4/4 cedar surface planed on 2 sides

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Forum topic by jeffroL posted 04-07-2012 12:35 AM 2365 views 0 times favorited 7 replies Add to Favorites Watch
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10 posts in 2299 days

04-07-2012 12:35 AM

Topic tags/keywords: cedar


I’m trying to reconcile some inconsistencies and was hoping to get some help. Some folks advertise that their 4/4 stock is 13/16” thick smooth 2 sides, whereas others have it as 1” thick S2S. Should it not be standard?

So when they advertise that the stock is 3/4” (smooth on 2 sides), is it truly 3/4”?


7 replies so far

View jeffroL's profile


10 posts in 2299 days

#1 posted 04-07-2012 12:37 AM

BTW, I was also trying to find a place I can go to to get lumber in and around Chester Counter nearly Philly – with good broad selection and also good advice.


View cabmaker's profile


1730 posts in 2806 days

#2 posted 04-07-2012 01:21 AM

Jeff, good luck on your reconciliations. No matter where you are 4/4 stock is one inch thick. One might make referance to it as 4/4 after surfacing but the fact remains if it is not one inch it is not 4/4. Most material handlers that do rough milling will provide a 13/16 as that is the most desired by the cabinetmaking industry. Cabinet shops ultimately end up with 3/4 nominal thickness after their own milling processes. If one is offering stock as s2s that simply means it has been planed on two sides without a straight edge. If it is offered as surface two sides with one edge straghtlined (most common) It will be referanced as SLR (straghtlined ripped or SLR 1E). There never used to be anything called s4s to my knowledge.I do understand what one is talking about when they use that term but the real world term would be S2S 2E.Dont assume your potential supplier understands it all, sometimes they need training. BTW I built ,delivered and installed a couple of tech labs in your town a few years ago. That was the only experiance I ever had there and I gotta tell you everyone I crossed paths with there were the nicest bunch of folks I ever delt with. Enjoy the journey,JB

View HerbC's profile


1755 posts in 2857 days

#3 posted 04-07-2012 05:05 PM

It’s my understanding that 4/4 hardwood lumber, when initially rough milled at the sawmill is 1 1/8” thick. It normally shrinks slightly during drying, and typically is 1” to 1 1/16” thick when dried. When milled (planed) for S2S it may be as thin as 13/16” thick.

-- Herb, Florida - Here's why I close most messages with "Be Careful!"

View BigMig's profile


439 posts in 2611 days

#4 posted 04-07-2012 09:32 PM

Delaware County Supply has very good lumber selection in the Phila surrounding area – just south of Phila on I95. Farther out – Hearne Hardwoods has excellent exotic selection and absolutely expert information about what they sell.

-- Mike from Lansdowne, PA

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1742 posts in 2473 days

#5 posted 04-08-2012 11:04 AM

Herb, you are exactly. The Industry standard for rough sawn hardwood lumber is 1 1/8” thick. That is the thickness that I cut to on my mill for 4/4. It easily planes to 7/8 and most times to 15/16.

-- Danny Located in Perry, GA. Forester. Wood-Mizer LT40HD35 Sawmill. Nyle L53 Dehumidification Kiln.

View jeffroL's profile


10 posts in 2299 days

#6 posted 04-08-2012 10:20 PM

Thanks folks. I’m now looking at buying some lumber off eBay and the guy selling it has Spanish cedar for sale and has it advertised as 4/4 S2S. In his detailed description he indicated that the thickness is actually 1”. It just see,s like there ire no standards.

View doninvegas's profile


334 posts in 2905 days

#7 posted 04-08-2012 10:30 PM

I always thought that 4/4 S2S was 15/16” and 5/4 S2S was 1”. At least that is what I have gotten. I get my Cedar 5/4 rough which is 1 1/4”.

-- "Courage is being scared to death -- but saddling up anyway."

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