SAR Engineering Works
Engineering Tools/Metal Calculators

Metal Weight Workbench

Rectangular Tube Weight Calculator

Rectangular and square tube weight, area, and target-length calculator.

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Calculator

Rectangular Tube Weight Calculator

Use width, height, wall thickness, density, quantity, and allowance with formula traceability.

Rectangular Tube Weight Calculator

Rectangular and square tube weight, area, and target-length calculator.

metal calculatorsstableLive auto output

Input console

Tuned defaults are preloaded. Edit only the dimensions you know; results refresh automatically when the inputs are valid.

Quick presets

1

Density is sourced from selected grade.

Default A36
2

Use the catalog grade density or override with a project-specific density.

Default catalog
3

Set once for tube dimensions and length.

Default imperial
4

Calculate tube weight from length or solve required length from a target weight.

Default weight
5

Outer tube width.

mm or in
Default 4
mm or inRange 0.1-5000 mm or in
6

Outer tube height.

mm or in
Default 2
mm or inRange 0.1-5000 mm or in
7

Nominal tube wall thickness.

mm or in
Default 0.25
mm or inRange 0.1-500 mm or in
8

Tube member length.

mm or in
Default 120
mm or inRange 0.1-200000 mm or in
9

Number of identical tube members in the order.

Default 1
Range 1-100000
10

Procurement allowance for cut loss, mill tolerance, and scrap.

%
Default 0
%Range 0-100 %

Material quick select

Use case

Estimate HSS tube tonnage with dimensions you can audit.

Use width, height, wall thickness, density, quantity, and allowance with formula traceability.

Trusted inputs

ASTM A500/A1085 HSS nominal geometry convention

ASTM material density tables

Hollow rectangular section formula

Range notes

Wall thickness must stay below half of the smaller tube side.

Square tube uses the same width and height value.

Quantity and allowance are applied to order weight.

Supports catalog or custom material density with kg/m³ and lb/in³ input.

Inverse mode solves required tube length from a target weight.

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