What is a wood angle section?

A wood angle (or L-section) is a piece of lumber milled into an L shape — two flat legs joined at a right angle, like a corner brace or trim piece.

How is the cross-section area calculated?

Area = (Leg A width × thickness) + (Leg B width × thickness) − (thickness²). The corner square where both legs overlap is subtracted once so it is not double-counted.

Which density values are used for each species?

Values are average dry densities in lb/ft³: Pine 31, Douglas Fir 32, Oak 45, Maple 44, Cedar 23, Walnut 38, Birch 43, Poplar 28, Ash 41, Cherry 35. You can override these with a custom density.

Does moisture content affect the result?

Yes — the preset densities are for kiln-dried (approximately 12% MC) lumber. Green or wet wood can be 30–50% heavier. Use the custom density field for wet-service calculations.

Can I enter dimensions in feet instead of inches?

Leg and thickness fields are in inches. The length field accepts either inches or feet — choose your unit from the drop-down next to that field.

Wood Angle Weight Calculator

Name: Wood Angle Weight Calculator
Availability: InStock
Author: Nham Vu

Calculate the weight of an L-shaped wood angle section by entering leg dimensions, thickness, length, and wood species.

Section Dimensions

Leg A width (vertical, in)

Leg B width (horizontal, in)

Thickness (in)

Length

Wood species

Weight (lb)

—

pounds

Weight (kg)

—

kilograms

Calculation Details

Cross-section area	—
Length	—
Volume	—
Density	—

Formula: Area = (A × t) + (B × t) − t² | Volume = Area × Length | Weight = Volume × Density

Summary

Calculate the weight of an L-shaped wood angle section by entering leg dimensions, thickness, length, and wood species.

How it works

Enter the width of Leg A (the vertical leg) in inches.
Enter the width of Leg B (the horizontal leg) in inches.
Enter the thickness shared by both legs in inches.
Enter the total length of the angle section in inches or feet.
Select a wood species (or enter a custom density).
Click Calculate to get the weight in lb and kg instantly.

Use cases

Estimating lumber weight for structural framing corners.
Checking load limits for shelving and furniture L-brackets.
Calculating shipping weight for custom wood trim orders.
Verifying material take-offs on woodworking project plans.
Comparing weight differences across wood species.
Teaching cross-sectional area calculations in engineering courses.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu