These are stencils cut from 4 ply mat board which makes them heavier than normal stencils. Available in the outer dimensions listed below. Each opening is sized on the stencil to leave a border for overpainting. Custom sizing is available upon request Message us for Exact Openings Sizes: 24x36-Letter Height 23" 22x28-Letter Height 21" 20x24-Letter Height 19" 18x24-Letter Height 17" 16x20-Letter Height 15" 11x14-Letter Height 10" 8x10-Letter Height 7" 5x7-Letter Height 4" If you need to know a specific size for the openings just message us and we will be happy to help. We answer all messages very fast! We automatically combine shipping! Shipping will never be more than $4.95 for your whole order!!!