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RetSysEng

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- TL;DR Summary
- Aluminum Angle Deflection calculation for 48" x 36" platform sizing

Hello Everyone,

I'm a retired systems engineer from the aerospace industry, while working part of my job was to come up with concepts and then have great mechanical engineers implement them. Now that I'm retired I have to do both parts for myself. I'm designing a storage hoist to get heavy things into my attic. I've found online beam deflection calculators I've used for the steel rectangle tubing and steel round tubing portions of my design but I'm unable to find any calculators for aluminum angle deflection.

My load platform will be a 48" x 36" 6061 aluminum angle four sided frame with two aluminum angle 36" cross members at 18" spacing. I would like to use 1" x 1" x 1/8" 6061 angle for the entire thing to keep both weight and cost down but I'm concerned that maybe to light and may need to upsize to the 3/16" or 1/4" thickness or even move to 1 1/4" x 1 1/4" or 1 1/2" x 1 1/2" size angle in a 1/8", 3/16" or 1/4" thickness.

I'm designing for a 200 pound, uniformly distributed load across the 48" x 36" platform. Can anyone point me to any free online aluminum angle deflection calculators or provide me with insight or guidance on the best choice size of aluminum angle to use in selecting one of the sizes, 1" x 1", 1 1/4" x 1 1/4" or the 1 1/2" x 1 1/2", in one of the thicknesses, 1/8", 3/16" or 1/4" ?

Your help and insight is greatly appreciated!

I'm a retired systems engineer from the aerospace industry, while working part of my job was to come up with concepts and then have great mechanical engineers implement them. Now that I'm retired I have to do both parts for myself. I'm designing a storage hoist to get heavy things into my attic. I've found online beam deflection calculators I've used for the steel rectangle tubing and steel round tubing portions of my design but I'm unable to find any calculators for aluminum angle deflection.

My load platform will be a 48" x 36" 6061 aluminum angle four sided frame with two aluminum angle 36" cross members at 18" spacing. I would like to use 1" x 1" x 1/8" 6061 angle for the entire thing to keep both weight and cost down but I'm concerned that maybe to light and may need to upsize to the 3/16" or 1/4" thickness or even move to 1 1/4" x 1 1/4" or 1 1/2" x 1 1/2" size angle in a 1/8", 3/16" or 1/4" thickness.

I'm designing for a 200 pound, uniformly distributed load across the 48" x 36" platform. Can anyone point me to any free online aluminum angle deflection calculators or provide me with insight or guidance on the best choice size of aluminum angle to use in selecting one of the sizes, 1" x 1", 1 1/4" x 1 1/4" or the 1 1/2" x 1 1/2", in one of the thicknesses, 1/8", 3/16" or 1/4" ?

Your help and insight is greatly appreciated!