Building Products

bti is known for its strength and consistency in the real estate sector. We are now moving towards enhancement of the quality of building materials available in the market. Starting with hollow blocks as our first venture, we hope to expand our range of production to other materials too. The hollow blocks are made with the end users in mind. As we feel the need to produce and use the best possible hollow blocks in our own business, we also would like to introduce you to our hollow block production plant. Be sure to expect great customer service, timely delivery and superior quality production from us as usual!

Being a part of the changing economy of our country for so many years, bti, remaining true to its name, building technology and ideas ltd., has always strived to do something new and different.
Business activities and workshops as well as research to benefit and add value for our patrons has been always a part of the larger business strategy. As such, sponsoring earthquake research to provide better engineering solutions, implementing solar energy, creating homes for the mid-income level groups along with the upper strata, working at integrating greenery to create an eco-balance among other things as well as introducing a well thought out company culture to create professional standards have been the agenda over the years. Hence it goes without saying that the production of building materials would be the next step to growth and success.
bti building products is the latest addition to our innovative endeavors to contribute to the construction field of the country. bti building products aspires to provide you with innovative, cost effective, quality and eco-friendly building products that will foster development of the country and the industry. On its inception, we bring to you hollow block- a one of a kind building product that will change the conventional way of construction as well as paving tiles that can be custom-made as per requirement of our customers.

The Product

The exciting new innovation of the HOLLOW BLOCK

Hollow block is a special kind of machine-made hollow block with a locking mechanism in its structure which helps form linkage between blocks. It is an innovation in Bangladesh building product sector, characterized by its cost effectiveness, strength and eco-friendliness. Its amazing resilience to humidity as well as sound proofing capacity makes it a great product to replace the outdated brick and mortar construction in our country. Being cost effective, it is the ideal way of construction in developing countries.
It also has the advantage of being available throughout the year unlike the bricks in our country, which are scarce during rainy season and a problem to use due to the prevalent humid weather as well as the salinity retention. The hollow block having a plethora of advantages is the future of construction products, now easily available from bti building products.

How does it differ from normal bricks?

Normal red bricks are just a rectangular piece of block made of compressed clay.
The clay brick is affected by the mineral content and chemical nature of the raw materials, the temperature at which the brick is burnt, as well as the environment in the kiln.

The hollow block is machine made and consistent in its finish and unaffected by weather conditions unlike the red bricks in our country.
The hollow block uses technology which fits two bricks in a locking shape; it is like two pieces of a jigsaw puzzle as a result of which they are highly uniform in shape. It also decreases the use of mortar due to its mechanism as well as the construction cost and time and labor hours.

Product Features

Size Type Weight
390mm X 190mm X 110mm (15.5 X 7.5 X 4.5 inch) Hollow (Full) 12 KG
390mmX190mmX100mm (15.5 X 7.5 X 4 inch) Hollow (Full) 11.50 KG
390mmX190mmX90mm (15.5 X 7.5 X 3.5 inch) Hollow (Full) 9.38 KG
390mmX190mmX100 mm (15.5 X 7.5 X 4 inch) Solid (Full) 14.50 KG
390mmX190mmX70mm ( 15.5 X 7.5 X 2.75 inch) Solid (Full) 10.00 KG


The hollow block has a wide range of usage in construction, such as:

  • Commercial spaces & residential apartments
  • Internal partition walls
  • Architectural decoration purpose
  • In roof for heat protection concept
  • For external walls

Advantages of hollow block

Cost effective

With hollow block system, one block replaces 5 traditional bricks and the price of 5 traditional bricks is greater than one  block. It is easy to do the math. Since the blocks are sideways, you also save on the sideways brick laying mortar required in conventional brickwork.
Due to the lighter weight of the blocks the size of the structural members of both the foundation and superstructure is reduced which results in significant cost saving in the structural design of the building.

Faster construction
The blocks allow an efficient construction process since there is no need for application of mortar in sideways brick layering. This results in faster construction thereby also saving delayed project costs.

Since durability is of paramount consideration when it comes to building materials, the hollow blocks prove to be the ideal product. They are able to withstand an extremely high level of loading.

Added advantages include no efflorescence or water absorption which prevents dampness of the wall making it more durable. It is also fire, thermal and sound resistant.

Hollow blocks are very much environment friendly since these are machine made concrete blocks unlike the traditional mud baking way which releases harmful fumes.

Thermal Insulation for Comfortable interiors
A structure made of hollow blocks gives you a comfortable interior since it is a natural heat absorber, keeping your room cool in summer and warm in winter.

Greater earthquake resistance

Walls made of hollow blocks offer better resistance to earthquake horizontal thrust due to the mechanism.

Another reason for its superior earthquake resistance is that it is extremely light weight which reduces building load significantly. This provides a stable foundation and makes it better earthquake resistant.

Other Products

Pavement Tiles 

Available size: 250mmx 250mm x 58mm- can also be custom-made

• Parking Lot
• Sidewalk
• Basement
• Walkway
• Industrial Yard


Homogenous shape

Highly durable and can withstand high load

Easy installation and maintenance

Increases aesthetics


The factory is situated in Joypura, Dhamrai. The whole manufacturing process is done in-house with state of the art, fully automated, imported machines and full quality control measures to ensure the product is of the highest quality. Our focus presently is to make high class, good quality hollow blocks and pavement tiles of various sizes as well as cater for custom-size production. At bti BUILDING PRODUCTS, we are constantly researching the different needs and requirements of the construction & real estate sector of Bangladesh. In due time, we will be expanding our resources to introduce more products as well as to start exporting building products.

Our present focus is on production and promotion of:

  • Hollow Blocks
  • Pavement Tiles

Drop us a line or call us!

Email: info@btibd.org

Phone: +8801708151877, +880 01713072940

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