Plywood Span help for seating bench

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Forum topic by hammester posted 05-22-2014 03:49 PM 1519 views 0 times favorited 4 replies Add to Favorites Watch
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11 posts in 2652 days

05-22-2014 03:49 PM

 photo StorageBench_zps91bf2c50.png

I am planing on making the attached storage seating bench this weekend but am unsure if it will work or not. I am concerned with the vertical spacing that I have. With people sitting on the bench I am not sure if it will sag or not. I am planing on using 3/4” plywood for the top and bottom of the bench and using 2×4 to build a frame to hold them. The vertical slats would also be made of 3/4 plywood. I just don’t think that will be enough to support the weight of people sitting. Any ideas how to achieve such long spans between the vertical slats (44.5”) I plan to put a face frame on it using 1×2’s.

4 replies so far

View ChefHDAN's profile


1133 posts in 2998 days

#1 posted 05-22-2014 04:40 PM

Hammester, we’re gonna need a better image, at 300% I can’t even make out the specs

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

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11 posts in 2652 days

#2 posted 05-22-2014 05:18 PM

Sorry about that didn’t realize how small it was. I uploaded it to photobucket so hopefully that makes it more readable.

View pintodeluxe's profile


5758 posts in 2962 days

#3 posted 05-22-2014 06:09 PM

A 2×4 set vertically over a 44” span should be fine. A 2×4 laid flat will sag a little. The 3/4” plywood will help to add some structure.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View gfadvm's profile


14940 posts in 2838 days

#4 posted 05-23-2014 01:01 AM

Like Pinto said. Make the frame under the top from 2×4s on edge and it won’t sag.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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