Light duty box bottom question - Woodworking Talk - Woodworkers Forum
 
Thread Tools Display Modes
post #1 of 7 Old 05-26-2018, 11:21 AM Thread Starter
Junior Member
 
Join Date: Apr 2018
Posts: 25
View Richard L's Photo Album My Photos
Light duty box bottom question

I am making a box roughly 22 long by 12 deep and 12 tall. Instead of a dado groove and floating bottom I was thinking of rabbiting the sides so the bottom could sit flush inside or rabbiting the bottom and having the sides sit on top exposing the edge of the bottom a little.

Both ways it would need to be glued in and I wondered if this was going to break over time with expansion and contraction. The wood is high quality Baltic birch not big box stuff. It will However see significant humidity and temp swings.

I really don't want to use pocket screws or nails, before I did that I would just move forward with a floating bottom groove.

Any feedback appreciated.
Richard L is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 05-26-2018, 12:13 PM
Senior Member
 
Brian T.'s Avatar
 
Join Date: Dec 2012
Location: McBride, BC
Posts: 2,648
View Brian T.'s Photo Album My Photos
Is the bottom of the box going to be visible in service?
I suggest something else like furniture grade G1S plywood.
Screws from underneath that won't be visible.
If the screws are visible, I'd show off with bright brass, just to be different.
Brian T. is offline  
post #3 of 7 Old 05-26-2018, 12:30 PM Thread Starter
Junior Member
 
Join Date: Apr 2018
Posts: 25
View Richard L's Photo Album My Photos
The bottom won't be viable at all. It is a knock around box not furniture but I would like it to look good simply because I am making it.

Won't screws create the same expansion and contraction issue?
Richard L is offline  
Sponsored Links
Advertisement
 
post #4 of 7 Old 05-26-2018, 01:32 PM
Senior Member
 
Join Date: Sep 2016
Location: Cyprus
Posts: 365
View sunnybob's Photo Album My Photos
How thick is the ply? 1/2" or less and there wont be enough glue surface to hold the weight of the contents.
Any particular reason you dont want to make it the strongest way?
sunnybob is offline  
post #5 of 7 Old 05-26-2018, 01:40 PM
Senior Member
 
Brian T.'s Avatar
 
Join Date: Dec 2012
Location: McBride, BC
Posts: 2,648
View Brian T.'s Photo Album My Photos
They could but plywood sheet grains run in opposite directions for dimensional stability.

There's plywood sheeting nailed into the construction of my entire house roof.
In the past 12 months, I have recorded shade air temperatures (not in full sun like up on the roof)
from +47C down to -30C. The dimensional stability of the roof seems intact.

My entire kitchen cupboard set is custom plywood construction and painted.
The floating drawer bottoms rattled until I added a couple of brads at one end.
Kind of like hanging watercolor paintings for framing.

All of it has been subjected to a temperature range of +12C up to maybe +35C.
The drawers don't exhibit any seasonal stickiness.

The whole house does shrink in winter. Most depressing.
Just enough to use the deadbolt lock to keep the front door shut in extreme cold!
Brian T. is offline  
post #6 of 7 Old 05-26-2018, 05:44 PM
Senior Member
 
Join Date: Sep 2011
Posts: 26,052
View Steve Neul's Photo Album My Photos
That would be alright. Usually the sides of a box like that have a dado because a piece of 1/4" plywood is used for the bottom but if you are using 1/2" or bigger material for the bottom a rabbet would be fine.
Steve Neul is offline  
post #7 of 7 Old 05-26-2018, 07:05 PM Thread Starter
Junior Member
 
Join Date: Apr 2018
Posts: 25
View Richard L's Photo Album My Photos
Thanks for the feedback.
Richard L is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Question about connecting top to bottom SomeDudeOnline Design & Plans 13 04-04-2018 01:09 AM
Beech bottom Stanley No27 Question wickedsolo General Woodworking Discussion 4 02-10-2018 11:42 PM
Sanding Blocks TomCT2 Hand Tools 8 11-09-2017 10:09 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome