How many samples should I review in a Case Showroom?

Eight to twelve. Fewer hides the size span; more scatters attention and hand-feel calls get coarse.

What color difference is acceptable?

Delta E of 3 or less. Under 1.5 is a visual match; 2 to 3 works if the contract names the light.

How do I judge wall thickness without a caliper?

Tap and press. A dull note with quick recovery suggests thickness; a high hollow note with a soft press suggests thin wall.

Can I choose color under showroom lighting?

No. Spots at 3000 K saturate orange and brown dark grey, so move to a window before deciding.

How long should the visit take?

About one hundred minutes: forty on samples, twenty on color, twenty-five on feel, fifteen on parameters.

Case Showroom Visit: Sample Lines, Color Cards and Hand Feel

Quick answer: A Case Showroom is worth the trip for three things: how far the sample line spans in series and sizes, how a color card matches a real moulding in different light, and how wall, hinge and latch feel in the hand. A typical floor holds nine series and forty-two stock colors; one hundred minutes reads all three.

Reading the Sample Line in a Case Showroom
Color Cards Against Real Parts
Hand Feel: Wall Thickness, Hinges, Latches
Eight Parameters to Settle on Site
A Route and a Hundred-Minute Budget
FAQ

1. Reading the Sample Line in a Case Showroom

A sample line is the skeleton of a Case Showroom; its arrangement says more than unit count. One series per bay with cavity lengths stepping by 50 mm exposes tooling: adjacent sizes share one mould with a changed insert.

Count span, not units. A common floor holds nine series from 210 to 1180 mm; a narrow span turns every odd size into a new tool.

Segment	Cavity length	How to check	What it tells you
Handheld	210 to 350 mm	Lift with one hand	Wall 2.8 to 3.2 mm
Mid	400 to 620 mm	Open lid, read rim step	Two latches, two hinges
Large	700 to 900 mm	Close with both hands	Wall above 3.5 mm
Long	950 to 1180 mm	Look for side ribs	Heavy empty weight

2. Color Cards Against Real Parts

A color card is a small plaque; a case is a large moulding, and showroom light hides the difference. Spots in a Case Showroom usually run 3000 K at about 500 lux, which saturates orange and browns dark grey, so a match approved there shifts outdoors.

Judge in three positions: the spot for a first impression, window daylight for the decision, then 4000 K and 6500 K torches. A plaque that shifts between those temperatures is metameric, and its pigment blend drifts on a new batch.

Express the result as Delta E. Below 1.5 the eye cannot separate the two; above 3 they are different colors.

3. Hand Feel: Wall Thickness, Hinges, Latches

Hand feel is three measurable differences. Tap a side wall: 3.5 mm answers short and dull, 2.8 mm rings higher. A hollow note usually means sparse ribs, which no lighting reveals.

Hinges need three checks: clean swing, a lid that holds near 90 degrees, and no axial play in the pin. Twenty cycles should feel identical; a lid that stays near 100 degrees has real damping.

Latches are about travel: one firm click over roughly 3 mm. Two hands to close means latch and keeper are too tight.

Check	Method	Acceptable	Warning
Wall	Caliper, rim and side	3.5 mm, within 0.2 mm	Rim thinner
Stiffness	Thumb press	Quick return	Soft recovery
Hinge	Twenty cycles	Consistent, no axial play	Loosens, metallic rasp
Latch	One-hand close	Single click, 3 mm travel	Two hands needed

4. Eight Parameters to Settle on Site

The easiest thing to forget in a Case Showroom is to ask for numbers; samples can look right and leave the quotation without one.

Ask for resin grade and wall tolerance with a measuring position attached. Ask for a color code plus Delta E limit, not a name. Ask for latch cycles and the test behind them, hinge torque and angle, seal rating, and whether the tool is shared.

5. A Route and a Hundred-Minute Budget

Walk outside in, whole to detail: main wall, size run, color bench, handling bench, then questions. Questions first and the model numbers blur.

Spend the hundred minutes as twenty-five on the wall, fifteen on the size run, twenty on color, twenty-five on hand feel, fifteen on questions. Bring a caliper and a 4000 K torch into the Case Showroom.

Stop	Time	Action	Record
Main wall	25 min	Count series, note steps	Series and size list
Size run	15 min	Open lids, read ribs	Height and step photos
Color bench	20 min	Compare three lights	Code and Delta E
Handling bench	25 min	Tap, cycle, latch	Feel notes
Questions	15 min	Confirm parameters	Sheet, lead time

Conclusion

A Case Showroom earns its place only when three findings reach paper: the size span of the sample line, a Delta E figure under a named light, and measured wall and latch travel. Write those numbers down; that is how a Case Showroom trip pays for itself.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.