Available in the United States usually via UPS Ground. Please inquire about international shipping.
For small works (14 x 18 and less) maple floater frames are generally suggested. They are relatively inexpensive and work well to show and protect the painting. An example follows.
Larger works (especially canvas streteched over board) are typically sold unframed as no frame is required.
Maple Hardwood Floater Frame
on 10x12 painting