Shop drawings turn
intent into
numbers

An architectural drawing says what a room should look like. A shop drawing says how one part is made, out of what, to what tolerance, and in what order.

Run in 304 or 316L in our own factory in Foshan — cutting, forming, welding and finishing are all done in-house.

Days
D1–5
Who
7–8 detailers
You receive
Buildable drawings
Review rounds
2 included
01

What a shop drawing actually is

An architectural drawing says what a room should look like. A shop drawing says how one part of it is made, out of what, to what tolerance, and in what order.

Most delays on a custom metal job do not come from the workshop. They come from the gap between a design drawing that shows intent and a workshop that needs numbers. Closing that gap is this step.

We rebuild your intent as a set of drawings with four things on every sheet: the material and thickness, the joint detail at 1:5, the tolerance we will hold, and the part number it will carry through the factory.

What we need from you

  • The architectural drawing or 3D model, at whatever stage it exists
  • The finish reference — a physical sample is worth more than a name
  • Which faces are visible after installation, and from what distance
  • Any interface with other trades: stone, joinery, glazing, lift maker

What you get back

A drawing set per elevation, with 1:5 details at every place where two parts meet. Plus a written list of the assumptions we made, because an assumption you can see is a decision you can correct.

02

What is on every sheet

FieldWhat it saysWhy it is there
Material and thickness304 · 1.5 mmA 1.2 mm and a 1.5 mm panel look identical in a render and behave differently in a fold.
Joint detail1:5 at every junctionThe joint is the only place a job fails visually. It gets its own drawing.
Tolerance±1 mm pattern / 1.2 mm per m flatA tolerance you can read is a tolerance you can reject a part against.
Visible faceMarked on each viewThe finished face is protected, packed outward, and never used as a work surface.
Part numberZone · elevation · sequenceThe same number follows the part through cutting, welding, packing and the crate.
Install sequenceNumbered per elevationDecided here, not by the crew on site.
03

What goes wrong without this step

Every junction is drawn at 1:5

The detail exists on paper before it exists in metal, so it can be argued about cheaply.

If skippedTwo parts are made to meet and do not; the fix is invented on site by whoever is there, and nobody owns the result.

Assumptions are written down

The drawing set carries a list of what we assumed, so a wrong assumption is caught in a day.

If skippedAn assumption stays invisible until the crates open, which is the most expensive moment to find it.

Tolerances are explicit

Each sheet states what we will hold, so a part can be accepted or rejected against a number.

If skippedEveryone has a different idea of 'flat', and the argument happens after the finish is applied.

04

The drawing office

Seven to eight detailers working on job drawings at any time, plus four on intake.

A CAD elevation of a feature unit, drawn before cutting
01A CAD elevation of a feature unit, drawn before cutting
02 · to be shotA marked-up drawing with real red pen on it
03 · to be shot1:5 node detail, printed and pinned
04 · to be shotApproved drawing set, stamped and dated

Ask us for the document
from any step.
Any step.

Every step below ends with a record. Ask for a specimen of it before you place an order — the answer tells you more than any brochure.