Rebar Weight Takeoff
ASTM A615 nominal bar weight per foot x total linear feet, to tons and cost.
Example
You enter
- Bar size 5
- Total linear feet of this size 500
You get
- Weight (lb) 521.5
- Tons 0.2608
Details, formula, and sources
A #5 bar (1.043 lb/ft) x 500 ft -> 522 lb (0.26 ton); a #8 (2.670) at the same length weighs 1,335 lb (0.67 ton), more than double for the #5-to-#8 jump. Rebar is bought by weight. Add lap and waste before the takeoff. The shop drawings and mill weights govern.
weight = unit_wt(bar_size) x total_len_ft; tons = weight / 2000; cost = weight x price_per_lb.
The ASTM A615 nominal reinforcing-bar unit weights (#3 0.376 lb/ft ... #18 13.60 lb/ft), by name.
The nominal bar weights are the standard ASTM A615 values, published in every rebar reference; the arithmetic is public.
Estimate. AHJ and licensed professional govern.
Field names used by the API: bar_size, total_len_ft, weight_lb, tons
- Nominal weights ASTM A615: #3 0.376 ... #11 5.313, #14 7.65, #18 13.60 lb/ftASTM A615
- Weight and tons weight = unit weight x length; tons = weight / 2000arithmetic
- Placed length add lap and waste before the takeoff; the bar list governsscope of this tile