Posters Indoor posters custom or your artwork. Common sizes are 11 x 17, 16 x 20, 18 x 24, 24 x 36, 36 x 48, or custom. Get a Quote Size 11 x 1716 x 2018 x 2424 x 3636 x 48custom Quantity (required) Paper 180# Bright White Satin PaperCustom (Explain in message) Short Project Description