Replies

1. 
   WayneL5 | Oct 08, 2003 08:54pm | #1

   If you are gluing long grain to long grain the glue joint will be stronger than the wood anyway, so it's not too critical.  About every 8" in this case would be fine.  You could go closer if you are gluing end grain.

2. 
   migraine | Oct 09, 2003 12:23am | #2

   the more the merrier(stronger)

3. 
   bmwz3coupe | Oct 09, 2003 03:45am | #3

   If you are talking about a outdoor window box, this is what happen to me. I built 2 window boxes out of cypress for a lite outdoor proof box. I used biscuits for all joints but with in 3 months the joints all started coming apart due to the mostiure level in the boxes. I used Titebond II. I took the two boxes all apart and used screws the second time. Maybe a polyurathane glue would have worked better the first time. Good luck with your project.

1. 
   scooleen | Oct 09, 2003 03:17pm | #4

   Yes, this is being used outdoors.  I am using polyurethane glue (gorilla glue) in conjunction with a few countersunk stainless steel square drive screws as backup.  I spaced the biscuites 6 inches apart (I read that in FWW), with a coat of primer, and two coats of paint I hope they will hold for some time.

1. 
   BG | Oct 09, 2003 06:05pm | #5

   scooleen,

   I would design the box to avoid any stress on screws or biscuits.  A dado in the front and back pieces to accept a rabbited bottom board...dado's on the end pieces to accept the face board...and maybe sliding dovetail to connect the end pieces to the back board.  Then the screws have minimun work to do..