Nail Spacing

mms

I am attaching 2-1/2" wide X 3/4" thick oak architectural moulding to 3/4" oak plywood in a panel arrangement.

What should be the minimum nail spacing I should use?

Glasshousebltr

8 to 10 inches.

Bob

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Bob

mms

OK thanks!

I forgot to ask if it is necessary to have two rows of nails at
this spacing (one along outside edge and one along inside edge of trim)?

If yes, then side by side or staggered?

I should maybe also mention that the plywood is exposed on the backside, therefore I will be using 1-1/4" nails (so as not to protrude
out the backside).

Glasshousebltr

Staggered.

Bob

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Bob

mms

OK thanks.

I've now cut all my trim pieces, and am about to pre-drill my nail holes.

Just want to be sure what you mean.

8" oc staggered or 8" oc in-line
in other words for a 48" pc - 7 nails or 13 nails?

RowdyRed94

They eye tends to notice patterns more so than randomness. Never nail in pairs if you can help it. Stagger them at least slightly. On a 48" board I'd offset a pair near each end and put about 5 more in between for 9. If you don't double up on the ends your board could warp out at the corner that's not nailed.

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Clint - carpenter, coordinator, webmaster

mms

Thanks for the reply (and for suggestion to "double up" @ ends)