Octagon window trim

StanT

Building an octagon box (3/4 inch popular, 9.5 inches long and 11 inches deep) that will become the inside trim for and octagon shaped window. The eight pieces are already cut with 22.5 inch angled ends. I'm ready to assemble the box. Besides gluing, which I will do, what is the best way to connect the sides - power nailer or pre-drill and use trim screws?

Note: I trying to determine how to assemble the octagon box before I place it in the window.

Attached Thumbnails

 

sdsester

I would countersink screws. You seem to have cut and fitted it nicely. Not sure I would glue it in case you ever had to take it apart. There is no real stress on the box calling for glue is there? Not gluing it would let it contract and expand as needed.

__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

hand drive

a good way to pre build that and know it will fit is to draw it out on a piece of plywood or something flat and then build it with glue and nail gun while using the drawn out diagram as your build placement guide.

woodworkbykirk

gun nail it


the only time i screw together jambs is for very large windows and door site built door jambs

Hammer450R

For that i would biscuit join it then instal it into the opening

__________________
If my advise helped you hit "Thanks"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

woodworkbykirk

the only issue with biscuits is that it may make the jamb too rigid.. with most vinyl windows the extension slot isnt perfect so you sometimes have to manipulate and flex the extension in order to get it into the slot. nails alone will allow it to be adjusted

Hammer450R

And for that i would probably biscuit a U shape and then biscuit a 3 piece top, set it in the slots of the window to dry. Then biscuit the lid on shimming it to dry in the window. Perfect tight seams that will last no matter how cold hot the window gets.

__________________
If my advise helped you hit "Thanks"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Hammer450R

Not to argue with you, you have great points but the vinyl slot is usually good its the corners that get funky, nice sharp razor knife trims them up nice.
Paint grade I would go with your method
Stain grade, which that looks like, I still would go solid as a rock. Actually I love my joiner so much i would use it for both haha

__________________
If my advise helped you hit "Thanks"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Hammer450R

You could actually cut all your slots, drop biscuits in dry, assembly dry, use string or zip tie like a barrel and test fit.
All goes well and you have some play id glue it, re zip tie it and install it, shim it and trim it.

__________________
If my advise helped you hit "Thanks"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

kwikfishron

I do a tape clamp glue up on stuff like that. Biscuits on a octagon window surround...really?

__________________

Hammer450R

Yep

__________________
If my advise helped you hit "Thanks"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.