Yekoms wrote:OK, now you got me thinkin'.
If usin' 3/4" plywood walls would it be better to pocket screw the spars into the plywood or screw through the plywood into the end grain of the spars? The spars would be 1"x2" poplar with Titebond glue.
Thanks,Smokey
KCStudly wrote:I am not an experienced wood worker.
I would think that the screw would have more bite in the spar (because the screw could be longer) and the head would hold better in the ply with less chance of splitting the spar due to the wedge effect of the countersunk screw head. Edit: Oops, I forgot that the Kregg screws have more of a flat washer face under the heads.
Only down side I see compared to the other way around is if you plan to paint or cover with canvas or glass you have to fill the screw head holes. I suppose even if you are covering with aluminum or FRP you would still want to fill the holes for waterproofing.
Carl, what is your thinking on doing it the other way? Like I said, I am not a wood worker, just curious to learn.
Nailing or screwing into end grain is poor practice. There is little holding strength. The splitting issue is not a problem, as you noted, because of the shape of the screw head. Never use flathead screws in pocket jointsKCStudly wrote:I am not an experienced wood worker.
I would think that the screw would have more bite in the spar (because the screw could be longer) and the head would hold better in the ply with less chance of splitting the spar due to the wedge effect of the countersunk screw head. Edit: Oops, I forgot that the Kregg screws have more of a flat washer face under the heads.
Only down side I see compared to the other way around is if you plan to paint or cover with canvas or glass you have to fill the screw head holes. I suppose even if you are covering with aluminum or FRP you would still want to fill the holes for waterproofing.
Carl, what is your thinking on doing it the other way? Like I said, I am not a wood worker, just curious to learn.
CarlLaFong wrote:KCStudly wrote: Never use flathead screws in pocket joints
Cliffmeister2000 wrote:CarlLaFong wrote:KCStudly wrote: Never use flathead screws in pocket joints
Once, when I ran out of pocket screws, I pondered using the deck screws I had in abundance. I found that using a washer, which I also had in abundance, in conjunction with the deck screw worked just fine.
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