How do you calculate pounds per foot for an aluminum profile?

Weigh a measured sample and divide weight by length. A 420 lb sample over 1,200 ft gives 0.35 lb/ft; applying a 98% recovery adjustment yields an effective 0.343 lb/ft.

How do I find lb/ft from a profile's cross-section?

Multiply the cross-sectional area by the density of aluminum (about 0.0975 lb/in³ for 6063) and convert to per-foot. Weighing a real sample, as this calculator does, captures actual wall thickness and is more accurate than nominal area.

Why apply a recovery or accepted-length adjustment?

Not all extruded length ships — front/back scrap, stretcher grip ends and out-of-tolerance sections are cut off. The 98% factor here reduces 0.35 to 0.343 lb/ft to reflect what you can actually sell and invoice.

What is a typical lb/ft for aluminum extrusions?

It ranges enormously by section — thin trim profiles can be a fraction of a pound per foot like the 0.343 example, while heavy structural sections run several pounds per foot. The number is meaningful only relative to the specific profile.

How is pounds per foot used in quoting?

Multiply lb/ft by the order length to get total weight, then by your metal-plus-conversion price per pound. Getting lb/ft slightly wrong scales the entire quote, so verifying it from a real sample protects margin.

Does pounds per foot tell me if my die is correct?

Yes — if measured lb/ft drifts above nominal, walls are running thick (wasting metal); below nominal, walls are thin (risking strength and rejects). It's a fast quality check on a new or worn die.

Aluminum Extrusion & Profile Manufacturing calculator

Aluminum Profile Pounds per Foot Calculator

Pounds per foot is the fundamental unit-weight of an extruded aluminum profile — how much the section weighs for every linear foot. It is the bridge between metal cost and length-based orders: quoting, die design verification, and shipping weight all depend on it. Estimators use it to price orders, quality teams use it to confirm a die is producing the right wall thickness, and schedulers convert between feet and pounds of capacity. This calculator derives lb/ft from a weighed sample and then applies an accepted-length or recovery adjustment so the figure reflects sellable material, not raw extrudate.

What this calculator does

Estimate effective profile weight per foot from net extruded weight, measured length, and an adjustment for accepted length or recovery.
an estimator or profile designer needs to validate profile weight before quoting or ordering material
Computes measured pounds per foot from a weighed sample's weight and length, then adjusts it by an accepted-length or recovery factor to give effective lb/ft.

Formula used

Measured profile pounds per foot = net profile sample weight ÷ measured profile sample length
Effective profile pounds per foot = measured pounds per foot × accepted length or recovery adjustment

Inputs explained

Net profile sample weight:
Measured profile sample length:
Accepted length or recovery adjustment:

How to use the result

Use it to verify a new die's section weight, price length-based orders in metal cost, and convert between feet and pounds for capacity planning.
It assumes the sample is representative — a single short sample from an off-spec section or with non-uniform wall thickness will give a lb/ft that doesn't match the production average.

Current U.S. benchmarks

The producer price index for aluminum mill shapes stands at 404.859 (BLS, May 2026), up 36.8% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The U.S. has 3,569 primary metal manufacturing establishments employing about 354,911 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate pounds per foot for an aluminum profile? Weigh a measured sample and divide weight by length. A 420 lb sample over 1,200 ft gives 0.35 lb/ft; applying a 98% recovery adjustment yields an effective 0.343 lb/ft.
How do I find lb/ft from a profile's cross-section? Multiply the cross-sectional area by the density of aluminum (about 0.0975 lb/in³ for 6063) and convert to per-foot. Weighing a real sample, as this calculator does, captures actual wall thickness and is more accurate than nominal area.
Why apply a recovery or accepted-length adjustment? Not all extruded length ships — front/back scrap, stretcher grip ends and out-of-tolerance sections are cut off. The 98% factor here reduces 0.35 to 0.343 lb/ft to reflect what you can actually sell and invoice.
What is a typical lb/ft for aluminum extrusions? It ranges enormously by section — thin trim profiles can be a fraction of a pound per foot like the 0.343 example, while heavy structural sections run several pounds per foot. The number is meaningful only relative to the specific profile.
How is pounds per foot used in quoting? Multiply lb/ft by the order length to get total weight, then by your metal-plus-conversion price per pound. Getting lb/ft slightly wrong scales the entire quote, so verifying it from a real sample protects margin.

Last reviewed 2026-05-12.