Hollow Concrete Blocks: 4, 6 and 8 Inch Price per Block

Hollow block sizes, weights and price

Check the length before comparing prices: some '6 inch' blocks on the market are 300 mm long, not 400 mm, so you need a third more of them.

Next question: How many blocks for my wall? About 108 per 100 sq ft, whatever the thickness; the working is next. More

How many hollow blocks do you need? Typical estimates

Typical estimates: ; openings, wastage and your mason's joints change the count.

Next question: How many blocks come on one lorry? About 550 six-inch blocks on a 6-wheeler and 1,100 on a 10-wheeler (typical, by weight). More

Hollow vs solid blocks

Next question: Which thickness for which wall? 4 inch for partitions, 6 inch for most outer infill walls, 8 inch where the designer wants a thicker wall. More

What a hollow concrete block is

A hollow block is a machine-pressed concrete masonry unit with two or three through-cavities, made from cement, stone chips, crusher dust and sand. Chennai names the size by thickness: 4, 6 or 8 inch on a 16 x 8 inch face.

IS 2185 (Part 1) is the standard for hollow and solid concrete blocks; it sets nominal sizes, tolerances and strength grades. Block makers use the same 6 mm chips and crusher dust we sell from our crusher.

Next question: Hollow or solid for my wall? See the comparison table above. More

Which thickness for which wall

• 4 inch: internal partitions, toilet and shaft walls (typical).
• 6 inch: the usual infill for outer walls of RCC-framed houses (typical).
• 8 inch: outer walls where the designer wants a thicker wall, and tall compound walls.
• Below plinth or for load-bearing walls, use solid blocks or what the engineer specifies.

Next question: How do I check the blocks on delivery? Count, measure, scratch and look for cracks: five steps below. More

Checks when the blocks arrive

1. Count against the invoice: count the blocks in one layer, multiply by the layers and compare before unloading.
2. Measure five blocks at random: length, height and thickness should match the size ordered within a few millimetres.
3. Scratch a face with a key: a well-cured block shows a light line; a face that turns to powder means too little cement or curing.
4. Reject blocks with a crack through a web or a broken face shell.
5. Ask how many days the batch was cured; green blocks shrink in the wall and crack the plaster.

Next question: What if some blocks are broken? Set them aside, photograph them with the invoice and tell us before the lorry leaves. More

Strength grade and test report

IS 2185 (Part 1) grades blocks by minimum average compressive strength at 28 days, in N/mm². If your engineer has named a grade, ask for the factory's test result for the batch with the quote.

Next question: Does strength change the price? It can; the price rows here are for standard blocks, and a specified grade is quoted on request. More

Storing blocks on site

• Unload by hand; tipping blocks off a lorry breaks face shells.
• Stack on level ground, no higher than about 1.5 m, close to where the mason works.
• Unlike clay bricks, do not soak concrete blocks before laying; a soaked block shrinks as it dries and cracks the plaster.
• Cover the stack in the monsoon and let rain-wet blocks dry before use.

Next question: Can blocks stay outside in the rain? For a short while, yes; let them dry before laying. More

Mistakes to avoid with hollow blocks

• Using hollow blocks below plinth or for load-bearing walls without the engineer's approval.
• Soaking blocks like bricks before laying.
• Cutting blocks with a hammer instead of a cutter; broken halves waste more than they save.
• Comparing prices without checking the length (300 mm or 400 mm).

Next question: Would solid blocks suit my wall better? For load-bearing and below-plinth work, yes. More

Hollow Concrete Blocks: delivered price by area

Delivered price per block = yard price + freight on the block's weight from the nearest yard or the Gummidipoondi SIPCOT factories, assuming a full lorry; before GST.

Next question: how much do I need? Quantity calculator · Delivered-cost estimator

How to order hollow blocks

1. Send the size, the count (or wall area) and your site location: quote form, call or WhatsApp.
2. We confirm the price per block, the nearest yard and the delivered price per lorry load.
3. Count and check the blocks before the lorry leaves; unload by hand.