Sponsored Products
Page 1 of 1
JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 25/Pack (87733a)~#|#~B8E68BC7-9285-4425-A505D0429ED8ACD0_sc7JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 25/Pack (87733a)~#|#~821DB06C-0E58-4929-936DDC2312EE1DD5_sc7
Item: 24175095
Model: 87733A
No reviews yet
Price is $23.59
Unit of measure 25/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Blue, 100/Carton (QUA63577)~#|#~sp44342534_sc7Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Blue, 100/Carton (QUA63577)~#|#~sp44342533_sc7
Item: 813412
Model: QUA63577
Price is $198.59
Unit of measure 100/Carton
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Tech-No-Tear Redi-Strip Catalog Envelopes, 10" x 13", White, 100/Box (QUA77397)~#|#~sp44342898_sc7Quality Park Tech-No-Tear Redi-Strip Catalog Envelopes, 10" x 13", White, 100/Box (QUA77397)~#|#~sp44342897_sc7
Item: QUA77397
Model: QUA77397
Price is $124.36
Unit of measure Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Envelopes, Navy Blue, 10/Pack (12828427f)~#|#~sp4800477_sc7JAM Paper 10 x 13 Open End Catalog Envelopes, Navy Blue, 10/Pack (12828427f)~#|#~sp4800476_sc7
Item: 2633139
Model: 12828427F
No reviews yet
Price is $15.89
Unit of measure 10/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Universal Gummed Kraft Catalog Envelope, 10" x 13", Light Brown, 250/Box (UNV44105)~#|#~sp4614075_sc7
Item: 2598456
Model: 44105
No reviews yet
Price is $84.99
Free delivery by Mon, Apr 13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Button & String Inter-Departmental Envelope 10" x 13", Red, 100/Box (QUA63574)~#|#~sp46777715_sc7
Item: 680165
Model: QUA63574
Price is $201.99
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Cellophane Envelope with Peel & Seal Closure, 10 x 13, Clear, 100/Pack (10X13CELLO)~#|#~m000068422_sc7
Item: 262916
Model: 10X13CELLO
Price is $76.89
Unit of measure 100/Pack
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Envelopes, Black, 100/Pack (87733)~#|#~B1D4FB9C-0CB6-4AC4-A48115CC37369FA3_sc7JAM Paper 10 x 13 Open End Catalog Envelopes, Black, 100/Pack (87733)~#|#~BEF8D724-0DA6-4440-8ADC3B053171968F_sc7
Item: 261785
Model: 87733
Price is $63.49
Unit of measure 100/Box
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX Open End Envelopes, 10" x 13", Baby Blue, 50/Pack (EX4897-13-50)~#|#~E0BF0FE0-8C5A-484B-8B19EB5ED52AB7F5_sc7
Item: 282031
Model: EX4897-13-50
Price is $53.19
Unit of measure 50/Pack
Free delivery by Mon, Apr 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Colored Envelopes, Blue Recycled, 25/Pack (87725a)~#|#~sp12489300_sc7JAM Paper 10 x 13 Open End Catalog Colored Envelopes, Blue Recycled, 25/Pack (87725a)~#|#~sp12489299_sc7
Item: 24175061
Model: 87725A
Price is $24.79
Unit of measure 25/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper® 10 x 13 Booklet Envelopes, White, 50/Pack (4023222A)~#|#~sp111772382_sc7JAM Paper® 10 x 13 Booklet Envelopes, White, 50/Pack (4023222A)~#|#~sp111772381_sc7
Item: 24365109
Model: 4023222A
Price is $26.19
Unit of measure 50/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Booklet Envelope 10" x 13", Brown Kraft, 50/Pack (16162-50)~#|#~A701FB18-B0BB-4A03-A50CEC3D154A9A17_sc7
Item: 24604523
Model: 16162-50
No reviews yet
Price is $24.95
Unit of measure 50/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179896_sc7Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179895_sc7
Item: 377355
Model: QUA63562
Price is $104.29
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Staples Gummed Kraft Catalog Envelopes, 10"L x 13"H, Brown, 250/Box (486946/17033)~#|#~s1224585_sc7Staples Gummed Kraft Catalog Envelopes, 10"L x 13"H, Brown, 250/Box (486946/17033)~#|#~s1224506_sc7
Item: 486946
Model: ST486946-CC
Price is $104.89
Unit of measure 250/Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Redi-Strip Catalog Envelopes, 10" x 13", Brown Kraft, 100/Box (QUA44762)~#|#~sp44490028_sc7Quality Park Redi-Strip Catalog Envelopes, 10" x 13", Brown Kraft, 100/Box (QUA44762)~#|#~sp44490027_sc7
Item: QUA44762
Model: QUA44762
Price is $89.89
Unit of measure Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Mead Press-It Seal-It Envelopes, 10" x 13", 4/Box, 12 Boxes (MEA76082-12)~#|#~sp151425053_sc7Mead Press-It Seal-It Envelopes, 10" x 13", 4/Box, 12 Boxes (MEA76082-12)~#|#~sp151425052_sc7
Item: 24516829
Model: MEA76082-12
No reviews yet
Price is $33.69
Unit of measure 12/Bundle
Delivery by Fri, Apr 17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Clasp Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0293058_sc7Quality Park Clasp Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0171250_sc7
Item: QUA37597
Model: QUA37597
No reviews yet
Price is $214.39
Unit of measure Box
Free delivery by Mon, Apr 13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, 100/Pack (12931116c)~#|#~sp4211471_sc7JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, 100/Pack (12931116c)~#|#~sp4211470_sc7
Item: 2478099
Model: 12931116C
No reviews yet
Price is $81.29
Unit of measure 100/Pack
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Kraft Security Tinted Inter-Departmental Envelope 10" x 13", Multi Colors, 100/Box (QUA63778)~#|#~sp41687907_sc7Quality Park Kraft Security Tinted Inter-Departmental Envelope 10" x 13", Multi Colors, 100/Box (QUA63778)~#|#~sp41687906_sc7
Item: 458290
Model: QUA63778
Price is $100.89
Unit of measure 100/Box
Free delivery by Mon, Apr 13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, Bulk 500/Box (12931116)~#|#~m004542929_sc7JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, Bulk 500/Box (12931116)~#|#~m004542928_sc7
Item: 2329369
Model: 12931116
No reviews yet
Price is $320.59
Unit of measure 500/Box
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper® 10 x 13 Booklet Envelopes with Peel and Seal Closure, White, 100/Pack (356828787D)~#|#~sp115352158_sc7JAM Paper® 10 x 13 Booklet Envelopes with Peel and Seal Closure, White, 100/Pack (356828787D)~#|#~sp115352157_sc7
Item: 24365151
Model: 356828787D
Price is $58.89
Unit of measure 100/Pack
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (QUAR1590)~#|#~sp44490056_sc7Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (QUAR1590)~#|#~sp44490055_sc7
Item: QUAR1590
Model: QUAR1590
No reviews yet
Price is $209.99
Unit of measure Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Ultra Lime Green, 25/Pack (v0128186a)~#|#~sp11854834_sc7JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Ultra Lime Green, 25/Pack (v0128186a)~#|#~sp11854833_sc7
Item: 24145255
Model: V0128186A
No reviews yet
Price is $24.99
Unit of measure 25/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 13" x 10", White, 100/Box (QUAR1580)~#|#~sp40316063_sc7Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 13" x 10", White, 100/Box (QUAR1580)~#|#~sp40316062_sc7
Item: 641878
Model: QUAR1580
Price is $134.99
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Ultra Lime Green, 100/Pack (V0128186)~#|#~sp136742280_sc7JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Ultra Lime Green, 100/Pack (V0128186)~#|#~sp136742278_sc7
Item: 261769
Model: V0128186
Price is $66.69
Unit of measure 100/Box
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Ship-Lite Self Seal Catalog Envelopes, 10" x 13", White, 100/Carton (SLE10132WS)~#|#~sp48967650_sc7
Item: 947671
Model: SLE10132WS
Price is $204.09
Unit of measure 100/Carton
Free delivery by Fri, Apr 17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Partners Tyvek Self Seal Catalog Envelope 10" x 13", Silver, 100/Carton (TYC1013S)~#|#~5BA92B00-9829-43DA-AD88EC9947A4FEA6_sc7
Item: 2301084
Model: TYC1013S
Price is $280.49
Unit of measure 100/Carton
Free delivery by Fri, Apr 17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 10" x 13" Booklet Envelopes, Clear Translucent, 50/Pack~#|#~m000081411_sc7
Item: 282023
Model: E4898-00-50
No reviews yet
Price is $58.49
Unit of measure 50/Pack
Free delivery by Mon, Apr 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 10" x 13" 80lbs. Open End Envelopes, Magenta Pink, 50/Pack (EX4897-10-50)~#|#~AA38F618-50F7-4DAB-B5ADD9E153FEC827_sc7
Item: 282043
Model: EX4897-10-50
No reviews yet
Price is $53.39
Unit of measure 50/Pack
Free delivery by Mon, Apr 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Partners Tyvek Envelopes, 10" x 13", Green, 100/Case (TYC1013G)~#|#~m004079055_sc7
Item: 2301086
Model: TYC1013G
No reviews yet
Price is $137.39
Unit of measure 100/Carton
Free delivery by Fri, Apr 17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Peel & Seal Kraft Open End #13 Catalog Envelope, 10" x 13", Brown, 500/Pack (13034233C)~#|#~sp124518861_sc7JAM Paper Peel & Seal Kraft Open End #13 Catalog Envelope, 10" x 13", Brown, 500/Pack (13034233C)~#|#~sp124518841_sc7
Item: 24295081
Model: 13034233C
No reviews yet
Price is $220.39
Unit of measure 500/Pack
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Redi-Seal Kraft Catalog Envelopes, 10" x 13", Kraft, 250/Box (QUA43762)~#|#~sp44343591_sc7Quality Park Redi-Seal Kraft Catalog Envelopes, 10" x 13", Kraft, 250/Box (QUA43762)~#|#~sp44343590_sc7
Item: 377346
Model: QUA43762
No reviews yet
Price is $119.29
Unit of measure 250/Box
Free delivery by Mon, Apr 13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park First Class Redi-Strip Redi-Seal Catalog Envelope, 10" x 13", White/Green Border, 100/Box (44786)~#|#~s0298034_sc7Quality Park First Class Redi-Strip Redi-Seal Catalog Envelope, 10" x 13", White/Green Border, 100/Box (44786)~#|#~s0171367_sc7
Item: QUA44786
Model: QUA44786
Price is $46.29
Unit of measure Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 10 x 13 Kraft Open End Envelopes 50/Pack, Gray Kraft w/ Peel & Seel (75530-50)~#|#~sp14807591_sc7
Item: 24261336
Model: 75530-50
No reviews yet
Price is $42.79
Unit of measure 50/Pack
Free delivery by Mon, Apr 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Plastic Hook & Loop Envelopes, 9.8" x 13", Multicolored, Assorted Colors, 6/Pack (218V2OLIPRYSA)~#|#~0380B2F1-8C02-4E73-A1FA609BD16D6DFD_sc7JAM Paper Plastic Hook & Loop Envelopes, 9.8" x 13", Multicolored, Assorted Colors, 6/Pack (218V2OLIPRYSA)~#|#~3B2EE5A0-94AF-449F-96F34D30FAF56DD1_sc7
Item: 24559312
Model: 218V2OLIPRYSA
No reviews yet
Price is $44.79
Unit of measure 2/Pack
Free delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 25/Box (QUAR4202)~#|#~sp44490032_sc7Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 25/Box (QUAR4202)~#|#~sp44490031_sc7
Item: QUAR4202
Model: QUAR4202
Price is $78.69
Unit of measure 25/Box
Free Next-Day eligible by tomorrow
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10" x 13" Open End Catalog Envelopes, Dark Purple, 10/Pack (1287032C)~#|#~m003904747_sc7JAM Paper 10" x 13" Open End Catalog Envelopes, Dark Purple, 10/Pack (1287032C)~#|#~m003904746_sc7
Item: 38273
Model: 1287032C
No reviews yet
Price is $25.49
Unit of measure 10/Pack
Delivery by Wed, Apr 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Flap-Stick® Tyvek® FCB Open-Side Expansion Envelopes, 10" x 13" x 2", White, 100/Ct~#|#~s0462615_sc7
Item: QUAR4440
Model: QUAR4440
No reviews yet
Price is $158.19
Unit of measure Carton
Free delivery by Mon, Apr 13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Violet Purple Recycled, 50/Pack (v0128182i)~#|#~sp11854837_sc7JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Violet Purple Recycled, 50/Pack (v0128182i)~#|#~sp11854836_sc7
JAM Paper 10 x 13 Open End Catalog Colored Envelopes with Clasp Closure, Violet Purple Recycled, 50/Pack (v0128182i) is Out of stock
Item: 24142003
Model: V0128182I
No reviews yet
Price is $45.19
Unit of measure 50/Pack
Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0293058_sc7Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0171250_sc7
Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597) is Out of stock
Item: 813389
Model: QUA37597
Price is $84.69
Unit of measure 250/Box

Trending now

Page 1 of 4

Whether it’s the bulk of the parcel or the importance of the documents inside, some business mailings require extra security and protection in transit. Shop for 10 x 13 envelopes at Staples to meet your needs.

What are 10 x 13 Envelopes?

10 x 13 envelopes are a type of shipping, mailing and packing supply made from thick paper stock to keep their contents safe. Each is a convenient 10” by 13” size. They include a sturdy center seam for extra protection when shipping high quantities of documents in one envelope. In addition, most 10 x 13 envelopes feature their flap on the short side of their rectangular shape.

At Staples, we offer a wide variety of 10 x 13 envelopes in different sizes, colors and materials in order to provide users with versatile options.

What Can 10 x 13 Envelopes Be Used For?

Use these hardy envelopes for sending, storing and filing documents in the office or from home. They’re ideal for mailing, whether you’re sending booklets, brochures or sales materials. Aside from that, 10 x 13 envelopes are a staple for interoffice use. In fact, they are even at times referred to as interoffice envelopes.

What Kind of 10 x 13 Envelopes Should You Buy?

While their size remains consistent, consider the following when purchasing your 10 x 13 envelopes.

Envelope Closure

There are a few ways to seal or close a 10 x 13 envelope, also known as a catalog envelope, including the following:

Gummed

Like the closure on invitation envelopes, a gummed 10 x 13 envelope includes a traditional water soluble gum strip that seals the flap when moistened. This is the most common and affordable style of closure, but lacks efficiency compared to self seal closures.

Clasp

Clasp envelopes feature a rust-resistant metal clasp and reinforced hole for security and protection of the contents inside. This robust construction prevents the envelope from being accidentally opened during transit. Clasp 10 x 13 envelopes can also feature a gummed strip on their flaps for added peace of mind when mailing sensitive documents.

Self Seal

Self seal closures feature strong resin adhesive with protective cover strips, similar to business envelopes. Simply peel away the protective backing and press down to seal this time-saving closure type. Self seal 10 x 13 envelopes are faster to use and last longer in storage due to the protective strips.

Pack Size

Staples carries catalog envelopes in a variety of pack sizes for whatever your needs may be. Whether you need a single 10 x 13 envelope for storing your most important documents or hundreds for bulk mailings, you can find the right quantity per pack at Staples.