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TMT Bars
Grades, sizes and the unit each material is priced in.
Overview
What this covers
Applications
Typical uses
- Reinforcement in slabs, beams, columns and footings
- Foundation and plinth reinforcement
- Retaining walls and boundary structures
- Stirrups, links and binding after cutting and bending
Specification
What identifies the material
These are the details a quotation works from. The more you can give, the fewer questions come back.
- Diameter in mm
- Grade as your drawings specify. Common specification examples include Fe 415, Fe 500, Fe 500D and Fe 550
- Length per bar
- Quantity in tonnes or pieces
- Whether cut lengths are required
- Delivery location and unloading arrangements
Comparison
How the options differ
| What it tells you | |
|---|---|
| Diameter | The bar size, in mm. Nominal, so actual weight varies within tolerance |
| Grade | The strength class your drawings specify. Fe 500 and Fe 500D are common; D denotes higher ductility requirements |
| Weight per metre | d² ÷ 162.2, derived from the section and 7850 kg/m³ |
| Length | Standard mill lengths, or cut to your schedule where capability is confirmed |
| Quantity | Usually bought by weight; a bar bending schedule converts to pieces |
Add it
Add to your material list
Add a line to your material list
Size and quantity are what a quotation needs. Everything else helps.
Availability of the specified grade is confirmed before order. Grades named anywhere on this page are common specification examples, not a statement of what is held. Any grade substitution must follow the applicable project or engineering approval. Cutting capability, tolerance, minimum length and charges are confirmed during quotation.
Calculate
Work out the weight or quantity
The calculator prints the formula and the density it used, so the figure can be checked.
Price
What affects the price
- Material and grade
- Section size and wall thickness
- Quantity
- Current market rate
- Cut lengths, where required and available
- Transport
- Unloading arrangements
Availability
What affects availability
- Size and section
- Grade or class specified
- Quantity required
- Whether the size is held or ordered in
- Supplier location
- Transport availability
Quotation
What to send with an enquiry
- Material and grade or class
- Section, diameter, width, height and wall thickness
- Length per piece, and whether cut lengths are required
- Quantity in the unit you buy
- Delivery location and site access
- Who unloads at the far end
- The date it is needed on site
Avoid
Common mistakes
- Ordering by piece count when the schedule is in weight, or the reverse
- Not stating the grade, where drawings specify one
- Forgetting that cutting and bending change the piece count
- Arranging delivery without confirming who unloads
Questions
Frequently asked
How is TMT weight calculated?
Weight per metre = d² ÷ 162.2, where d is the nominal diameter in mm. That comes from the circular cross-section and a density of 7850 kg/m³.
A 12 mm bar works out at about 0.888 kg per metre. The calculator shows the formula with every result so you can check it.
What grade do I need?
Whatever your drawings or engineer specify. We supply to the grade you state and do not substitute grades without asking — on reinforcement that is a structural decision, not a supply one.
Can you cut to a bar bending schedule?
Send the schedule with your enquiry and cutting capability, tolerance, minimum length and charges are confirmed during quotation.