About us
Inside 2,000 m² of woodworking
We are a manufacturing team, not a trading desk. The people who quote your order are the same people who walk the floor when it is produced.
Chengyang, Qingdao · Shandong, China
Our story
A workshop that grew around other people's drawings
SD Strong began as a small woodworking workshop taking on outside production work. Customers did not come with a catalogue in hand — they came with a drawing, a photo or a sample and asked whether it could be made.
Nineteen years later that is still how most orders start. The facility has grown to more than 2,000 m² of factory and warehouse, with hundreds of staff, over 40 machines and twelve production lines.
What has not changed is the loop: confirm the drawing, make a sample, agree the finish and packing, then run the batch. Every step happens in the same place, which is why we can tell you early when a detail will not work.

How we got here
Four stages, one direction
We describe growth by capability rather than by year, because what matters to a buyer is what the floor can do now.
01
The start
A woodworking workshop begins taking on outside production work.
02
OEM and ODM
Customers start sending drawings and samples instead of buying from a catalogue.
03
Scale
The facility grows past 2,000 m², with 12 lines and more than 40 machines.
04
Today
Six product categories, hundreds of staff, output in the hundreds of thousands per month.
How we work
Four words on the wall
They came from the factory floor rather than a brand workshop, and they still describe how orders are handled.
Innovation
We work out the part of the drawing that is difficult to make, instead of quoting it away.
Pragmatic
Quotes, samples and tooling move at the pace of your buying calendar.
Integrity
We tell you what the factory can and cannot do before the order is placed.
Win-win
Programmes are costed to repeat year after year, not to close a single order.
Factory and team
The places behind the order
Real views from the site — no stock photography, no borrowed showroom.

Factory gate

Office and sampling desk

QC and packing

Equipment floor
Certificates and documents
Documents and who they were issued to
Every file below is labelled with its issuing body, the company it was issued to and its validity window. Partner documents are kept for reference and are not presented as current SD Strong certification.
Files marked third-party, or whose validity has ended, are kept for reference only and are not current company certification. Ask the sales contact for the latest copies relevant to your order.
- Visit by appointment
- Copy check with sales
- Live walkthrough
Next step
Come and look at the floor
Book a visit, ask for a live walkthrough, or send a drawing and let the sample answer the rest.
