Stainless Steel Prototype Process: From Sample to Approval

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A stainless steel prototype is built in stages: you send photos and a sketch, we measure on site, prepare a drawing and written specification, produce a sample in the factory, and only after your approval do we run the full batch and install it. Each step confirms dimensions, finish and fit before any larger production begins. This keeps changes cheap and the final part accurate.

Step 1: Sharing Your Concept

Every prototype starts with an inquiry. Send photos of the location, any existing parts you want to replace, and a rough sketch with the function you need. Note the environment, such as an outdoor balcony, a wet area or a coastal site, because it affects the grade of stainless steel and the finish we recommend.

Photos from two or three angles
Rough dimensions, even if approximate
Intended use and load expectations

A clear brief helps us respond with a realistic plan rather than guesses.

Step 2: On-Site Measurement

Where possible, we measure the installation point ourselves. Walls are rarely perfectly square, and a prototype built from drawings alone can miss by enough to cause trouble at fitting. We record openings, fixing points, surface material and any obstacles such as pipes or electrical boxes.

Measurements are taken at more than one point so we can spot variation and plan adjustments accordingly.

Step 3: Drawing and Written Specification

Based on the measurements, we prepare a drawing and a written specification. The specification lists the material, thickness and profile, the joining method, the surface finish and the fixing method. You review these documents before anything is cut.

Where a design depends on a safety requirement, such as a railing height or spacing, we confirm the details with the responsible engineer. We refer to the Israeli railing standard SI 1142 generally, and exact values are checked during engineering review rather than assumed.

Step 4: Factory Sample Production

The prototype is cut, formed and welded in our Tel Aviv workshop on Rival Street. Stainless steel needs careful handling: we control heat during welding to limit discoloration and distortion, and we polish weld areas so the joint blends with the surface.

Cutting and forming to the approved drawing
Welding with heat control
Grinding and finishing of visible joints

The sample is checked against the drawing before it leaves the factory.

Step 5: Review and Approval

You inspect the sample in person or through photos and measurements. Check fit, finish colour, edge quality and how it sits against the surrounding material. If something needs adjustment, we note the change in the specification and produce a revised sample.

Only after written approval do we move to full production. This step is where most costly mistakes are prevented, because changing one sample is far simpler than reworking a whole batch.

Step 6: Production and Installation

Once approved, the parts are produced in full, finished as specified and delivered for installation. Stainless steel is often installed with mechanical fixings into solid substrates, and the fixing method is confirmed during the specification stage.

After installation, we check alignment, fixings and finish together on site, so the prototype approval carries straight through to the completed work.

Frequently asked questions

How long does a stainless steel prototype take?

Timing depends on the complexity of the part and how quickly approvals come back. The on-site measurement and drawing stages are usually the longest, so a prompt response to each document keeps the process moving.

Do I have to pay for the prototype before approval?

Commercial terms are agreed individually when you make an inquiry, and we will explain them clearly before any work starts. Please contact us for details that fit your project.

Can the sample be changed after I see it?

Yes. Changes to dimensions, profile or finish are noted in a revised specification and a new sample is made if needed. This is exactly why the sample stage exists.

Is stainless steel suitable for outdoor prototypes?

It can be, especially in humid or coastal conditions, provided the right grade and finish are chosen. We recommend the grade during the specification stage based on where the part will be installed.

Common mistakes to avoid

A common mistake is skipping the sample and going straight to full production, which can lock in errors in fit or finish. Another is sending only approximate dimensions, which leads to parts that do not match the real opening.

Our recommendation

Approve the sample in the actual light and location where the part will be used, not only on a desk. Put any changes in writing so the final production matches exactly what you signed off.

Summary

A stainless steel prototype moves through inquiry, on-site measurement, drawing, factory sample, approval and installation. Each stage confirms the design before full production begins.

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