20mm Aggregate Today Price in Chennai: Per CFT, Ton and Bulk Load Rates
₹48 per CFT · ₹1,173 per ton · Why the Unit Changes the Total · Slab Quantity Worked Through · 8 FAQs
Order: +91 9384819295 / +91 9384819297 | sales@buildiyo.store
Direct Answer
DIRECT ANSWER
The 20mm aggregate price in Chennai supplied by Buildiyo Store is ₹48 per CFT and ₹1,173 per ton. These are our listed rates, not independently verified live market prices, and your final cost will depend on supplier, order quantity, transport, delivery location and bulk-load requirements. The two rates are quoted separately rather than converted from one another, so put your quantity on one basis before you compare — the section below shows how.
Need 20mm aggregate for your Chennai site?
Quantity-based quotation · Unit stated · Transport as its own line
What Is 20mm Aggregate?
📖 DEFINITION
20mm aggregate — also called 20mm blue metal or jelly — is crushed hard granite stone screened to a nominal 20 millimetre size, used as the coarse aggregate in concrete. It gives the mix its bulk, its compressive strength and its load-bearing capacity, with the cement paste and fine aggregate binding around it. Our listed material is specified as hard granite, bluish grey, screened free of dust and clay, with a bulk density of 1.6 to 1.7 MT per cubic metre and water absorption under 2 per cent.
Where 20mm Aggregate Is Used
20mm is the general-purpose structural size, which is why it accounts for most of the coarse aggregate on a typical Chennai house or commercial build.
Structural concrete and RCC work
The standard coarse aggregate for general nominal-mix and design-mix concrete.
Roof and floor slabs
Sized to pass between reinforcement bars and around the slab depth without bridging.
Beams and columns
Suitable where bar spacing allows; congested sections sometimes call for a smaller size instead.
Foundations and footings
In plain and reinforced concrete bases.
Flooring, hardstanding and road bed
Where a compactable, well-graded stone is needed.
Size selection is an engineering decision rather than a price decision. Follow the approved mix design, the structural drawings and the spacing of your reinforcement — and where a section is heavily congested, ask your engineer before substituting a size.
20mm Aggregate Rate in Chennai: Per CFT and Per Ton
[INSERT DATE BEFORE PUBLISHING] — rates below are the supplied Buildiyo Store listing rates and are subject to change.
| Unit of sale | Supplied rate | What the unit measures | Best suited to |
|---|---|---|---|
| Per CFT (cubic feet) | ₹48 | Volume — the space the stone occupies | Quantities taken off drawings or a BOQ, which are calculated as volume |
| Per ton (metric tonne) | ₹1,173 | Mass — what the load actually weighs | Weighbridge-based supply and vehicle load limits |
⚠ PLEASE CONFIRM BEFORE ORDERING
Supplied rates, exclusive of any applicable taxes, transport and delivery charges unless confirmed otherwise in your quotation. They are our listing rates and are not presented as independently verified live market prices.
Why the Unit on Your Quotation Changes the Total
CFT measures volume and a ton measures weight, so converting between them depends on how much a cubic foot of this particular stone weighs. That is what bulk density tells you, and it is why the two figures are not interchangeable.
CONVERT BEFORE YOU COMPARE
At the bulk density published for this material — 1.6 to 1.7 MT per cubic metre — one ton of 20mm aggregate occupies roughly 20.8 to 22.1 CFT. Put the supplied ₹1,173 per ton over that volume and it works out to approximately ₹53 to ₹56 per CFT, against the supplied ₹48 per CFT quoted directly. The two rates are quoted independently rather than derived from one another, so neither is a conversion of the other. The practical takeaway: BOQ and drawing take-offs produce volume, so for volume-based quantities the per-CFT rate is the directly comparable one. Ask any supplier which unit their quotation is based on, and convert every quotation to that same unit before you decide. A calculation of this kind is illustrative — actual density varies with source and moisture, so confirm the basis in writing.
What Affects Your Delivered Cost
Order quantity and bulk loads
Material rates are quoted per unit, but vehicles are hired per trip. A part-load carries the same trip cost as a fuller one, so the delivered cost per CFT generally falls as the load approaches the vehicle’s capacity. Where your quantity sits relative to a full load is usually worth a conversation before you place the order.
Transportation and delivery location
Distance from the loading point, site access, permitted vehicle size on your road, and unloading arrangements all feed into transport cost. A site a tipper cannot reach may need a smaller vehicle and more trips. Confirm transport as a separate line rather than assuming it sits inside the material rate.
Material quality and grading
Screening, dust and fines content, flakiness and the cleanliness of the stone all affect how the material performs in the mix and how much usable aggregate you actually receive. Washed, well-graded material and poorly screened material are not the same product, and comparing their rates alone tells you very little.
Taxes and other charges
Applicable taxes, any loading or unloading charges and any waiting time should be confirmed in your quotation. We have not listed figures for these here, because they depend on the order and the site.
Part load or full load? Worth asking first
A fuller load spreads the trip cost over more material
Costing a slab pour this month?
Aggregate, cement, sand and steel quoted together
How to Estimate and Order: Step by Step
Work out your concrete volume
Multiply the area by the thickness in consistent units. A 1,000 sq ft slab at 5 inches thick is 1,000 × 5⁄12 = approximately 417 CFT of finished concrete.
Convert to dry volume
Dry materials occupy more space than the finished concrete, and a factor of about 1.54 is commonly applied. 417 × 1.54 ≈ 642 CFT of dry material.
Take the coarse aggregate share
For a nominal 1:1.5:3 mix, aggregate is 3 parts of 5.5, so 642 × 3⁄5.5 ≈ 350 CFT of 20mm aggregate. Use the proportions in your approved mix design, not a generic ratio, and have an engineer confirm them.
Price the quantity
At the supplied ₹48 per CFT, 350 CFT works out to approximately ₹16,800 for the material. This is an illustrative calculation from the supplied rate, not a quotation.
Add a wastage allowance
Handling, spillage and over-ordering at the mixer all consume material. Agree an allowance with your site engineer rather than ordering the bare calculated figure.
Request a written quotation
Ask for the unit, the rate, the quantity, transport, applicable taxes and the delivery window, each as its own line.
Confirm delivery and access
State your road width, the largest vehicle that can reach the site, where the material will be tipped and who unloads it, before the vehicle is dispatched.
Check the material on arrival
Look at size consistency, dust and fines, flaky or elongated pieces, and any clay or organic matter. Raise anything doubtful before the load is tipped, not after.
Purchasing Tips and Common Mistakes
WORTH DOING
Get every quotation on the same unit before comparing. Order against a measured quantity rather than a guess. Agree transport as a separate, stated line. Ask what grading and screening the material has had. Time deliveries to your pour schedule so stone is not sitting on site collecting dust and traffic damage.
WHAT GOES WRONG MOST OFTEN
Comparing a per-CFT rate against a per-ton rate as though they were the same number. Treating the material rate as the delivered cost. Ordering a part load without asking what a fuller one would cost per unit. Choosing a size on price rather than on the mix design and bar spacing. And accepting a tipped load before anyone has looked at it — once it is on the ground, a quality dispute becomes much harder to settle.
Ordering 20mm Aggregate in Chennai
You can see the listed rate, specifications and unit options for Aggregates 20mm today price in chennai on the product page, and browse the wider range of construction materials online alongside it. For a quantity-based quotation covering material, transport and delivery to your site, contact us with your location, required quantity and site access details, and we will confirm the current rate and what the delivered cost would be.
POURING A SLAB? ORDER THE REST WITH IT
Alongside the aggregate: buy cement online, river sand price in Chennai, P sand today price and buy TMT steel online. Other sizes are in the Sand & Aggregates collection — including 12mm for congested sections and 40mm for mass concrete. Consolidating deliveries usually reduces transport cost per item.
₹48 or ₹53–56? The Same Material, Two Bases.
The per-ton rate converts to a different per-CFT figure than the one quoted directly. Neither is wrong — they are quoted independently. Put your quantity on one basis before you compare anything.
Other Materials for Your Chennai Site
6mm to 60mm jelly, river sand, M-Sand and P-Sand.
Browse aggregates →OPC, PPC and PSC — one brand throughout the build.
Browse cement →Fe 550 bars for the slabs, beams and columns.
Browse steel →Wire cut, clay, hollow and AAC walling options.
Browse blocks →Frequently Asked Questions
Summary and Next Step
The 20mm aggregate today price in Chennai supplied by Buildiyo Store is ₹48 per CFT and ₹1,173 per ton — our listed rates, not independently verified market prices, and subject to change. What you actually pay depends on how much you order, how far it travels, how your site is accessed and what grade of material you accept. Measure the quantity first, decide which unit you are buying in, get transport quoted as its own line, and compare like with like. Do those four things and the rate becomes the simplest part of the decision.
Need a quantity-based quotation?
Send us your location, the quantity you need and your site access details. We will confirm the current rate, the unit it is quoted in, and what delivery to your site would involve — no obligation to order.
Call +91 9384819295 · +91 9384819297
Email sales@buildiyo.store
Or Contact Buildiyo Store · Chennai delivery
