From Prototype to Mass Production: The OEM Timeline

OEM projects rarely fail at manufacturing. They fail in the gap between 'approved sample' and 'first bulk order'. This is the timeline we run at YourTent, what each stage produces, and where projects lose weeks.

Stage 0 — Brief and feasibility (week 0)

You send drawings, a reference product, or a target spec: vehicle mix, sleeper count, weight budget, retail price. We answer with feasibility, an honest first cost estimate, and what is possible within your MOQ. If the brief cannot hit your price, we say so here — not after sampling.

Stage 1 — Engineering and patterns (weeks 1–2)

• Structure design and 3D layout of panels, poles and hardware.
• Pattern making for cutting.
• Material and trims list locked into a specification sheet.

The specification sheet is the contract for everything after it. Every dimension, material, color and component — written down and versioned.

Stage 2 — Prototype (7–15 days per round)

The first physical unit. Expect it to be wrong somewhere: opening force, packed volume, a seam that should have been taped. This is normal — the prototype exists to find these. Most projects need two rounds; complex structures three.

• Round 1: function and fit. Round 2: details, branding, packaging.
• Each round is 7–15 days plus freight if you need the sample in hand.

Stage 3 — Golden sample (the point most brands skip)

The golden sample is the physically approved, signed-off unit that mass production is measured against. Not photos — the actual tent, in your hands. When a pre-shipment inspection finds a discrepancy, the golden sample decides who is right. Skipping this step is the single most expensive shortcut in OEM.

Stage 4 — Pilot run (optional, recommended for custom structures)

A small production run (typically 10–30 units) that proves the patterns work at line speed, not just at the sample table. Issues that never appear in a prototype — cutting tolerance stack-up, operator variability — show up here, while they are still cheap to fix.

Stage 5 — Mass production (15–30 days)

After deposit and materials are locked, bulk runs 15–30 days depending on quantity and model mix. During production the order passes the four QC gates — incoming material, in-process, final and pre-shipment inspection — with records tied to the batch number. Read how we control rooftop tent quality for what each gate checks.

Stage 6 — Shipment

• Carton weight, shipping marks and packing list confirmed against your requirements.
• QC photos archived; test reports attached if scoped.
• Sea, air and express freight all supported; third-party inspection welcome before loading.

Where projects lose weeks (and how to avoid it)

• Slow feedback on samples. Every 'we'll look at it next week' adds a week. Book review time in advance.
• Changing the spec after the golden sample. Changes restart stage 2 for the affected parts.
• Undefined compliance requirements. Tell us the target market's standards at stage 0, not at shipment.
• Payment delays. Material purchasing starts at deposit — the whole line waits on it.

FAQ

How many prototypes does a rooftop tent need before mass production?

Typically two to three: an engineering sample for structure, a pre-production sample with final materials, and a golden sample that locks the specification.

What changes can still be made after the golden sample?

Only cosmetic details such as labels or packaging. Structural or material changes after golden-sample approval restart the testing cycle.

How long from prototype approval to the first container?

For an existing platform, 30-45 days. For a new custom model, 15-30 days of production after testing, plus tooling time.