LumberJocks

"Thin" Heartwood Pine for a Table Top

  • Advertise with us

« back to Designing Woodworking Projects forum

Forum topic by wkerr posted 05-23-2017 03:33 PM 876 views 0 times favorited 7 replies Add to Favorites Watch
View wkerr's profile

wkerr

10 posts in 2889 days


05-23-2017 03:33 PM

Topic tags/keywords: question pine joining

I have lots of ships lapped heart pine coming out of the house that my grandparents lived in most of their lives. This material, when planned and ready for joinery will be around 5/8 inch thick. I really want to build a table top out of this for obvious sentimental reasons, but I’ve yet to settle on a solution for the thickness. looking for suggestions on how to build this top. I thought about using a substrate but not sure if that’s reasonable or not.

Thanks in advance.


7 replies so far

View LittleShaver's profile

LittleShaver

419 posts in 817 days


#1 posted 05-23-2017 05:55 PM

A layer or two of plywood should serve nicely. Consider edge banding the ply with strips of pine.

-- Sawdust Maker

View jdh122's profile

jdh122

1052 posts in 3015 days


#2 posted 05-23-2017 07:10 PM

Do you have enough to double the thickness by laminating two thicknesses together? That would bring you to just over an inch thick, which is visually about right to my eye.

A plywood substrate will probably work, but I’d worry a bit about wood movement gluing the wood to the plywood, given that the plywood will be more stable than the pine. It might be OK since pine is pretty dimensionally stable.

-- Jeremy, in the Acadian forests

View Rich's profile

Rich

3871 posts in 787 days


#3 posted 05-23-2017 07:24 PM


A plywood substrate will probably work, but I’d worry a bit about wood movement gluing the wood to the plywood, given that the plywood will be more stable than the pine. It might be OK since pine is pretty dimensionally stable.

Folks use plywood as a base for veneer all the time. Not the thin, paper-backed stuff either. If he’s attaching shiplapped boards, they aren’t going to move across the grain enough to matter.

I think Dan pretty much nailed it.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View Carloz's profile

Carloz

1147 posts in 789 days


#4 posted 05-23-2017 08:20 PM



A layer or two of plywood should serve nicely. Consider edge banding the ply with strips of pine.

- Dan Hulbert


one should be very careful taking free advice from internet

View TungOil's profile (online now)

TungOil

1055 posts in 693 days


#5 posted 05-23-2017 11:23 PM

5/8” would be too thick to veneer, I wouldn’t go thicker than 1/8” for veneer glued to plywood cores and even then you need to use a urea formaldehyde glue like Weldbond to assure it won’t creep over time. I think Jeremy has the right idea, if you have enough material to glue up two thicknesses you can create some thicker boards that you can then glue up like a thicker solid tabletop.

Also, as someone who is in the middle of making a table from shop sawn veneers over ply core, I can tell you it’s a huge amount of work compared to just gluing up a solid top and you’ll need a vacuum press to really make it look right when it’s done.

-- The optimist says "the glass is half full". The pessimist says "the glass is half empty". The engineer says "the glass is twice as big as it needs to be"

View Woodknack's profile

Woodknack

12430 posts in 2578 days


#6 posted 05-24-2017 01:04 AM

Do not attach plywood to the bottom of the tabletop. If you want to make it appear thicker, glue a second layer on the bottom, around the edges only.

https://wunderwoods.wordpress.com/2013/09/17/how-to-make-a-thick-countertop-out-of-thin-wood/

-- Rick M, http://thewoodknack.blogspot.com/

View ADN's profile

ADN

193 posts in 811 days


#7 posted 05-31-2017 03:56 PM

If the pine heartwood is that thick 5/8 then no reason to glue it to the substrate, just edge band it with a rabbet (lip) to capture the substrate. You can even do a few elongated holes with screws and washers if required.

I’ve made several islands and bar tops using this method and it works great…

Andy

-- mos maiorum

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