Rebar bid estimation — AI calculates weight for you
Rebar bid estimation starts with calculating steel quantities. Massoi reads structural drawings and calculates steel weight, mesh quantities, and lap lengths automatically.
Challenges in rebar bid estimation
Hundreds of bars per structure
A single footing can have 4-6 different bar sizes, stirrups, longitudinal bars, and dowels. The quantity, length, and weight of each must be calculated.
Lap lengths and bends
Rebar lap lengths depend on bar size and concrete strength. Bends increase material consumption.
Price per pound varies greatly
Rebar work price ranges from $0.80-1.50/lf installed — a small error in weight multiplies in dollars for jobs with tens of thousands of pounds of steel.
How does AI-powered rebar bidding work?
Upload rebar details
Upload structural drawings and rebar details. Massoi identifies bar sizes, stirrup spacing, and mesh types.
AI calculates steel quantities
AI calculates bar quantities, lengths, lap lengths, and total weight, as well as mesh square feet.
Price and bid
Review weights, add material and labor unit prices per structure — submit your bid.
Rebar work price guide 2026
Indicative prices including materials and labor.
| Work | Price | Note |
|---|---|---|
| Rebar placement labor | $0.35-0.60/lb | Installation, material not included |
| #4 rebar (material) | $0.40-0.70/lf | Grade 60 deformed bar |
| Welded wire mesh (installed) | $0.50-1.20/sqft | 6x6 W1.4xW1.4 + installation |
| Rebar turnkey (supply + install) | $0.80-1.50/lf | Material + labor, #4 bar |
| Footing rebar | $6-12/lf | Typical strip footing |
| Wall rebar | $2-4/sqft | Double-mat reinforcement |
| Slab rebar / tying labor | $1-2/sqft | Mesh or loose bars |
| Rebar bending | $0.05-0.15/lb | Shop-bent, surcharge |
Try how AI calculates rebar weights from blueprints in seconds.
Frequently asked questions about rebar bid estimation
How are rebar quantities calculated for a bid?
Rebar quantities are calculated from structural drawings by counting bar quantities, lengths, and weights. For mesh, square feet are calculated. Lap lengths depend on bar size and concrete strength. Bends are accounted for separately.
How much does rebar work cost per pound?
Rebar installation labor (without material) costs $0.35-0.60/lb. A turnkey package including materials costs $0.80-1.50/lf for #4 bar. Price is affected by complexity and installation conditions.
What is the waste percentage for rebar?
Rebar waste varies by method. Welded wire mesh has 3-5% waste (minimal cutting waste). Loose bars have 8-12% waste due to cuts and bends. Pre-fabricated bars reduce waste by 2-4 percentage points.
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