Best Aluminum Tubes for String Lighting Fixtures (2026)

Selections prioritized 6063-series extruded square tubes with common 0.125" wall thickness, consistent mill or unpolished finishes, practical lengths for lighting projects, and competitive per-inch value

This roundup covers aluminum square tubing suited for string lighting fixtures, focusing on fit, corrosion resistance, and ease of machining for mounting and wiring. Picks were chosen from 6063-series extrusions with commonly used wall thicknesses and lengths, evaluated for dimensional consistency, finish, and value-per-inch

Top Picks

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    6063 aluminum tube - square, unpolished, 1.25" height, 0.125" wall, 24" length

    6063 aluminum tube - square, unpolished, 1.25" height, 0.125" wall, 24" length

    Online Metals • ★ 3.7/5 • Budget

    6063 aluminum tube with square cross-section, unpolished finish, extruded and T52 tempered. Delivers corrosion resistance and smooth surface with precise dimensions; suitable for lightweight structure projects. Customers note solid build quality and good value for money

    • 6063 alloy with corrosion resistance
    • square extruded cross-section
    • T52 temper for strength
    Check current price on Amazon →
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Buying Guide

Choose the right alloy and temper

6063 aluminum (often T52 or T6 temper) is common for extruded tubing and balances formability with corrosion resistance for outdoor or indoor string lighting frames

Match wall thickness to load and wiring

0.125-inch wall tubing provides a common balance of strength and weight for light-duty fixtures and routing low-voltage wiring without excessive bulk

Pick a compatible cross-section and height

Square tubing heights (1" to 1-3/4" in this selection) affect mounting footprint and socket compatibility; choose a profile that fits your fixture brackets and connectors

Consider finish for aesthetics and corrosion control

Mill finish or unpolished extrusions are typical; for outdoor use, factor in surface treatments or paint for added protection and desired appearance

Balance length options and value

Shorter precut lengths reduce waste for small projects while longer pieces offer better per-inch value; compare per-foot cost across suppliers to match project scale