Contractor Job Estimator
Price remodels and GC work, then send a quote with no internal numbers.
Excel or Google Sheets. Best on a computer.
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BuyMetal Weight vs Pipe/Tube Which Calculator?
Pick the right weight tool for plate/bar vs schedule pipe and tubing — before a solid-bar mistake wrecks the quote
Use with the Metal Weight Calculator, Pipe & Tube Weight Calculator, and weight troubleshooting when numbers still fight the scale.
Quick Decision
| Stock | Use this | Why |
|---|---|---|
| Plate, sheet, flat bar, solid round/square | Metal Weight Calculator | Solid volume × density |
| Pipe with NPS / schedule | Pipe & Tube Calculator | Wall from schedule; OD conventions |
| Tube with known OD + wall | Either (pipe/tube preferred) | Dedicated hollow inputs reduce mistakes |
| Structural tube as “box” | Metal weight hollow rect / pipe tool | Do not treat as solid billet |
When the General Metal Weight Calculator Wins
Plate nests, flat bar frames, solid shafting, and multi-shape kits where you already know decimal thickness/width/length. The general tool shines when you mix plate + bar on one quote and want one workflow. Start from the guide if formulas are unfamiliar.
If you catch yourself typing an ID of zero “to make it solid,” you are in the right calculator — just pick the solid shape explicitly.
When the Pipe & Tube Calculator Wins
Schedule pipe (Sch 40/80), tubing called out by OD × wall, and any job where nominal pipe size ≠ OD in a way that trips solid-bar habits. The pipe tool’s inputs match how distributors talk. Using the general calculator with “close enough” OD as a solid round is the #1 overweight failure mode in troubleshooting.
Common Mix-Ups
NPS vs OD: 1" pipe is not 1.000" OD. If the print says 1" Sch 40, use the pipe calculator — do not invent a 1" solid.
Wall vs ID: Entering ID instead of wall (or reverse) swings weight hard. Mic and label the input.
Aluminum tube on steel density: Calculator choice will not save a wrong alloy — fix material first.
Recommendation
Default: plate/bar → Metal Weight Calculator. Anything with a bore or schedule → Pipe & Tube Calculator. When weight still disagrees with a scale, troubleshoot inputs — do not bounce calculators endlessly.
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Recommended Tools for Weight Checks
Five CSV catalog picks — weigh what you ordered, measure what you entered, move and store stock safely
Scale
TIPRE 660 lb Digital Platform Scale
- Verify theoretical vs actual weight
- Large platform for plate and bar
- Receiving and shipping checks
- Shop Supplies catalog
Measure
Starrett Electronic Slide Caliper
- Confirm OD, wall, thickness inputs
- Catch dimension entry errors
- Measurement catalog
- Shop QC staple
Lift
DIYMAG 350 lb Lifting Magnet
- Move steel after weight confirmed
- Safer staging near scale
- Shop Supplies catalog
- Reduce awkward lifts
Store
Yardenaler 8,000 lb Storage Rack
- Organize stock by material
- High capacity shop storage
- Shop Organization catalog
- Keeps weighed lots labeled
Prep
DEWALT 4.5 in Angle Grinder
- Deburr after cutting weighed stock
- Common fab bench tool
- Welding / Fab catalog
- Cleanup before shipping weigh
As an Amazon Associate, TestTalkHQ earns from qualifying purchases. All five cards sourced only from the affiliate CSV. Catalog gaps: certified crane scales, densitometers, material cert scanners.