8-hole bricks are a type of wire-cut (extruded) brick featuring eight cylindrical perforations. These holes reduce the overall weight of the brick, lower material usage, and help minimize the dead load on structures. The perforations also improve the brick’s thermal insulation and allow better bonding with mortar or even reinforcement for creative or structural applications.
Specifications of 8-whole Bricks
Size (Standard)
230 mm x 100 mm x 75 mm (actual size may vary slightly based on regional standards)
Compressive Strength
Typically ≥ 150 to 250 kg/ Sq.cm (can go higher for engineering grades)
Water Absorption
Typically Less than 12%
Efflorescence
Slight to none (classified visually as per IS 3495 Part 3)
Shape and Finish
Sharp-edged, smooth or slightly textured surfaces(chamfer may be possible)
Color
Terracotta orRed, Brown, or Custom (depending on firing and clay content)
Density
~1500–1800 kg/m³
Durability
High – suitable for exposed masonry and load-bearing walls
Firing
Kiln-fired (uniformly)
How Do You Properly Clean 8-Hole Bricks ?
To keep 8-hole bricks looking clean and well-finished during construction, it’s important to follow proper cleaning techniques. After laying every few courses, gently wipe the brick surface using a sponge soaked in clean water to remove any mortar smears.
Avoid using hard water for curing, as the salt content can lead to white deposits and surface staining. If any dirt or efflorescence remains after basic cleaning, use a mild acid wash and scrub the area gently with a coir or fiber brush to restore the brick’s natural appearance without causing damage.
Why Are There Holes in 8-Hole Bricks?
The holes in 8-hole bricks are designed to reduce the overall weight of each brick, which in turn helps to minimize the dead load on a structure. These perforations also offer practical and creative benefits—they can be used for inserting structural steel or other elements, making them ideal for both functional and decorative architectural designs.
Do the holes affect the strength of the brick?
Not necessarily. While they are lighter, 10-hole bricks are still structurally sound and suitable for non-load-bearing garden walls, landscape edging, and creative installations.
