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Semark Containers
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Welcome to Semark Containers

Build beyond limits with container innovation

New, used and converted shipping containers for storage, offices, homes, shops and cold rooms – designed, fabricated and delivered across Tanzania.

Sizes in stock
20 & 40 ft
Sizes in stock
Delivery
Countrywide
Delivery
Fabrication
Custom
Fabrication

Trusted by businesses, schools and families across Tanzania

Converted shipping container by Semark Containers
Shop

Our containers

Prices in Tanzanian shillings. Add to cart to order, or ask us for a quote.

Container shop with serving hatch built by Semark
Fabrication

We turn steel boxes into working spaces

From a simple door and window to a fully furnished two-storey office, our fabrication team builds it in our Dar es Salaam yard.

Custom layouts

Doors, windows, partitions and stairs where you need them.

Insulation & AC

Cool, comfortable rooms for the Tanzanian climate.

Electrical & plumbing

Lights, sockets, water and toilets installed and tested.

Explore fabrication
Why Semark

Built strong, delivered right

We are a Tanzanian team that designs, builds and delivers – one company from first call to final placement.

Inspected containers

Every container is checked for rust, leaks and doors before sale.

Clear prices

Prices are shown online and quotes are written and detailed.

Countrywide delivery

Crane-truck delivery to any region of Tanzania.

Real support

Talk to us by phone or WhatsApp before and after you buy.

Latest designs

View all designs
20ft container shop with serving hatch
Shop20 ftDar es Salaam2024

Container shop with serving hatch

A 20 ft container opened on one side with a lift-up awning and timber counter – ideal for a café, kiosk or mobile money shop.

Container office block with barred windows
Office40 ftDar es Salaam2024

Container office block

Long container office with several rooms, burglar-proof windows and separate doors.

20ft site office container
Site office20 ftCoast Region2024

Site office with window and door

40ft container house
Home40 ftDar es Salaam2024

Container house

How it works

From idea to your site

  1. 01

    Tell us what you need

    Choose a container online or describe your project: size, use, location and budget.

  2. 02

    Quote & design

    We send a clear quotation and, for conversions, a layout you can approve.

  3. 03

    Build in our yard

    Our team cuts, welds, insulates, wires and paints your container in Dar es Salaam.

  4. 04

    Delivery & set-up

    We deliver by crane truck anywhere in Tanzania and place it on your site.

Questions

Before you buy

All questions

Yes. We deliver to every region of Tanzania using crane trucks. Delivery is quoted by distance and site access.

A 20 ft container is about 6 m long and 2.4 m wide (about 14 m²). A 40 ft container is about 12 m long (about 28 m²). Both are about 2.6 m high; a 40 ft High Cube is about 2.9 m high.

Yes. We can add doors, windows, insulation, electrical, plumbing, partitions, paint and branding in our fabrication yard before delivery.

After we confirm your order we send an invoice. Payment is by bank transfer or mobile money. Custom work usually needs a deposit to start.

A simple office takes about 2 to 3 weeks. Larger or multi-container projects are scheduled when we send the quotation.

Yes, you are welcome to visit our yard in Kinondoni, Dar es Salaam during working hours. Call us first so a salesperson is ready for you.

Guides & news

All articles →
Container site office
Ideas · 08 Nov 2026

5 smart uses for a container office

Container offices are fast to build, easy to move and cost less than brick. Here are five ways our customers use them.

Ready when you are

Need a container or a custom build?

Tell us what you need and get a written quotation within one working day.

Request a quote