LumberJocks

Span for DVD/Blu-ray shelf

  • Advertise with us

« back to Designing Woodworking Projects forum

Forum topic by silver8ack posted 1576 days ago 766 views 1 time favorited 2 replies Add to Favorites Watch
View silver8ack's profile

silver8ack

12 posts in 1576 days


1576 days ago

Hey everyone!

I’m just getting started in ‘fine’ woodworking. My first project will be a dvd/blu-ray shelf. I have most of it planned out, but I’m concerned about the span.

I’m planning on making the shelf(floor standing btw) 41” wide with 40” shelves set in 1/4” dados. Was planning on just using #2 pine for this for 2 reasons. 1, I will probably mess up a few time and 2, I am painting this black so grain doesn’t matter.

My concern is sag. DVD/Blurays aren’t that heavy but I’m wondering if I will get sag regardless at that span, and if there is anything I can do without putting supports in. If I use 1/4” plywood on the back and glue each shelf to it, will that help support? What about nails in the back?

If I should use dividers, just tell me(although I’d rather not :) ).


2 replies so far

View Lifesaver2000's profile

Lifesaver2000

508 posts in 1707 days


#1 posted 1576 days ago

Here is a link someone else here on LJ’s gave me, and it has been very useful:

http://www.woodbin.com/calcs/sagulator.htm

I just finished a little project similar to yours, using painted #2 pine for shelves for paperback books and VHS tapes or DVDs, with a 36” span, and I would not have even considered not supporting it along the entire back length of the shelves. In my case I used 1-1/2 inch strips, which I rabbeted 3/4×3/8 to accept the back of the shelf, since this was to be attached the wall. I am not among the experts on such things here, but it seems to me that if the back of each shelf is firmly attached to your 1/4 inch plywood, it should serve the same purpose.

View silver8ack's profile

silver8ack

12 posts in 1576 days


#2 posted 1576 days ago

Thanks for the link. I tried it out using Eastern Pine. Span of 40” width of 7” (7 1/4” boards minus 1/4 for the rabbit around the back). and a thickness of 3/4”. Came out to .02” of sag per foot. So I don’t think it will be too bad especially if I glue and even nail the plywood back to the shelves.

Thanks again!

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase