Deep Blue 21x33 Mat for 17x29 opening (Mat Only)
Mat for picture frames in deep blue color, standard 4-ply, lignin-free and pH-neutral. Actual opening is 16.75x28.75 to fit 17x29 photos; custom openings available upon request
Highlights
- lignin-free, pH-neutral material
- precise size for 21x33 frame
- high color accuracy and classic look
Pros
- lignin-free and pH-neutral material
- fits 21x33 frame with 17x29 opening
- accurate measurements and fit
- color accuracy and classic appearance
- construction quality noted by customers
Cons
- actual opening slightly smaller than 17x29
- custom openings available upon request (additional effort)
Best For
Features
- 4‑ply mat material used in custom frame shops
- Lignin‑free and pH‑neutral construction for archival protection
- Mat opening sized 16.75x28.75 inches for a 17x29 photo
- Fits into a 21x33 frame; mat is frame‑only option
