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Number 10 Envelope Size

As the most common business envelope style, regular envelopes are used for business, direct-mail and personal correspondence. Commercial sizes #10 are 4 1/8" high x 9 1/2" wide. We carry #10 envelopes in multiple colors, window options, sealing methods and paper materials such as security tints. Most orders are shipped same or next day.
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Digi-Clear Machine Insertable Window Envelope (No 10) 3181 #10 Digi-Clear Window Envelopes (4-1/8x9-1/2) Machine Insertable 24lb White 500/BX

No.10, 1-1/8 x 4-1/2 Window, Laser Compatible, 24lb, 500/Box

Price: $20.99
Security Tints Special Double Window (4-1/8 x 9) 3865 #10 Double Window Envelopes (4-1/8x9) 24lb White, Black Tint 500/BX

TW 7/8 x 3, 5/8L - 2 1/4B; BW 1 x 4, 5/8L - 7/8B (500/Box)

Price: $42.99
Security Tints DG-1NT Window (4-1/8 x 9-1/2) 3343 #10 Double Window Envelopes (4-1/8x9-1/2) 24lb White 500/BX

TW 7/8 x 3 1/4, 5/8L - 2 3/8B; BW 1 x 4, 5/8L - 1B (500/Box)

Price: $30.99

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Security Tints DG-1 Window (4-1/8 x 9-1/2) 3342 #10 Double Window Envelopes (4-1/8x9-1/2) 24lb White, Blue Tint 500/BX

TW 7/8 x 3 1/4, 5/8L - 2 3/8B; BW 1 x 4, 5/8L - 1B (500/Box)

Price: $36.99
#10 Western Sulphite Regular Envelope (W2560) #10 Envelopes (4-1/8x9-1/2) 20lb White 500/BX

4-1/8 x 9-1/2 (#10), 92% White, 20lb, 500/Box

Price: $23.99
Classic Crest Regular Envelope (No. 10) 2555 #10 Envelopes (4-1/8x9-1/2) 24lb Avon Brilliant White, 500/BX

#10, 93% Bright Avon Brilliant White, 500/Box

Price: $70.99
Ultra-White 25% Cotton Regular Envelope (No. 10) 2586 #10 Envelopes (4-1/8x9-1/2) 24lb Bright White 25% Cotton 500/BX

#10, Cotton Bond Laser Finish, Window, 500/Box

Price: $53.99
Ultra-White Regular Envelope (No. 10) 2959 #10 Envelopes (4-1/8x9-1/2) 24lb Bright White 500/BX

#10, Bright White Opaque, 500/Box

Price: $21.99
Western Bond Regular Envelope (No. 10) 2833 #10 Envelopes (4-1/8x9-1/2) 24lb Bright White, 25% Cotton Bond, 500/BX

#10, High-grade 25% Cotton, 98% Bright, 500/Box

Price: $66.99
Western Superwhite Regular Envelope (No. 10) 2570 #10 Envelopes (4-1/8x9-1/2) 24lb Bright White, 500/BX (W2570)

#10, Archival Quality Paper, Window, 500/Box

Price: $54.99
Ultra-White Regular Envelope (No. 10) 2958 #10 Envelopes (4-1/8x9-1/2) 24lb Bright White, Split Seal 500/BX

#10, Bright White Opaque, Split Seal 500/Box

Price: $22.99
Western Bond Regular Envelope (No. 10) 2835 #10 Envelopes (4-1/8x9-1/2) 24lb Cream, 25% Cotton Bond, 500/BX

#10, High-grade 25% Cotton, Cream, 500/Box

Price: $65.99
Roptex Regular Envelope (No. 10) 2704 #10 Envelopes (4-1/8x9-1/2) 24lb Kraft 500/BX

#10, 24lb. Brown Kraft, 500/Box

Price: $27.99
Antique Linen Regular Envelope (No. 10) 2961 #10 Envelopes (4-1/8x9-1/2) 24lb Natural 500/BX

#10, Natural, 500/Box

Price: $61.99
Classic Crest Regular Envelope (No. 10) 2557 #10 Envelopes (4-1/8x9-1/2) 24lb Natural White, 500/BX

#10, Natural White, 500/Box

Price: $70.99