it, which top out at 18 in and 17.5 in respectively).

**Totally Bamboo, Small Cutlery Tray ("Flatware Drawer Organizer")** — https://www.totallybamboo.com/products/small-cutlery-tray
- verbatim: "Straighten up your silverware drawer with our flatware organizer! Includes compartments sized for standard forks, spoons and table knives"; full description (pulled from the page's JSON-LD `description` field): "4 standard-sized compartments to fit silverware and one extra-large compartment... Masterfully crafted with sturdy bamboo dividers and a solid fiberboard base."
- Dimensions read from the page's product-variant markup: approximately 14 x 10.25 in.
- Supports: a concrete fixed-size (non-expandable) product, confirming that fixed trays are sized to the items (flatware) rather than to a drawer range — the opposite design logic from the expandable products above.

**Totally Bamboo, Universal Knife Caddy** — https://www.totallybamboo.com/products/universal-knife-caddy
- verbatim: "The caddy features an innovative bristle design that allows knives of all sizes to easily slide into place and firmly store them. The bristle design is gentle enough to not dull the knives when sliding them in and out, keeping them sharp longer. A portion of the blade can be seen when placed in the caddy."
- Supports: the `blade_edge_feature` facet and the "no governing safety standard, but one real safety-adjacent design feature" judgement.

### Could not reach

WebSearch's budget was exhausted before this run started (the tool reported "200 of 200" used), so no claim in this register rests on a search-engine summary. In its place I used `lite.duckduckgo.com` via `curl` for a handful of initial lookups (the YouCopia and bamboo-care-page URLs above were first found this way), until it started returning HTTP 202 challenge pages partway through the run and stayed that way for the rest of the session; Bing's HTML results page returned unrelated cached content for the same reason. Reddit (r/organization's wiki, a natural enthusiast-community source for this category) refused the fetch tool outright at the domain level, as did nytimes.com (Wirecutter), goodhousekeeping.com, realsimple.com, thespruce.com's *live* site, apartmenttherapy.com and konmari.com's redirect target. The Container Store's site returned HTTP 307 redirects to both the fetch tool and `curl`, consistent with bot detection, so I have no Container Store spec data despite it being a leading retailer in this category. I did not find a standards body, regulator or academic source for this category because a search for one (CPSC recalls, ASTM/ANSI storage-product standards, FDA food-contact rules) turned up nothing specific to drawer organizer inserts — see the no-governing-standard judgement below, which is a negative finding, not a gap I ran out of time to fill.

## Data points used for derived metrics

- `fit_slack_in` (expansion max minus expansion min): built from the same verbatim ranges above — YouCopia's three products all span exactly 15 to ~23–23.7 in (about 8 in of slack); Totally Bamboo's bamboo tray spans 13 to 22 in (9 in of slack). I did not assert a single "typical slack" number in the JSON beyond the formula itself, since only two brands' worth of range pairs is thin evidence for a typical figure.

## Against the existing add-on schema

`zamana-expertise/data/schema-parts/supplies/household/add-ons/organizer_insert.jsonc` is currently empty (`{}`) — this register is proposing its first fields, not revising existing ones. I read `household-standard.jsonc`, `supplies-standard.jsonc` and `AGENTS.md`'s field-kind vocabulary (vertical anchor / category quality currency / hard filter / sizing / noise) before proposing anything. Nothing below is edited in `zamana-expertise`; these are proposals only.

| Facet here | Proposed kind (AGENTS.md vocabulary) | Where it should live | Reasoning |
|---|---|---|---|
| `adjustability` | Hard filter | New field in `organizer_insert.jsonc`, enum `[fixed, expandable, modular_interlocking]` | Buyers filter on this by literal value; nothing in either standard schema captures it; cheap to state from the title on every product I found. |
| `mount_style` | Hard filter | **Extend `household-standard.jsonc`'s existing `mounting_install` enum**, not a new add-on field | `mounting_install` already has a `drawer_in` value, which is clearly meant to cover this family, but it cannot currently distinguish a loose drop-in tray from a side-wall-mounted insert from a second-level sliding tray — all three code identically today. I propose adding `drawer_side_wall` and `drawer_second_level_sliding` alongside the existing `drawer_in` (which would then mean specifically the loose drop-in case), rather than duplicating a mount/placement field inside the add-on. |
| `expansion_range_in` | Hard filter, sizing-shaped | `sizing` block (per AGENTS.md rule 2 — this is exactly a "bought-by-number" dimension that differs across size variants of the same base design, the way cable length does for cables) as `sizing.fit_range: { min_in, max_in }` | All three YouCopia products and both Totally Bamboo products state an explicit min/max range on the listing; it is the one number a buyer checks against their own tape measure before buying, which is the textbook hard-filter case in AGENTS.md. |
| `compartment_count` | Category quality currency | New field in `organizer_insert.jsonc`, `compartment_count: number \| null` | This is this category's thread-count-equivalent: a dense, comparable number (2 to 32 across the products read here) that most listings state and that the pipeline could augment for the rest by counting photos. |
| `material` | **Mostly visually-derived — do not add as a new text field** | Covered by `household-standard.jsonc`'s existing `materials` enum; no new field proposed | AGENTS.md rule 1 is explicit that anything a photo answers belongs to the image pipeline, not a schema field, and bamboo/plastic/fabric/wire mesh are usually visually obvious. The one thing a photo cannot show is the "BPA-free" / food-contact-safe claim brands make in text (YouCopia and madesmart both state it); if that claim is worth capturing at all, it should be a narrow boolean (`bpa_free_claimed`) folded into `high_signal_markdown` rather than a full material facet, since it is a marketing claim, not a measured fact. |
| `item_size_class` | Not a schema field | — | This is assistant-level reasoning over `compartment_count` and stated dimensions, not something a listing states directly; adding it as its own field would be the "derivable from kept fields" noise AGENTS.md rule 5 warns against. |
| `fit_segment` | Considered, not proposed | — | Real distinction (retail-universal vs cabinet-trade custom-to-width), but I have no reliable, cheap way to augment it per listing — it has to be inferred from brand/channel metadata upstream of the PDP, which fails AGENTS.md rule 4's "would we happily commit to augmenting this" bar for a schema field. |
| `non_slip_base` | Borderline; leaning noise | — | A real, named feature on at least one brand (madesmart, verbatim), but it reads close to the "foldable booleans" AGENTS.md rule 5 flags as dead on sight: present on some listings, absent on others even when the feature exists, and not something a buyer filters hard on. I would fold a mention into `high_signal_markdown` rather than give it a dedicated field. |
| `blade_edge_feature` | Noise for this add-on | — | Real and sourced, but applies only to the cutlery-holding slice of this category, not the category generally; a general `organizer_insert` add-on field should not carry a sub-case this narrow. If kitchen cutlery trays get their own more specific treatment later, it would belong there. |

## Branches

- `adjustability` = expandable → ask `expansion_range_in` and `mount_style` next. Chain: all five expandable products I found state their own range on the listing (YouCopia x3, Totally Bamboo's expandable tray, the Spruce's quoted Home-it and InterDesign ranges), and two of the five (YouCopia's sorter and bin, madesmart's Original Junk Drawer Organizer) are simultaneously expandable *and* second-level sliding — so once a product is expandable, both the range and the mount style become the live questions. SUPPORTED.
- `adjustability` = fixed → `expansion_range_in` becomes irrelevant. Chain: Totally Bamboo's Small Cutlery Tray and the Spruce's quoted iDesign fridge-drawer insert are both described as a single fixed size with no expand language at all — a fixed tray has no range to state. SUPPORTED.
- `adjustability` = modular_interlocking → ask `non_slip_base` next; `expansion_range_in` becomes irrelevant. Chain: the Spruce's verbatim line on madesmart's and the Honeycomb set's interlocking bins — "you might want to keep the bins in place with a little bit of glue or tape for extra security" — ties modular/interlocking directly to a stay-put concern, and a set of separate small bins (3x3 in, 9.1x3 in, etc., per the Spruce) has no single min/max range to state the way one continuous tray does. SUPPORTED.
- `item_size_class` = small_loose_items → ask `mount_style` and `compartment_count` next. Chain: YouCopia's own copy frames all three DrawerFit products as being for "small items" (verbatim, "organize small items in a drawer" / "keep small items organized"), and the Spruce's InterDesign cosmetics tray (cotton swabs, bobby pins, nail clippers) and Home-it cutlery tray are both small-item, high-compartment-count products — so a "small loose items" answer is exactly where the second-level mount style and a higher compartment count both become live. SUPPORTED.
- I considered a `bulky_folded_items` branch making `compartment_count` irrelevant, on the theory that bulky items want fewer, bigger bins. I dropped it: the Spruce's own SimpleHouseware sock/bra/underwear divider set — squarely a bulky-folded-item product — has a 24-cell bin as one of its four pieces, which contradicts "fewer compartments" cleanly enough that I could not state the leg as supported. Logged here per the house rule rather than silently omitted.

## Trimmed detail

- `mount_style`: madesmart's Expandable Drying Stone™ organizer is a fourth, bathroom-specific material/mechanism combination (a mineral "Drying Stone" insert that dehydrates a wet toothbrush) layered onto the ordinary expandable-tray mechanism. One brand, one product; not generalised into a `material` value, but worth noting as evidence that brands keep inventing narrow variants on the same four or five base mechanisms rather than new ones.
- `fit_segment`: Rev-A-Shelf's stated "10 to 36 inch" width range for cabinet-width custom inserts is plausible (it matches the well-known US base-cabinet module widths) but rests on a WebFetch summary I could not independently confirm with `curl` (the live page redirects for a plain fetch), so it is not asserted as a sourced number anywhere in `category.json` — `fit_segment` itself is categorical, not numeric, so this doesn't block the facet, only the illustrative figure.
- `expansion_range_in`: the Spruce's quoted ranges (Home-it 14–17.5 in collapsed-to-expanded is actually stated as "just under 14... up to 17.5"; InterDesign 11.25–18 in) both sit comfortably inside the wider 11–24 in band the JSON states, so I did not need to widen the band further to accommodate them.

## Corrections

None yet. This is the initial authoring pass; a blind content check (a fresh reviewer re-fetching the cited sources and grading each load-bearing number) is run as a separate pass per house convention and would be logged here afterward.

## Corrections (2026-10-26)

- `expansion_range_in.range.max`: 24 → 23.7 in; no cited product reached 24, the true cross-brand ceiling is YouCopia Tray/Bin's own 23.7 in spec. Also fixed the misattribution above (line ~87) that wrongly credited the 24 in figure to InterDesign/Home-it, which top out at 18 in and 17.5 in.
- `compartment_count.range.min`: 2 → 5; no cited source states a 2-compartment product (the iDesign fridge insert's "removable divider" implying 2 cells was this register's own unstated inference). 5 is sourced verbatim from Totally Bamboo's Small Cutlery Tray (4 standard + 1 extra-large compartment); added that line to its reference's `supports` and adjusted the facet's `typical` text to match.
- `adjustability` branch, `modular_interlocking` leg: dropped `then_ask: ["non_slip_base"]`. The only evidence tying modular/interlocking bins to a stay-put feature is The Spruce's user-applied glue-or-tape fix, not a product spec; no cited modular product confirms or denies a non-slip base. The stay-put concern is already covered in `tradeoffs`, so no facet question is implied as live. `makes_irrelevant: ["expansion_range_in"]` kept as-is (unchallenged).
- `item_size_class` branch, `small_loose_items` leg: dropped `compartment_count` from `then_ask`, keeping `mount_style` only. The cited InterDesign/Home-it small-item products don't state the compartment numbers the "high-compartment-count" framing needed, and there's no `bulky_folded_items` branch to show the claim is specific to small items rather than true regardless of size.
- Relabeled `source` from `listing` to `researched` on `adjustability`, `material`, `compartment_count`, `expansion_range_in`, `mount_style`, `non_slip_base`, `blade_edge_feature`: every one of these rests only on brand D2C spec pages (youcopia.com, madesmart.com, totallybamboo.com), not a confirmed third-party retail listing (Amazon fetch attempts were blocked/garbled, same as the original authoring pass). Added a brand-page-only caveat to each `listing_field_hint`, per the house rule for exactly this situation.
- `fit_segment.backfill_cost`: `medium` → `high`, matching this file's own description of the facet as inferred from upstream brand/channel metadata rather than reliably backfillable per listing.
- Mechanism family "Cabinet-width custom" `plain` text: softened "not adjustable" to "mostly not adjustable after purchase" — Rev-A-Shelf's own cited page sells a "Trim to Fit Glossy Utensil Tray Insert" and other polymer pieces advertised as "Create a custom fit by trimming to your exact size," plus wood dividers in "multiple trimmable sizes," so at least some cabinet-width-custom products are field-trimmable (confirmed by curl, not just the original check's claim).
- Rejected: Part A's single-source flags (`non_slip_base`, `blade_edge_feature`, `fit_segment`'s `custom_to_cabinet_width`) and the safety-standard judgement were not separately "fixed" beyond the source relabeling above — the check itself graded these as honestly flagged already (self-consistent `listing_field_hint`, or a replicated tooling limit rather than new evidence), not as errors needing a different fix.