Post Boxes For Flats

Canada Post Flat Rate Boxes

Medium Flat Rate Box — 1 (top-loading) $13.75 Commercial Base. $15.50 at Post Office & Online. Outside: 11 1/4″ x 8 3/4″ x 6″ Inside: 11″ x 8 1/2″ x 5 1/2″ Office Supplies. Medium Flat Rate Box — 2 (side-loading) $13.75 Commercial Base. Priority Mail Flat Rate Boxes Variety Pack - VARIETY FRB. $0.00 Quick View Priority Mail Medium Flat Rate Box - 1. Single, Pack of 10 or 25. 11-1/4'(L) x 8-3/4'(W) x 6'(H) $0.00 Quick View Priority Mail Express Padded Flat Rate Envelope. Pack of 5, 10, or 15. 9-1/2'(L) x 12-1/2'(W). Create the most original wedding invitations. With this invitation box you'll add a special touch to your event. Surprise your guests!

The new European data protection law requires us to inform you of the following before you use our website:

We use cookies and other technologies to customize your experience, perform analytics and deliver personalized advertising on our sites, apps and newsletters and across the Internet based on your interests. By clicking “I agree” below, you consent to the use by us and our third-party partners of cookies and data gathered from your use of our platforms. See our Privacy Policy and Third Party Partners to learn more about the use of data and your rights. You also agree to our Terms of Service.

Home » Corrugated Boxes → Flat Boxes

This product has been added to your shopping cart.

The smaller depths on these cartons make them ideal for shipping round or flat items.

Post Boxes Locations

Perfect for shipping books, picture frames, mirrors and clothing.
Boxes are manufactured from 200#/ECT-32 kraft corrugated.
Cartons are sold in bundle quantities and ship flat to save on storage space and shipping.

Post Boxes Nearby

Page:1 2345678

Post Boxes For Apartments

Product

Add

Discounts can be applied to orders depending on your quantity, please refer to the table below the product name for more details.

10 x 10 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$30.29	$28.78	$27.26

10 x 6 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$20.58	$19.55	$18.52

10 x 7 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$23.48	$22.31	$21.13

10 x 8 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$24.12	$22.91	$21.71

11 1/4 x 8 3/4 x 2 3/4' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$29.19	$27.73	$26.27

11 x 11 x 4' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$30.92	$29.37	$27.83

12 x 10 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$32.19	$30.58	$28.97

12 x 12 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$39.95	$37.95	$35.96

12 x 9 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$27.20	$25.84	$24.48

13 x 10 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$30.04	$28.54	$27.04

13 x 13 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$41.20	$39.14	$37.08

13 x 13 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$38.80	$36.86	$34.92

13 x 9 x 4' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$23.42	$22.25	$21.08

14 x 10 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$33.19	$31.53	$29.87

14 x 10 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$30.18	$28.67	$27.16

14 x 12 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$38.00	$36.10	$34.20

14 x 14 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$44.02	$41.82	$39.62

14 x 6 x 2' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$20.92	$19.87	$18.83

15 x 11 x 4' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 Per Bundle	$35.11	$33.35	$31.60

15 x 12 x 3' Flat Corrugated Boxes

Unit Size	1	2-3	4+
25 EACH PER BUNDLE	$42.69	$40.56	$38.42