T8 Rebar - 8mm High Tensile Reinforcement Bar
Alternative Names: T8 Rebar, H8 Rebar, 8mm Rebar, 8mm Reinforcement Bar, 8mm Steel Bar, 8mm Reinforcing Bar, Reinforcing Steel, Steel Reinforcing Bar, High Tensile Rebar, High Tensile Steel Bar, Deformed Bar, Ribbed Bar, Ribbed Steel Bar, Concrete Reinforcing Bar, Groundworks Steel, Steel Rod, Straight Bar, Stock Bar, Ground Beam Steel, Foundation Bar, BS4449 Rebar, CARES Approved Rebar
T8 rebar (also specified as H8) is the smallest-diameter reinforcing bar Next Day Steel holds in stock: an 8mm high-tensile ribbed bar rolled to BS 4449:2005, Grade B500B. Its slim section and deformed surface make it the natural choice for links, stirrups and lighter reinforcement where a heavier bar would simply add cost and weight without benefit. Light and easy to cut and bend on site, it is equally at home in repair work, fixings and fine reinforcement detailing where space is tight.
Typical applications
- Shear links and stirrups in beams and columns
- Starter, dowel and tie bars
- Light ground-floor slabs, footings and kerb foundations
- Crack control, reinforcement detailing and repair work
- Small-scale domestic projects
Why buy from Next Day Steel
We carry 8mm rebar in volume for next-day delivery, cut to a handy 3m length for easier site handling, with full CARES traceability on every bundle. Because it is available by the bar as well as in bulk, it suits one-off jobs and large fixing schedules alike. Pair it with our reinforcement mesh and spacers for a complete pour, or browse all rebar sizes.
Working to a bending schedule? Send it over and we'll come back with our best price for cut-and-bent bar.
T8 (8mm) bar lengths & weights
- Weight per bar
- 1.3 kg
- Price
- £3.51 + VAT
- Weight per bar
- 2.6 kg
- Price
- £4.68 + VAT
Rebar size comparison (BS 4449, Grade B500B)
High-tensile ribbed reinforcing bar to BS 4449:2005. T and H prefixes both denote Grade B500 high-yield bar; the number is the diameter in millimetres. Click a size to view it.
| Size | Diameter | Mass (kg/m) | Bar area (mm²) | Stock lengths | Typical use |
|---|---|---|---|---|---|
| T8 you are here | 8mm | 0.395 | 50 | 3m & 6m | Links, stirrups, light detailing |
| T10 | 10mm | 0.617 | 79 | 3m & 6m | Links, ground beams, domestic foundations |
| T12 | 12mm | 0.888 | 113 | 3m & 6m | Slabs, footings, general RC work |
| T16 | 16mm | 1.579 | 201 | 3m & 6m | Beams, columns, pile caps, retaining walls |
| T20 | 20mm | 2.466 | 314 | 3m & 6m | Heavy frames, rafts, basements |
| T25 | 25mm | 3.854 | 491 | 6m | Large columns, piles, transfer beams |
| T32 | 32mm | 6.313 | 804 | 6m | Bridges, deep foundations, cores |
| T40 | 40mm | 9.864 | 1257 | 6m | Major civils, heaviest foundations |
T8 rebar: frequently asked questions
What is T8 rebar used for?
T8 (8mm) high-tensile rebar is used for shear links, stirrups, tie bars and light reinforcement detailing. The ribbed profile bonds the bar to the concrete so the two work together under load.
What does the T in T8 mean, and is it the same as H8?
The T stands for high-tensile (high-yield) steel. T8, H8 and 8mm rebar all describe the same bar: Grade B500B deformed reinforcing bar to BS 4449:2005 with a 8mm nominal diameter.
How much does a T8 bar weigh?
A 3m T8 bar weighs 1.3 kg, and A 6m T8 bar weighs 2.6 kg. Nominal mass for 8mm bar is shown in the comparison table above.
How much does 8mm rebar cost?
T8 rebar starts from £3.51 + VAT per bar, with current per-length prices shown above. Bulk-buy discounts apply automatically as weight is added to the cart, and cut and bent shapes are priced from your bending schedule.
What standard is T8 rebar manufactured to?
Our 8mm bar is Grade B500B high-tensile ribbed rebar to BS 4449:2005, CARES approved with full mill traceability. (Reinforcement is certified through the CARES scheme rather than CE marking, as EN 10080 is not a harmonised standard.)
Groundworks
Frequently Bought Together
