I just received my first commissioned project for replacing a large picture frame that frames a 24” x 36” poster. The owner balked at the $800 the local frame shop wanted to charge and instead ordered a frame online for $180. Unfortunately, after a year the composite 1 1/4” wide frame has twisted and distorted under weight – then he asked if i could make something for him. Having never made a frame this large, i would value input on several points when designing a frame of this size so that i don’t make something that fails down the road.
I’ve listed some design categories below. Please weigh in on them and if they are unnecessary to consider just say so.
Frame Molding Size
What is the minimum size (width and thickness) of the style/rail you would recommend for framing a 24×36 poster? (Let’s assume we are using glass instead of plexiglass.)
Hardwood or softwood? When does it matter (or does it matter at all) for large frames and weight/distortion considerations?
I like key holes made with my router because it allows you to hang the frame flush to the wall and if they are there, there use is optional. Would you recommend against this method for a large/heavy frame?
I’m thinking core board because it’s light, and relatively stiff. Would you recommend differently?
I’ve got my own method of crating 1/8 thick x 3/4 wide x 2 inch long fingers that swivel to hold the backing and allow easy changing of the artwork. They also have dado-ed pockets to maintain the flush back profile of the frame. Any reason that this might not work? Got a better solution? ( i may try and upload a photo on this later)
I have a frame miter sled that is dead nuts accurate and glue up with a bessey frame clamp and titebond I, then spline the joints. Strong enough? Got a better recommendation?
With such large lengths, i’m thinking that locking out moisture is essential to durability of the frame so that twisting and warping are eliminated. Whats the minimum level of finish you would put on this? I’m thinking exclusive oil finish is not sufficient. What about oil/varnish mix (like danish oil). On the other end would be poly, i guess.
Glass or plexi? Tempered or laminated? Whats appropriate for a large frame?
Thanks in advance for all the help!